William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 5461812 | Method and apparatus for a weapon firing safety system This invention teaches a novel method of safeguarding and protecting a weapon from being accidentally fired or misused by an unauthorized person. Without a verified pre-registration signal, an arming safety solenoid remains in a fail-safe position, preven... | 10/31/1995 |
| 5448847 | Weapon lock and target authenticating apparatus A lock and target authentication apparatus for handguns and rifles. The apparatus is designed to fit into handgrips that replace the factory provided handgrips. Flexible membrane circuitry is contained within the handgrips as well as the power source for ... | 09/12/1995 |
| 5433028 | Gun's trigger locking mechanism This device selectively locks the trigger of a firearm by the action of a hollow pin that, pushed by a spring, fits inside a cavity made at the bottom of the trigger. This hollow pin is welded to a flat steel bar that fits along a groove inside the horizo... | 07/18/1995 |
| 5417000 | Handgun lock and alarm means A handgun lock and alarm device including a lock body having a movable jaw portion pivotally mounted on the lock body and a fixed jaw portion, with the movable jaw portion and the fixed jaw portion defining a socket for engaging a trigger guard and shield... | 05/23/1995 |
| 5402593 | Safety trigger for a firearm A two-piece safety trigger for a handgun or pistol fabricated from high impact polymer is provided in which a lower portion comprising approximately the entire lower half of the trigger face is pivotable relative to the upper portion. The lower trigger po... | 04/04/1995 |
| 5400538 | Firearm trigger lock A trigger lock for firearms wherein a pair of discs loosely connected together by a flexible band are adapted to be positioned one on each side of the trigger guard of a firearm. When pushed towards each other, a pair of tapered spring detent arms fixed t... | 03/28/1995 |
| 5392552 | Lighted locks for firearms An electronic firearm lock (10) includes a housing (18) and a locking plate (28) which are locked together rendering the trigger (12) of a firearm (16) inaccessible. The housing (18) includes a locking lever (36) which engages a sawtooth surface (34) of t... | 02/28/1995 |
| 5361525 | Gun safety lock An improved gun safety lock is disclosed which employs a barrel key to enable the firing mechanism of the gun. The barrel key is inserted in the handle of the gun to allow the hammer of the weapon to be moved into a cocked or firing position. The barrel k... | 11/08/1994 |
| 5355768 | Automatic pistol with select fire mechanism A select fire automatic pistol comprising: a frame; a slide with a breech-block in the rear which slides on the frame over the barrel to form a cartridge receiving chamber; a floating barrel in the slide having a cartridge receiving rear; a trigger safety... | 10/18/1994 |
| 5341732 | Impeller gun safety trigger mechanism A trigger gun to impart a stamp member in engagement with a face to permit identification of an associated workpiece is provided, wherein a trigger safety mechanism is arranged to provide for selective release of a first trigger upon pivoting of a second ... | 08/30/1994 |
| 5283971 | Trigger guard alarm for a firearm A trigger guard alarm system for a firearm which comprises a trigger locking device and a means for generating an alarm to indicate unauthorized removal of the trigger locking device. The alarm system is on the trigger lock and is activated by placing the... | 02/08/1994 |
| 5206445 | Projection devices A projection device for firing e.g. a squash ball comprises a one-piece plastics body with a transverse bore in which a trigger plunger is seated. The squash ball seats in a flaring muzzle cavity at the front end of the body. A blank cartridge is loaded i... | 04/27/1993 |
| 5168114 | Automatic gun safety device An automatic gun safety device is provided which consists of a mechanism for transmitting radio signals. Another mechanism is built into a firearm for receiving the radio signals. A solenoid is electrically connected to the receiving mechanism and is norm... | 12/01/1992 |
| 5146705 | Trigger and safety An auxiliary weapon, such as a grenade launcher, is mounted on a main weapon, such as a rifle. The trigger member of the auxiliary weapon includes a pivotal extension that may be moved to a locked position to retain the safety in its on position. The exte... | 09/15/1992 |
| 5123193 | Magnetic actuated firearms locking mechanism for shoulder mountable weapons This invention teaches a safety device for preventing unauthorized firing of a weapon (H) of the type having a trigger (19) and mechanical firing mechanism (21) for firing the weapon. A solenoid (S) controllably actuates or deactuates upon the application... | 06/23/1992 |
| 5067266 | Hammer safety mechanism A lever action rifle having a breech bolt, an exposed hammer moveable between cocked and striking positions, an operating lever supported for movement between inactive and cocking and loading position for opening and closing the breech bolt and moving the... | 11/26/1991 |
| 5048212 | Firearm lock assembly A firearm lock assembly includes a trigger blocking element and a cable lock which passes through the receiver to secure the breech bolt of the firearm in an open condition and which cooperates with the trigger blocking element to lock the trigger in a di... | 09/17/1991 |
| 5038507 | Industrial shotgun An industrial shotgun is provided with a pistol type hand grip assembly, a remote trigger mechanism, and a hanging support bracket at approximately the center of mass of the industrial gun. The remote trigger mechanism includes a remote trigger coupled fr... | 08/13/1991 |
| 5025582 | External safety for handgun An external safety for application to handguns which effectively blocks rearward travel of the trigger to the point where the handgun is discharged, the external safety consisting of a trigger block adapted to be pivoted into the path of the trigger, and ... | 06/25/1991 |
| 5016378 | Firearm safety apparatus An apparatus including an illumination member cooperative with a mechanical bolt, whereupon in a lowered position the apparatus effects blockage of an associated trigger of the firearm within the firearm mechanism while in a raised second position and eff... | 05/21/1991 |
| 5016376 | Magnetic actuated firearms locking mechanism This invention teaches a safety for preventing unauthorized firing of a weapon (H) of the type having a trigger (19) and mechanical firing mechanism (21) for firing the weapon. A solenoid (S) controllably actuates or deactuates upon the application of an ... | 05/21/1991 |
| 4986019 | Industrial shotgun An industrial shotgun is provided with a pistol type hand grip assembly, a remote trigger mechanism, and a hanging support bracket at approximately the center of mass of the industrial gun. The remote trigger mechanism includes a remote trigger coupled fr... | 01/22/1991 |
| 4962605 | Firearm provided with an improved trigger mechanism A firearm, particularly a piston, is provided with a trigger mechanism, which comprises a spring-loaded trigger rod, a trigger for moving the trigger rod, and locking means for preventing a movement of the trigger rod other than by an operation of the tri... | 10/16/1990 |
| 4926575 | Gun grip emblem manual safety A manually actuated safety mechanism for a hand gun particularly of the type incorporating a rebound slide which is activated by a small hinged pin mounted on the trigger assembly to force the rebound slide back. The rebound slide has a small indentation ... | 05/22/1990 |
| 4897951 | Firearm safety A firearm safety for a firearm comprises a bracket mounted at the underside of the receiver. The bracket defines a pair of recesses for receiving detent shoulders of an operator arm. The bracket is spring-biased to permit the operator arm to be manually p... | 02/06/1990 |
| 4841656 | Sliding safety mechanism for projectile weapons A safety mechanism for a projectile weapon includes a stop means such as a lever pivotally mounted to prevent the movement of the trigger to a position enabling the weapon to be discharged. A biasing means such as a spring is also attached to the lever to... | 06/27/1989 |
| 4811511 | Device for rapidly engaging and disengaging the trigger mechanism in the breech of a gun Disclosed is a device for the rapid engagement and disengagement of the monotrigger mechanism in the breech of a double-barrelled gun. A hook is integrally provided in the underguard that carries the monotrigger mechanism. An oscillating lever, pivoting i... | 03/14/1989 |
| 4754568 | Rotating safety mechanism for projectile weapons A safety mechanism for projectile weapons includes a stop means mounted to prevent the movement of the trigger and/or hammer to a position enabling the weapon to be fired. The stop means includes a generally cylindrical pin having one end extending throug... | 07/05/1988 |
| 4719713 | Trigger safety status signaling device A firearm trigger safety status signaling device includes electrically energizable audio and light signals that are mounted to a component of the trigger mechanism itself for actuation in response to movements of the trigger safety.... | 01/19/1988 |
| 4689912 | Hand-held high-velocity grenade launcher A hand-held, single-shot grenade launcher including a receiver and attached stocks for both hands, a barrel slidable in the receiver, an assembly of Belleville springs for absorbing recoil and a breech connected to the end of the barrel. A grenade round i... | 09/01/1987 |
| 4680884 | Safety firearm mechanism A firearm mechanism having an external hammer manually moved to a cocked position with a transfer bar moving into position between the hammer and firing pin to transfer impact of the hammer to the firing pin with the improvement in this invention includin... | 07/21/1987 |
| 4677781 | Retrofit firearm A proven sporting type shotgun with the stock removed therefrom converted to a military combat type weapon by addition of a retrofit assembly which includes a retrofit housing containing the trigger of the basic sporting shotgun and at least a portion of ... | 07/07/1987 |
| 4628626 | Safety mechanism for firearms A safety mechanism for firearms includes a stop means such as a pin mounted to prevent the movement of the trigger and/or the hammer to a position enabling the firearm to be fired. The pin is pivotally mounted for movement to either side of the firearm to... | 12/16/1986 |
| 4621445 | Weapon with locking trigger A revolver having a trigger and a hammer which are each pivotally journaled in the weapon frame. When the hammer is brought into its tensioned position, it moves the trigger into the ready-to-fire position in which the trigger arrests the hammer in the te... | 11/11/1986 |
| 4569145 | Inactivating selector arrangement for bolt action firearms An inactivating selector arrangement for a bolt action firearm for inactivating the sear and trigger and for inactivating the bolt. The multiposition selector is rotatable to a first position to restrain the sear-trigger; to a second position to restrain ... | 02/11/1986 |
| 4475437 | Sear actuator A sear actuator has a rotatable cylinder (770) mounted between opposing side walls of the receiver (1) and a slidable rod (771) extending transversely to the cylinder. The actuator is arranged so that in one position the trigger applies a rotating force t... | 10/09/1984 |
| 4392320 | Trigger retaining and stabilizing means The trigger of a handgun is retained and stabilized for longitudinal sliding movement between ready and firing positions within an upwardly opening guideway in the gun frame by longitudinally spaced apart lugs which project from the trigger into a guide t... | 07/12/1983 |
| 4391058 | Trigger and firing mechanism for bolt action rifle A bolt action firearm having novel trigger and firing mechanism associated with the bolt. A firing pin is located in a bore extending from the head end of the bolt a distance slightly greater than the length of the firing pin. A cammed notch extending fro... | 07/05/1983 |
| 4322906 | Trigger mechanism for automatic and semiautomatic firearms of any type A trigger mechanism for semi-automatic and automatic firearms is provided which comprises a hammer having a release dog and a trigger having a stop dog for the cocking and safety positions assumed by the trigger during the various steps of operation of th... | 04/06/1982 |
| 4300301 | Rotary action firearm safety assembly operable with finger on the trigger This invention provides a readily accessible easily manipulatable improved safety assembly for a firearm that can be easily retrofit on many existing firearms without special modification or adaption. By providing rotary action from a finger actuated safe... | 11/17/1981 |