Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7854082 | Device for opening and closing rolling block firearms An opening and closing device, associated with the rolling block and receiver of a hunting or sports gun, comprises a key that is hinged by a tube to the upper part of the rolling block, and a bolt that is actuated by a shaped end of the key and is slidably mounted ... | 12/21/2010 |
| 7313882 | Hold adjustment device between fore-end iron and action body in a break-open firearm A hold adjustment device between fore-end iron and action body in a break-open firearm comprising at least one barrel (13) mobile by rotation about a fixed hinging point (15) arranged on an action body (14) between an aligned closed position and... | 01/01/2008 |
| 7059032 | Door hinge repair apparatus and method Apparatus for use in repairing, and methods of repairing, a door hinge of a vehicle includes use of a substitute hinge bracket and at least one pin configured to be received through at least one opening of a vehicle frame bracket. A locking portion of the at least o... | 06/13/2006 |
| 7012169 | Disposable finger sleeve for appendages A device that can be used to treat appendage ailments is provided. The device, or appendage sleeve, can be used for wounds, cuts, and blisters, as well as joint related ailments, such as arthritis and carpal tunnel syndrome. In some instances, the appendage sleeve c... | 03/14/2006 |
| 6996930 | Retractable face safety for a firearm An improved muzzleloading firearm having a novel safety system. The safety system utilizes a spool coupled to a compression spring to maintain an ignition system such as a primer out of potential contact with a firing pin, even in the event of unintentional actuatio... | 02/14/2006 |
| 6993864 | Locking block for compact semi-automatic pistols A locking block mechanism for a compact semiautomatic pistol includes a pair of forward guide rails, which are normally separate from the locking block. Additionally, the locking block includes transverse ribs on the sides of the locking block, which engage mating s... | 02/07/2006 |
| 6907687 | Over-and-under shotgun apparatus and method An over-and-under shotgun apparatus includes a radius track which serves as a hinge for articulating the barrel portion of the shotgun apparatus relative to the receiver/stock portion of the shotgun apparatus. The radius track is defined by a female or concave porti... | 06/21/2005 |
| 6820361 | Break-action firearm A break-action firearm with a breech housing, a barrel section that can pivot about a hinge bearing on the breech housing, and a removable fore-end, which contains on its front end a locking mechanism and on its rear end a bearing section for pivoting connection to ... | 11/23/2004 |
| 6655065 | Barrel catch mechanism A barrel catch mechanism particularly suited to small hinged barrel handguns. A transversely slidable locking piece engages a barrel lug. The locking piece has a stud which engages an aperture in the lug. Locking and unlocking is controlled by a spring lo... | 12/02/2003 |
| 6609320 | Breech locking safety bracket for flare launchers A bracket for securing the barrel of a flare launcher to the body of the flare launcher.... | 08/26/2003 |
| 6584718 | Firearm locking mechanism A locking mechanism for a firearm which includes a rod which is threaded at both ends and extends into the bore of a barrel of a firearm and into the firing chamber. At its proximate end, the rod engages a nut which expands the fingers of a collet that en... | 07/01/2003 |
| 6415538 | Breech locking safety bracket for flare launchers A bracket for securing the barrel of a flare launcher to the body of the flare launcher.... | 07/09/2002 |
| 6183894 | Electrocatalyst for alcohol oxidation in fuel cells Binary and ternary electrocatalysts are provided for oxidizing alcohol in a fuel cell. The binary electrocatalyst includes 1) a substrate selected from the group consisting of NiWO4 or CoWO4 or a combination thereof, and 2) Group VII... | 02/06/2001 |
| 5933998 | Break-action shotgun with a device for mass-production interchangeability of the barrels A tensioning device used for achieving mass-production interchangeability of the barrels for a shotgun with articulated barrels is positioned between the barrels and the breech of the gun and comprises a rod-shaped element constituted by a fixed portion a... | 08/10/1999 |
| 5704149 | Hammer for muzzle loader rifle A hammer design for use on various firearms, including specifically muzzle-loading firearms, that is easier to engage, quicker to engage, safer to engage and easily adaptable to handle accessories. The present invention discloses a muzzle loading firearm ... | 01/06/1998 |
| 5680722 | Fire control system for firearms A firearm having a trigger which is pivoted to the frame, a hammer which is pivoted to the frame and biased in a forward position, a barrel which is pivotally mounted on the frame so that the breech end of the barrel can be moved between a closed position... | 10/28/1997 |
| 5664358 | Barrel lock for a hand gun Disclosed is a barrel lock to be removably inserted and reliably locked within the barrel of a hand gun to prevent the accidental and unauthorized firing of the hand gun without requiring any manufacturing changes to the gun. The barrel lock includes an e... | 09/09/1997 |
| 5657567 | Device for coupling and releasing the trigger mechanism in the bascule of guns The present invention pertains to a device for coupling the trigger mechanism in the bascule (10) of guns, which comprises a kinematic mechanism (26, 27, 31) which extends between the locking sliding safety catch (19) of the trigger guard to move the lock... | 08/19/1997 |
| 5649383 | Barrel retaining device for firearms A barrel retaining device for an automatic pistol has a locking element that locks the pistol barrel and breech both of which are guided on the stock of the weapon. In order to remove the breech with the barrel from the stock in order to disassemble the p... | 07/22/1997 |
| 5617665 | Rotating breech gun A break open sporting firearm with one to four barrels that lock up in line directly behind the chambers for strength and rigidity. The load from firing is taken up by two or more circularly spaced lugs in the breech engaging with mating lugs on the frame. A r... | 04/08/1997 |
| 5611164 | Security and deployment assembly A locking assembly for a firearm, such as a semiautomatic or fully automatic pistol, includes a support member with an action locking arm and an action locking lug extending from a first end of the support member and a retainer arm extending from a second... | 03/18/1997 |
| 5467549 | Firearm automatic safety system A break open firearm having an automatic safety system that can be easily converted to a manual safety, combined with a safety barrel selector mechanism that can also be locked in the fire position to always fire a preselected barrel first.... | 11/21/1995 |
| 5421114 | Gun with improved barrel locking means and rebounding hammer An improved gun design is disclosed which includes a highly effective and accurate hammer rebounding mechanism and a safe and efficient locking mechanism for securing the barrel of a breech load gun to the frame. Particularly, the rebounding mechanism enc... | 06/06/1995 |
| 5225610 | One-shot weapons A one-shot weapon includes an external grip, a profiled receiver attached to the grip, and a supporting base hingedly attached to the receiver. A sleeve is connected to the supporting base, and a barrel is disposed in the sleeve. A firing block has a cube... | 07/06/1993 |
| 5165383 | Gun with pivoting barrel, projectile loader, and trigger interlock A gun includes a frame and a pivoting barrel assembly which is releasably latched in a firing position by a pair of flexible and resilient latches on the barrel assembly which engage shoulders on the frame. A trigger is slidably mounted on the frame for m... | 11/24/1992 |
| 5111607 | Resettable breechblock wedges in a break-open firearm with top lever breechblock The fixation of the barrel housing to the breech housing in a break-open gun is controlled by a top lever breechblock, the bottom of which carries, in a groove, countersunk, a connecting member with an eccentric tenon in a displaceable fashion, the tenon ... | 05/12/1992 |
| 5095643 | Handgun with improved receiver lock, hammer mounting, and sight A single shot handgun of the type having a frame, a receiver, a firing chamber in the receiver, a firing pin, a hammer for driving the firing pin, a barrel connected to the receiver being pivotally attached to the frame so that the barrel and receiver can... | 03/17/1992 |
| 4964232 | Single barrel break-action trap shotgun The trap gun stock has a projection which mates snugly with a complementary-shaped depression in the rear end of the receiver and is secured therein by a spring-loaded stock bolt which extends through the stock and screws into a stud on the receiver. A la... | 10/23/1990 |
| 4914845 | Breech load pistol and conversion A breech load pistol and conversion kit which may be adapted to the frame of a semi-automatic pistol, such as a Government 0.45 pistol. The present invention may provide a modified slide which is slidably mounted to the pistol frame and is adapted to incl... | 04/10/1990 |
| 4774929 | Gun with pivoting barrel and lever for retaining barrel in position or permitting barrel to pviot A gun is provided with a pivoting barrel and a cocking and retaining lever which cocks the hammer and retains the barrel in the firing position. When the lever moves to the unlocking position, the barrel is released and the hammer is cocked. When the barr... | 10/04/1988 |
| 4662097 | Trigger operated barrel lock release A firearm has a barrel which is pivotal upwardly and forwardly relative to frame to render a rear of the barrel accessible. A latch mechanism latches the barrel in a closed position and is operable to release the barrel to allow pivoting. The firearm has ... | 05/05/1987 |
| 4646457 | Barrel and interchangeable trigger plate locking device for shot guns An interchangeable trigger device comprising a standard trigger plate, allowing indifferently the mounting of a single selective trigger or of separate triggers. The plate comprises a flat base which can be fitted by pivoting into the opening of the recei... | 03/03/1987 |
| 4597212 | Safety device for guns A safety mechanism for guns having an openable breech. Guns of this type have a manual lever for operating the breech locking mechanism. The invention provides a linkage between this lever and a trigger block member which prevents trigger actuation. As a ... | 07/01/1986 |
| 4574510 | Barrel locking mechanism for break-open-action gun A barrel locking mechanism for a break-open-action gun having a barrel and a mechanical section rotatably engaged with each other by a hinge-pin. It has a lug secured to the barrel and having a delining surface. While a stationary receiver is integrally m... | 03/11/1986 |
| 4276708 | Pistol receiver actuating mechanism An improved trigger guard for a pistol having trigger guard actuated means has an upwardly and rearwardly extending, elongated lever member which facilitates manual actuation of the trigger guard for opening the breech and setting the trigger mechanism an... | 07/07/1981 |
| 4199886 | Guns A gun comprising a stock having a lock housing and a barrel pivotable relative to the lock housing and having a forked member provided with guide grooves engaged by guide ribs on a locking block so that as the gun is opened the grooves slide up the ribs a... | 04/29/1980 |
| 4156980 | Breech opening apparatus for handgun In a handgun having a spring biased breech locking mechanism and pistol grip handle, a breech release device mounted at the butt of the pistol grip handle to provide breech release access without disturbing the grip of the shooter's hand grasp. The device... | 06/05/1979 |
| 4000575 | Means for retraction of lower firing pin of over-and-under firearm Over-and-under firearms of the break-open type have an upper barrel and a lower barrel secured together and pivotally mounted on the frame of the firearm. A top lever is rotatably mounted on the frame for retaining the barrels at their closed position whe... | 01/04/1977 |
| 3971150 | Top lever retaining means for break-open firearms A break-open type firearm having a frame, one or more barrels pivotally mounted on the frame, a barrel lock bolt for releasably locking the barrel at its closed position and a top lever for moving the barrel lock bolt from its barrel locking position to i... | 07/27/1976 |
| 3949507 | Top lock mechanism for break-open firearm A break-open firearm where the frame and the barrel assembly are locked in place by a sliding top lock. A top lock lever is pivotally connected to the gun frame and is operatively connected to the top lock by a helical coil spring which biases the top loc... | 04/13/1976 |
