Zu Ihrem Komfort, sind alle Patentschriften in einer Datenbank mit echtem Patentindex (c). Sie können in allen Titeln suchen, ohne einzelne PDF-Dateien öffnen zu müssen, wie das bei anderen Sammlungen gerne der Fall ist. Sie erhalten hier mehr als nur eine Pateninfo. Sie können aber auch durch ALLE Seiten schnell durchblättern, wenn Sie etwas suchen.

Pistolen und Zubehör. Lernen Sie die neusten Innovationen auf dem Sektor Pistolen und Handfeuerwaffen kennen. Da gibt es komplette Explosionszeichungen ganzer Waffen, ideal für Reparatur und Wartung. Die Abbildungen eignen sich auch hervorragend zur Gestaltung von Werbung und Anzeigen.

Lernen Sie von dieser aussergewöhnlichen Patentsammlung und lassen Sie sich inspirieren. Damit dies auch gelingt gibt es dazu noch ein Bonusbuch aus unserem Verlag (siehe unten).

In den Abbildungen obenvsind nur einige Beispiele der sehr detailliert bebilderten und beschriebenen Pistolen, Designs, Techniken und Patente. Eine Patentschrift muss so ausführlich beschrieben sein, dass ein technisch Versierter diese nachvollziehen und auch nachbauen kann. Patentschriften sind immer die ersten Veröffentlichungen von Innovationen, oft lang bevor solche Artikel im Handel erhältlich sind. Ausserdem ist diese Patentsammlung ein unergründlicher Pool von innovativen Ideen für die eigene Anwendung (selbstverständlich dürfen diese Produkte in unveränderter Form nur für private, nicht kommerzielle Zwecke nachgebaut werden. Die ausführlich beschriebenen Gedankengänge der Erfinder schulen den eigenen Geist für Ihre vielleicht nächste eigene "Erfindung". Profitieren Sie von diesem Wissensvorsprung.

Normalerweise können es sich nur Firmen leisten umfangreiche Patentrecherchen, wie die hier angebotene, erstellen zu lassen. Die Zusammenstellung solcher Sammlungen in gut archivierbarem Format ist aufwendig und setzt kostenpflichtige Datenbankprogramme voraus. Manche amerikanische Firmen berechnen für die Recherche bis zu 3,50 Dollar pro Patent!

Die Zusammenstellung wird auf Originaldatenträgern (CD oder DVD) des Verlages ausgeliefert. Die Seitenangabe in DIN A 4 bezieht sich auf den Ausdruck der Sammlung auf einem DIN A 4 Drucker. Zum Lesen benötigen Sie den Acrobat Reader am Version 5. Zusammen mit Ihrem Patentportfolio erhalten Sie eine Lizenznummer, die Ihnen den Zugriff auf die Datei ermöglicht. Die Zusammenstellungen geben einen komfortablen Zugriff auf alle Patenttitel. Diese können ohne ein Wechseln der Datei alle betrachtet und auch ausgedruckt werden.

Angaben zum Nominalwert einer Patentzusammenstellung beziehen sich auf einen Durchschnittspreis von 3,50 Euro pro Patentschrift in PDF Form, der von führenden Anbietern und Agenturen berechnet wird.

Target grip apparatus for a firearm;Device for firearms and firearm;Safety lock against an undesired pulling of a short firearm out of its scabbard;Firearm silencer;Firearm magazine grip;Firearm safety device;Firearm adapter rail system;Photographic firearm apparatus and method;Accessory mount for a firearm;Spring-loaded firearm safety indicator;Pliant firearm projectiles;Electronic device with concealed firearm system;Firearm leveler and stabilizer;Hand-held firearm with a combination lock;Extended lever for a firearm;Firearm rest having shock absorbing line;Vehicle mounted locking firearm support;Method and apparatus for training a shooter of a firearm;Firearm with fixed cartridge magazine top;Fire control authorization system for a firearm;Recoil system for the receiver of a firearm;Compressed gas-powered gun simulating the recoil of a conventional firearm;Rail cover for firearm rail systems;Non-integral firearm safety lock;Extended lever for a firearm;Firearm bolt assembly;Firearm conversion kit;Ammunition drum and firearm;Methods and apparatus for fastening a silencer onto the barrel of a firearm;Adjustment device for a firearm system;Universal firearm cleaning system;Disablement mechanism for a firearm;Laser pistol and method or system for retrofitting sharpshooting pistols;Method of reconfiguring a firearm receiver system for receiving magazine-fed ammunition and belt-fed ammunition;Firearm magazine holder;Weapon system comprising a firearm and a non-lethal means for selectively ejecting a stream of fluid;Magazine safety units for a self-loading firearm;Revolver cylinder configured to accommodate blanks and method for simulating firearm operation;Pistol with a device for determining the number of shots;Revolver;Firearm upper receiver assembly with ammunition belt feeding capability;0.22 caliber long rifle removable conversion system kit for black powder cap and ball reproduction and replica revolver--recreation and gallery shooting;Firearm bore sight system;Bolt assembly for a firearm;Small firearm muzzle accessory mount;Firearm laser training system and method facilitating firearm training with various targets and visual feedback of simulated projectile impact locations;Weapon, in particular a self-loading pistol;Indexing system to aid in the installation of a telescopic sight on a firearm;Method of manufacture of a powder-based firearm ammunition projectile employing electrostatic charge;Firearm barrel change apparatus;Offset attachment for use with a firearm scope;Barrel for a firearm;Gun locking device and method for disabling a firearm;Safety units for a hammer in a firearm;Multifunctional firearm muzzle attachments;Sighting device for a grenade launcher mounted on a firearm;Safety holster for preventing access to a firearm by unauthorized users;Automatic firearm with a bolt assembly that moves between a closed position and an open position;Photographic firearm apparatus and method;Laser transmitter assembly configured for placement within a firing chamber and method of simulating firearm operation;Firearm laser training system and method employing an actuable target assembly;Firearm laser training system and method employing modified blank cartridges for simulating operation of a firearm;Firearm mounted illumination device;Dry-fire training pistol;Pistol;Extendable end-plate for pistol magazines;Magazine-mounted, integral firearm lighting system;Firearm bolt assembly;Device and method for carrying, loading and cocking a firearm;Firing pin mounting assembly for a firearm;Firearm discharge detection device and warning system;Pistol case;Firearm component storage adapter;Optical imaging device for firearm scope attachment;Firearm equipped with rapid safety mechanism, drop safety and safety device kit;Automatic firearm with a moving bolt assembly with locking projections;Safety holster for preventing access to a firearm by unauthorized users;Power storage unit charging system for firearm;Arrangement for opening the dust flap of a firearm;Muzzle-loading firearm;Device for securing a firearm, as well as for securing and/or storing objects;Heat sink for firearm barrels and method for attachment and use;Firing lever arrangement for a firearm;Rotary magazine for firearm with hold-open lever;Safety mechanism for preventing unauthorized use of a firearm;Weapon housing system for an automatic loading firearm;Firearm with personal safety interlock mechanism;Firearm;Firearm safety lock;Firearm safety system with implanted computer chip;Revolving rack for holding or displaying pistol nozzles;Combination barrel adjustment and magazine cutoff for a takedown firearm;Single trigger sequential firing mechanism for a double barrel firearm;Apparatus for attaching a supplemental device to a minimally altered host firearm;Cartridge ejection mechanism for converted automatic pistol;Fixture for quickly clipping accessory on pistol;Electronically controlled firearm;Location-based firearm discharge prevention;Grinding jig for firearm recoil pads;Firearm safety and control system;Breech block firearm safety device;Firearm safety lock;Cartridge feed device for a repeating firearm;Cartridge casing ejector for a firearm;Mounting device of pistol laser site;Cartridge feed device for a repeating firearm;Personal firearm safety mechanism;Mounting device of pistol laser sight;Double action pistol;Firearm with an expansion chamber with variable volume;Photographic firearm apparatus and method;Vehicle mounted locking firearm support;Firearm automatic locking system and method;Safety locking device for a firearm;Firing pin control device for a firearm;Trigger return system for a firearm;Firing nipple for muzzle loading firearm;Double action pistol;Apparatus and method for securely mounting a firearm to a support structure;Network-linked laser target firearm training system;Firearm holster lock with fingerprint identification means;Semi-automatic pistol barrel with precision barrel muzzle bushings and method;Self-loading pistol conversion kit for a locked self-loading pistol and a weapon system composed of an optionally locked or unlocked self-loading pistol;Housing for a firearm;Loader for revolver;Permanent safety device for preventing the accidental firing of a firearm;Safety hammer for a firearm;Firearm trigger lock;Firearms and docking station system for limiting use of firearm;Flare attachment for a firearm with a removable barrel;Pistol with locking mechanism;Double action pistol;Firearm shot detection system and method of using the same;Holster for a firearm;Disablement mechanism for a firearm;Pistol having a safety for preventing firing during disassembly;Pistol having a safety for locking a disassembly lever;Pistol, whose housing is composed of plastic;Pistol having a firing bolt safety device;Firearm casing;Protective firearm pouch;Firearm safety plug;Safety holster for preventing access to a firearm by unauthorized users;Rear sight for firearm;Firearm safety apparatus;Firearm with remotely activated safety system;Receiver for firearm;Pistol with trigger locking mechanism;Firearm safeguard device;Sidearm convertible between knife and firearm;Damped spring mechanism for a firearm;Firearm gripping device;Bolt assembly for a firearm;Devices and methods for controlled manual and automatic firearm operation;Archery bow firearm brace and guard;Firearm safety apparatus;Laser pistol;Ramrod for a muzzle-loading firearm;Mount for securing a sighting device to a firearm;Multiple-barrel, repeating firearm;Apparatus for attaching a supplemental device to a minimally altered host firearm;Muzzle loaded firearm safety device;Firearm, in particular a hand firearm;Firearm lock;Gas-operated pistol;Firearm forearm sling and method of use of same;Interlocked firearm;Method and apparatus for accelerating the cyclic firing rate of a semi-automatic firearm;Automatic cartridge monitoring and indicator system for a firearm;Three position safety having trigger and bolt engaging positions for a firearm;Universal firearm device and accessory mount;Firearm with metal insert in monolithic housing and stock;Hammer for a portable firearm;Simulated firearm sight alignment training system;Lockable safety device for an auto-loading firearm;Vehicle mounted locking firearm support;Breech bolt assembly for a firearm;Pressure-operated firearm;Firearm with blank cartridge device;Firearm, particularly a revolver pistol;Adjustable hammer main spring tensioning device for a revolver;Firearm safety mechanism;Non-lethal firearm device;Cartridge for a firearm; Semi-automatic revolver;Recoil system for the butt stock of a firearm;Firearm safety mechanism;Devices and methods for controlled manual and automatic firearm operation;Gas-operated automatic firearm, particularly a shotgun;Method and apparatus for training a shooter of a firearm;Electronically discharged and gas operated firearm;Method and apparatus for attaching a supplemental device to an unaltered host firearm;Method and apparatus for training a shooter of a firearm;Intelligent firearm safety mechanism;Resilient breech firearm;Apparatus for detecting the discharge of a firearm and transmitting an alerting signal to a predetermined location;Firearm with identification safety system;Breech bolt assembly for a firearm;Buffer for firearm;Magazine lock for a portable firearm;Fishing lure with firearm shell casing;Hand-held firearm with a light casing;Gas operated firearm piston/piston seal assembly;Combined water pistol and target for water catch game;Low pressure trigger pull with cocked position safety for a semiautomatic firearm;Retrofittable laser and recoil system for a firearm;Pistol detection system;Firearm safety storage box;Gas operated firearm;Magazine for a firearm including a self-contained ammunition counting and indicating system;Firearm hand grips for controlling an electronic module;Revolver;Large calibre firearm;Fire control mechanism for an automatic pistol;Semi-automatic firearm with non-removable magazine;Firearm with interchangeable mode cam;Less than lethal apparatus attachment for a firearm;Electrically discharged and gas operated firearm;Firearm safety mechanism;Folding stock for a pistol;Coupler for attaching a suppressor to a firearm flash hider;Extractor and system for extracting a cartridge from a firearm;Combination maintenance center, firearm support and utility storage box;Chamber for a firearm;Electronic firearm and process for controlling an electronic firearm;Semi-automatic pistol barrel with precision adjustment means and method of precision-adjusting semi-automatic pistols;Recoil system for the butt stock of a firearm;Firearm aiming support;Muzzle loading firearm projectile;Automatic firearm arranged for high safety and rapid dismantling;Firearm locking mechanism;Tamper proof multi-functional multipurpose firearm safety lock;Gas operated firearm;Pistol grip recoil system for the receiver of a firearm;Firearm carrier;Firearm alarm having remote indicator;Combined mechanical and Electro-mechanical firing mechanism for a firearm;Gas-powered repeating pistol;Small arms visual aiming system, a method for aiming a firearm, and headgear for use therewith;Delayed release cartridge for a firearm;Firearm security device;Apparatus for attaching a flashlight to a firearm;Snap-on firearm adapter;Firearm safety and dry-fire device;Muzzleloader firearm;Non lethal firearm device;Water-pistol and animal figure assembly;Automatic pistol;Process and system to brake the movement of a part cocked by a spring and firearm having such a system;Magazine for a firearm including a self-contained ammunition counting and display system;Fire control mechanism for an automatic pistol;Firearm with interchangeable mode determinator;Switch actuation mechanism for a firearm-mounted flashlight;Magazine retainer for a hand firearm;Muzzle-loading firearm;Laser sighting system for firearm fore handgrip assembly;Pistol and toy dragon figure assembly;Muzzle-loading firearm;Water-pistol and animal figure assembly;Striker device for a firearm;Firearm use training device and method;Firearm security system and access lock therefor;Firearm rest;Shot cartridge for a muzzle loading firearm and process for loading a muzzle loading firearm;Rib for firearm and method of making a barrel with rib;Method and a system for locating a firearm on the basis of acoustic detection;Hand-held firearm with recoil attenuation;Firearm safety and security device for preventing the theft and firing of a weapon;Optical sight arrangement for a firearm;Ammunition feed system for a medium-calibre firearm;Reduced capacity magazine for repeater firearm;Over-barrel flash guard for use with a muzzle-loading firearm;Integral butt plate with latch and catch mechanisms for pistol magazine;Water-pistol and puppet assembly;Clip magazine for use in feeding rounds of ammunition to a firearm;Firearm grip;Power supply for firearm accessories;Automatic pistol with integral compensator;Device for firing a firearm using an infrared detector;Firearm and accessory kit package;Firearm safeguard device;Firearm accessory concealment holder;Vehicle mounted locking firearm support;Empty/malfunction alarm for a firearm;Automatically disabled firearm;Safety and/or dismantling device for a firearm and the like;Firearm with modified take down latch for controlling laser sight;Firearm magazine;Firearm safety and security device;Firearm locking device with motion sensor and alarm;Double thumb strap for pistol holster;Augmented service pistol and ammunition weapons system;Firearm with gas-escape port;Locking assembly and method for a firearm;Breech mechanism for a firearm, especially a repeater weapon;Receiver for firearm;Firearm security device;Gas-operated M16 pistol;Firearm having improved safety and accuracy features;Combined water pistol and scoring target;Cushion for use with a firearm;Apparatus for laser assisted firearm sights alignment;Firearm having improved safety and accuracy features;Magazine-type firearm;Firearm cartridge with pre-pressurizing charge;Reaction time enhancer for training firearm aiming;Tool for loading and unloading cartridges from a firearm magazine;Adjustable firearm handle;Firearm security system and access lock therefor;Staggered camming machanism for a firearm;Inertia driven striker for a firearm;Firearm bipod;Muzzle loading firearm ignition system;Firearm leveling device;Firearm with gas operated recharge mechanism;Device and process for monitoring the number of movements of at least one movable part of a firearm;Safety trigger for a firearm;Ammunition for simulated firearm;Toy weapon pistol;Device for preventing accidental discharging of a bullet from a firearm;Microcomputer device with triangulation rangefinder for firearm trajectory compensation;Firearm inspection device;Vehicle mounted locking firearm support;Low-recoil firearm;Firearm training system and method;Method of reducing the muzzle noise of firearms and firearm of reduced muzzle noise;Firearm, particularly handgun;Trigger guard for a firearm;Firearm safety system;Magazine for rapid shot firearm and firearm;Discreet pistol pouch;Firearm locking device;Trigger guard alarm for a firearm;Protective pads for a firearm;Firearm with plastic material;Combined cartridge magazine and power supply for a firearm;Locating spring and plunger assembly for a firearm;Firearm safety device;Breech mechanism for a firearm especially a repeater weapon;Firearm having improved safety and accuracy features;Recoiling toy pistol with cocking and firing sound;Concealable pistol holder;Simulated firearm;Firearm tool;Firing pin arrangement in a firearm;Firearm especially hunting rifle with exchangeable barrel, and modular system for such a firearm;Firearm sights aligner;Dual cylinder revolver;Firearm;Device that displays count of rounds in firearm magazines;Trigger guard for a firearm;Semi-automatic firearm having a safety device preventing conversion to full automatic firing;Revolver hand grip;Pistol sighting device;Pistol;Flagged firearm lock method and apparatus; Small firearm with receiver;Secondary recoil absorption mechanism for use on a firearm;Firearm support with seat;Cartridge monitoring and display system for a firearm;Draw bar firearm lock;Insta-guard firearm protection;Firearm silencer and flash attenuator;Self-actuating blow forward firearm;Firearm with separable radiation emitting attachment;Thumb release for pistol magazine;Firearm safety mechanism;Firearm safety;Firearm with piezo-electric triggering and firing mechanism;Firearm safety lock;Swivel assembly for firearm;Electrically-fired and magnetically actuated firearm;Method and apparatus for attaching an auxiliary aiming device to a semi-automatic pistol;Rolling supports for trigger and firing pin assemblies in a firearm;Trigger assembly for a firearm;Firearm holster locking apparatus and method;Front grip for a firearm;Semi-automatic pistol safety lock apparatus;Automatic firearm;Trigger safety for a firearm;Firearm with noise suppressor;Firearm holding apparatus;Firearm with movable barrel safety;Firearm locking system;Firearm lock;Firearm loading lockout device;Cartridge monitoring and display system for a firearm;Apparatus for boresighting a firearm;Musical cymbal support and revolver accessories;Firearm safety mechanism;Semi-automatic pistol magazine;Self cleaning automatic machine pistol and silencer for the same;High chamber pressure pistol;Adjustable automatic firearm recoil system;Revolver safety lock apparatus;Automatic firearm;Device for rapidly loading rimmed cartridges into large capacity firearm magazines;Firearm safety system and method;Firearm equipped with live round inhibiting means and method of making same;Adjustable holster for pistol type power tools;Self-loading pistol;Rotary chamber automatic pistol;Reinforced firearm stock;High volume automatic and semi-automatic firearm;Portable firearm rest;Firearm with detachable barrel;Pistol with an interchangeable barrel;Increased capacity magazine for firearm;Training round for firearm;Machine-pistol for cartridges of different types;Automatic firearm;Recoil locking system for a firearm;Fast cartridge loader for firearm magazines;Gunsight mounting device for a revolver;Firearm recovery bag;Press fit gun cradle for firearm maintenance and repair;Firearm;Pistol brace;Firearm;Firearm hammer construction;Blank firing firearm recoil mechanism;Multipurpose repeating firearm having alternate firing mechanisms;Device for adjusting the trigger weight of a revolver;Dually-adjustable firearm muzzle attachment device;Firearm;Umbrella with pistol-shaped handle and trigger-activated opening device;Magazine locking means for firearms having a magazine in a pistol grip;Foldable stock extension for firearm;Decocking mechanism for pistol with automatic firing pin safety;Firearm magazine and method for preventing the shells from jamming;Holster for pistol;Firearm with flashlight locator;Carrier assembly for compound bow or firearm;Device for limiting the field of fire in elevation on an automatic firearm;Firearm safety release warning indicator;Pistol grip with a collapsible stabilizing wing;Firing pin safety lock for an automatic firearm;Firearm with foreign matter receiving cavities;Firearm;Semi-automatic pistol;Gas pressure adjusting device in gas-operated auto-loading firearm;Revolver with firing order indicator notches;Chamber indicator for a revolver or a hand-held gun;Firing mechanism for firearm;Firing simulator for practicing aiming with a firearm;Safety system for disabling a firearm;Retrofit firearm;Repeating rubber band pistol;Weapon firearm with magazine;Sighting device for firearm with correction of target lateral movement;Stock assembly for firearm;Revolver with reduced backlash moment;Obturation in a firearm;Firearm for firing ammunition of different caliber;Singulating apparatus for a semiautomatic firearm;Firearm with tiltable barrel;Firearm with automatic ejection;Automatic hand firearm with rigidly locked breech for ammunition with extremely high projectile momentum;Adjustable firearm stabilizer;Firearm magazine and magazine loader;Firearm construction;Self-loading pistol in the form of a mechanically locked recoil loader;Sound suppressor for a firearm;Toy laser pistol;Holder for a magazine for a firearm;Mount for attaching a device to a firearm;Machine pistol with retarded blowback;Automatic hand firearm;Automatic firearm;Safety system for disabling a firearm;Automatic firearm;Two-barrel revolver-type firearm;Low-recoil firearm with noncircular guide rod for angularly locating bolt carrier assembly;Repeating firearm trigger mechanism;Handgun of the revolver type;Mount for attaching a device to a firearm;Butt plate construction of a firearm and in particular that of a shotgun;Firearm magazine lock;Apparatus and method for boresighting a firearm;Firearm with interchangeable barrels;Sound dampened automatic hand firearm;Firearm trigger mechanism;Silenced hand-held firearm with rotating tube and sleeve;Auxiliary trigger for firearm;Muzzle ejecting sabot cartridge firearm system;Firearm safety device;Mount for attaching a device to a firearm;Pivotal pistol grip firing mechanism;Concealable firearm;Method of making bullet for a firearm;Operating lever for the block and hammer of a self-loading hand firearm;Firearm safety with alarm;Competition firearm;Revolver safety lock;Trigger for an automatic firearm having a linear action breech block;Firearm safety lock;Automatic or semi-automatic firearm;Bolt latch for bolt-action firearm;Revolver type firearms;Pistol maintenance device;Revolver;Open bolt firing mechanism for automatic firearm;Firearm, particularly a rifle;Repeating firearm;Pistol and removable cartridge shaped barrel insert;Device for speed control of cylinder piston, particularly useful for a firearm;Gas operated firearm;Pistol grip;Cartridge load for a revolver;Recoil and counter recoil mechanism for a firearm;Muzzle attachment for a firearm barrel;Firing pin block for firearm with a rotary breech bolt;Firearm magazine lock;Firing mechanism for single action firearm;Convertible firearm-airgun;Automatic hand firearm;Firearm magazine;Semi-automatic firearm;Firing pin block for firearm having a reciprocating breech bolt;Revolver crane barrel extender and alignment tool;Manually cycled pistol;Pistol sight base bridge;Loader for machine-pistol and similar;Submachine gun having a pistol grip 360 degrees rotative about the barrel;Firing mechanism for single action firearm;Handheld firearm adapted for dispensing debilitating chemical repellants;Laser beam firearm aim assisting methods and apparatus;Pistol;Safety device for a pistol;Safety mechanism for a firearm;Firearm barrel, shroud construction;Retaining and adjusting device for the pistol grip of a fire arm;Rotary action firearm safety assembly operable with finger on the trigger;Firearm with interchangeable barrels and ammunition cylinders;Automatic firearm construction;Firearm with interchangeable barrels and ammunition cylinders;Safety for an automatic pistol;Pistol with stock extension and auxiliary grip;Cartridge load for a revolver;Aiming device for a firearm;Firearm;Firearm training device;Firearm with recoil movement delaying mechanism;Firearm;Firearm;Pistol holster;Firearm trigger guard assembly;Firearm hanger;Firearm alignment and support apparatus;Cross bow pistol;Firearm cartridge receiver;One piece hand grip for pistol;Ejector assembly for a firearm adapter;Projectile for centerfire pistol and revolver cartridges;Method of and device for loading a firearm;Firearm having two or more barrels;Firearm barrels and projectiles;Semi-automatic firearm;Ammunition for a toy pistol;Hammer action of a revolver;Spring support in a compressed air firearm;Device for reducing firearm recoil;Revolver-type repeating gun;Manually cycled pistol;Recoil assembly for a firearm adapter;Loading device for a firearm;Self-loading pistol;Revolver-type hand gun;Automatic bolt catch release apparatus for firearm;Supply device for a portable firearm by means of cartridge belts or by means of rifle magazines using the same ammunition;Open-top holster for revolver;Device for firearm intended for tank which has a barrel supported in a recoil jacket;Muzzle loading firearm;Pistol adapted for dispensing debilitating chemical repellants;Tank equipped with large-calibre firearm;Firearm and magazine construction;Magazine specially intended for tank with large-calibre firearm;Firearm;Firearm construction having mechanical means for the ejection of misfired cartridges;Automatic or semi-automatic firearm;Portable firearm with a retractable barrel;Safety system for firearm;Rotatable cartridge chamber for firearm type weapon;Gas locked firearm;Gas operated firearm with metering adjustment;Hydraulic buffer assembly for automatic or semiautomatic firearm;Firearm with accurizing means;Safety mechanism for a firearm;Firearm construction, particularly a compact hand firearm;Firearm with muzzle and smooth-bore barrel for firing finned projectiles;Trigger for selectively discharging simultaneously any number of barrels on a multiple-barrelled firearm;Cartridge chamber for automatic firearm;Firing mechanism for firearm apparatus;Recoil operated firearm with unitary barrel and breech bolt lock member;Firearm having two pivoted props;Sighting means of a firearm