Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7347022 | Gun and method for assembling a gun A gun comprises a frame and a framework on which at least some components of a firing mechanism are mounted. The framework is inserted into a cross cavity of the frame and means for locking the framework within the frame are provided. The framework holds the whole f... | 03/25/2008 |
| 7340987 | Conversion platform for a .45 ACP pistol A method of modifying a .45 ACP pistol having a slide and a receiver defining a magazine well includes the steps of reducing the size of the magazine well and shortening the slide. The slide includes a breech face and a proximal end and the magazine well includes a ... | 03/11/2008 |
| 7337571 | Slide stop latch for a firearm A camblock assembly with a camblock and a guide rod is employed in a firearm having a frame constructed of synthetic polymer material. The camblock has a front flange with flange surfaces that engage corresponding bearing surfaces of the frame to distribute forces a... | 03/04/2008 |
| 7337574 | Frame for a firearm A firearm frame which is adapted to be disposed in operative relationship as a component part of a firearm, the firearm having disposed in operative relationships each with one or more of the others, a barrel, a receiver, and at least one firing mechanism; wherein t... | 03/04/2008 |
| 7322143 | Semiautomatic handgun A semiautomatic handgun has a frame, a barrel mounted on the frame and having a chamber for receiving a cartridge, a slide mounted on the frame and over the barrel and longitudinally movable relative to the frame and the barrel, a firing mechanism for striking the c... | 01/29/2008 |
| 7302773 | Method of firing of firearms A method of firing of arms which utilizes both action and reaction forces in the process of firing. The action force propels the projectile (14) while the opposite in direction reaction force is used with an independent freely moving inert mass (20) in... | 12/04/2007 |
| 7228780 | Handgun with two-sided breechblock mechanism A handgun, particularly an automatic pistol, with a grip piece, a breech that can be longitudinally displaced relative to the grip piece, and a breechblock mechanism that can be actuated on both sides and serves for holding the breech in its open position. The breec... | 06/12/2007 |
| 7140141 | Apparatus and method for removing the slide of a semi-automatic pistol A semi-automatic firearm includes a frame and a movable slide mounted on the frame. The slide defines an ejection port and lateral walls that extend longitudinally from a rear face of the slide to adjacent a front face through which an opening is formed to permit eg... | 11/28/2006 |
| 7121035 | Sight-preserving, partially self-cleaning, divergent-axis caliber conversion in handguns A conversion kit for converting a semi-automatic or self-loading handgun of a certain caliber, such as a Colt .45, is modified to allow the use therein of cartridges of a different, usually smaller caliber, thus to allow less expensive training on the handgun, where... | 10/17/2006 |
| 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 |
| 6994011 | Firearm safety device A firearm safety device for installation into an otherwise functional firearm for disabling the firearm with respect to chambering and firing a round of ammunition and thereby enabling the firearm to be used as a training firearm. The functional firearm includes, am... | 02/07/2006 |
| 6968770 | Firearm safety device A firearm safety device for installation into an otherwise functional firearm for disabling the firearm with respect to chambering and firing a round of ammunition and thereby enabling the firearm to be used as a training firearm. The functional firearm includes, am... | 11/29/2005 |
| 6907814 | Automatic firearms with a detachable breech lock Firearm(s) with a breech lock are disclosed. One such firearm includes a first pivoting lever which, when actuated, releases the breech lock and a second lever, which when actuated also releases the breech lock. The first and second levers are located on opposite si... | 06/21/2005 |
| 6901689 | Firearm pneumatic counter-recoil modulator and airgun thrust-adjustor An inexpensive generally retrofitable drop-in cartridge-unit of light-weight pneumatic-cylinder design for replacing the conventional metal/compression-spring member housed within the frame of a gun, thereby providing significantly smoother, quiter, more rapid, and ... | 06/07/2005 |
| 6718680 | Semiautomatic handgun having multiple safeties A semiautomatic handgun having multiple safeties includes a body made in two halves and a slide which can move lengthwise on a pair of rails. The hammer is cocked by rearward movement of the slide. The trigger, which has purely translation motion, is blocked from be... | 04/13/2004 |
| 6442882 | Cartridge ejection mechanism for converted automatic pistol An automatic pistol converted to fire low energy ammunition in a blow-back mode has a replacement barrel that carries a cam on its upper surface. The weapon slide, as it retires during firing, contacts the cam and rotates the chamber end of the replacemen... | 09/03/2002 |
| 6363831 | Device for locking a tilting barrel of a pistol This invention concerns a closing device for the barrel in semiautomatic and automatic pistols. The barrel (22) is equipped, in its lower rear part, with first lateral means (31) for interacting with the first complementary devices (28) at the sides of th... | 04/02/2002 |
| 6318231 | Semi-automatic pistol barrel with precision barrel muzzle bushings and method A barrel bushing for a semi-automatic pistol. The barrel bushing defines a bore for receiving a barrel therein for reciprocating movement during operation of the pistol. The improvement to the barrel bushing comprises first, second and third annular beari... | 11/20/2001 |
| 6276252 | Ammunition chambering mechanism for automatic firearms A training barrel for conversion of a firearm from normal barrel/slide partial locking operation to unlocked slide blow-back operation has an insert which provides a guide ramp for chambering rounds during the reload cycle. The guide ramp compensates for ... | 08/21/2001 |
| 6212991 | Rapid fire mechanism for firearms The invention provides an apparatus for reducing recoil on a firearm or gun and to increase rate of firing. The invention uses a dual mass system to dynamically balance the gun wherein some of the energy of firing is absorbed within springs and thereby re... | 04/10/2001 |
| 5969285 | Drop-in barrel for recoil operated pistols A drop-in barrel is provided that utilizes an extended locking recess and a spring clip retained within the locking recess to reduce the engagement tolerance between the slide and barrel of a recoil pistol, thereby achieving the performance necessary for ... | 10/19/1999 |
| 5955696 | Semi-automatic pistol having easy action cocking mechanism This invention discloses a semi-automatic pistol including a frame having a chamber for loading a cartridge, a barrel through which cartridges are fired, a slide normally in a forward position on the frame but movable rearwardly of the frame by the recoil... | 09/21/1999 |
| 5952602 | Precision device for hand guns A precision device for semiautomatic handguns, of the type that includes a single block barrel and recoil obturator carriage (11,12), where the barrel is susceptible to axial movement relative to the obturator carriage. On a cylindrical section (16) of th... | 09/14/1999 |
| 5808229 | Non-tilt barrel for a semi-automatic handgun An improved non-tilt barrel for converting a conventional semi-automatic weapon from having a pivoting linkage between the barrel and the receiver to a weapon having a cam in order to reduce the recoil of the weapon and to increase the accuracy of the wea... | 09/15/1998 |
| 5734120 | Firearm locking mechanism A self-loading firearm operating on the short-recoil principle which comprises a frame having a handgrip and adapted to receive a magazine. A breech block slide is mounted for alternating longitudinal movement along the frame. A barrel is provided which i... | 03/31/1998 |
| 5678340 | Cartridge extractor A semi-automatic breech locking pistol having a frame and an operating slide supported for reciprocal movement on the frame between battery and retired positions. An extractor supported for limited pivotal and lateral movement relative to the slide cooper... | 10/21/1997 |
| 5675106 | Blank firing conversions for semiautomatic pistols An automatic pistol adapted to repetitively fire blank ammunition includes a frame, a barrel unit supported by the frame and a slide unit reciprocally mounted on the frame between the forward and rear position. The barrel unit and/or frame incorporate str... | 10/07/1997 |
| 5654519 | Automatic pistol An automatic pistol, with at least a barrel (1) and a slide (2) that move relative to the rest of the firearm and to each other, whereby the barrel extends through an alignment channel (3) in the slide. The weapon included means (4) of centering the barre... | 08/05/1997 |
| 5581046 | Hand-held firearm with recoil attenuation The invention discloses a hand-held firearm with a barrel assembly (2, 18, 36, & 54) moving back and forth essentially in or opposite the direction the weapon is fired in between a forward and a rear stop (44, 48, & 50) on or in a frame or grip assembly (... | 12/03/1996 |
| 5513550 | Firearm with pivoting barrel A firearm for firing cartridges (2) which may in at least one embodiment fire caseless cartridges (2), having a barrel (1) pivoting around a pivot point (11) from a firing position to a loading position, and back to the firing position. A fixed wall (16) ... | 05/07/1996 |
| 5501135 | Precision mechanism for handguns The present invention pertains to a precision mechanism for guns, in which the barrel of the gun has a threaded end section and a cylindrical section on the outside, and in which an alignment bushing, which has an outer conical surface with a conicity cor... | 03/26/1996 |
| 5433134 | Blank firing conversions for semiautomatic pistols An automatic pistol for repetitively firing blank ammunition includes a frame, a barrel unit including a barrel chamber portion and a barrel element extending from the barrel chamber portion, and a slide mounted on the frame and reciprocally longitudinall... | 07/18/1995 |
| 5425300 | Magazine-type firearm A firearm has a frame, a magazine fitted in the frame and holding a plurality of cartridges including a top cartridge, a slide displaceable longitudinally on the frame above the magazine and its top cartridge along a longitudinal slide axis between a fron... | 06/20/1995 |
| 5415075 | Staggered camming machanism for a firearm A firearm having a moveable breech locking barrel supported on a receiver by an offset barrel cam lug which cooperates with a wall of the receiver to provide space between the lug and the receiver wall to receive therebetween portions of a trigger and an ... | 05/16/1995 |
| 5317951 | Cartridge non-ramping feed mechanism for firearms A cartridge soft feed mechanism for presenting the cartridge to the chamber of a gun in such a way that the axis of the cartridge experiences no lateral or angular movement during chambering. The cartridge is telescoped into the chamber without ramping, r... | 06/07/1994 |
| 5309815 | Firearm, particularly handgun Locked automatic pistol in connection with which the recoil-produced delivery of momentum of the barrel (2) is buffered.... | 05/10/1994 |
| 5129172 | Slide safety stop for pistols and other small arms A safety stop for small arms having a slide, which keeps a catastrophic fure of the slide from causing shooter injury is disclosed. An improvement in the ejector and slide permit them to function together as a safety stop to prevent a broken slide from c... | 07/14/1992 |
| 5123328 | Firearm barrel with nozzles A group of upwardly directed ports disposed in a barrel of a hand held firearm intermediate the chamber and the muzzle of the firearm vent propellant gasses upwardly upon discharge of the firearm to produce a downwardly directed component of thrust to cou... | 06/23/1992 |
| 5050480 | Trigger assembly for a firearm The safety of semi-automatic pistols and like firearms is improved by making them double action only combined with novel features that include use of roller bearings for support of trigger and sear assemblies, structuring them for constant pressure trigge... | 09/24/1991 |
| 5024139 | Firearm with movable barrel safety The safety of semi-automatic pistols and like firearms is improved by making them double action only combined with novel features that include use of roller bearings for support of trigger and sear assemblies, structuring them for constant pressure trigge... | 06/18/1991 |
