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 |
| 8171840 | Firearm silencer and methods for manufacturing and fastening a silencer onto a firearm A firearm suppressor includes a hollow outer can having an interior-threaded proximal end and a radially closed distal end with a bore, a barrel nut having a barrel bore and an outer-threaded distal threading to the can, and a baffle. The baffle has an intermediate ... | 05/08/2012 |
| 8096222 | Asymmetric firearm silencer with coaxial elements The present invention relates to a silencer for reducing muzzle blast and noise of firearms or similar devices. The present silencer has a hollow cylindrical or other shape casing comprising front and rear end caps and an opening aligned along a longitudinal axis de... | 01/17/2012 |
| 8087338 | Firearm suppressor with slip and capacitance chambers A firearm noise suppressor having an internal base frame member with a plurality of inserts mounted thereto. In one form the suppressor is provided with a slip chamber allowing gas to be forwarded to a longitudinally forward chamber for pre-compression of gas therei... | 01/03/2012 |
| 8047115 | Flash suppression system A flash suppression system for increasing the reliability of an autoloading firearm has a body having a central bore including the front opening and a rear opening. The rear opening of the body terminates in a conical feature having a front opening and a rear openin... | 11/01/2011 |
| 8015908 | Firearm silencer and methods for manufacturing and fastening a silencer onto a firearm A firearm suppressor includes a unitary, hollow outer can and a monolithic extruded baffle. The outer can has an interior-threaded proximal end and a radially closed distal end with a longitudinal bore opening the interior of the can to the environment. The monolith... | 09/13/2011 |
| 7891282 | Booster for handgun silencers A booster apparatus that is to be used with an autoloading handgun is provided. The proposed novel device utilizes a piston with five spokes which are secured against rotational movement by interfacing with five of ten indexing notches that are machined on the stopp... | 02/22/2011 |
| 7874238 | Asymmetric firearm silencer with coaxial elements The present invention relates to a silencer for reducing muzzle blast and noise of firearms or similar devices. The present silencer has a hollow cylindrical or other shape casing comprising front and rear end caps and an opening aligned along a longitudinal axis de... | 01/25/2011 |
| 7856914 | Noise suppressor A device for suppressing noise from a firearm. In one aspect, the suppressor has an elongate body that defines a bullet pathway extending longitudinally therethrough. The elongate body may define a plurality of adjacent chambers spaced along its longitudinal axis. T... | 12/28/2010 |
| 7836809 | Flash suppression system A flash suppression system for increasing the reliability of an autoloading firearm has a body having a central bore including the front opening and a rear opening. The rear opening of the body terminates in a expansion feature having a front opening and a rear open... | 11/23/2010 |
| 7832323 | Firearm suppressor A suppressor for use with a firearm having a barrel with a muzzle and a bore, the suppressor includes an outer casing having a rearward end and a forward end, an evacuator assembly for receiving the muzzle of the firearm carried by the outer casing, and an expansion... | 11/16/2010 |
| 7789008 | Energy suppressors A suppressor for a firearm includes a first gas expansion section of relatively large size sufficient to reduce the temperature and pressure of the gas expelled from a muzzle during discharge of the firearm to a level that avoids rapid degrading of structural member... | 09/07/2010 |
| 7789009 | Omni indexing mount primarily for attaching a noise suppressor or other auxiliary device to a firearm An apparatus and method for easily, and reliably attaching a noise suppressor or other auxiliary device to a standard A2 flash compensator typically located at the muzzle end of a firearm barrel and for easily, and reliably removing the noise suppressor or other aux... | 09/07/2010 |
| 7743693 | Redundant latch suppressor mount A mount designed to be integrated into a noise suppressor. The proposed apparatus encompasses an acme thread and two springs which serve as secondary latches. Offsetting the secondary spring latches in such a manner as to ensure one always fully seats into the index... | 06/29/2010 |
| 7661349 | Multifunctional firearm muzzle attachment system primarily for attaching a noise suppressor to a firearm An apparatus and method for easily, quickly and reliably attaching a noise suppressor or other auxiliary device to the muzzle end of a firearm barrel and for easily, quickly and reliably removing the noise suppressor or other auxiliary device there from. My inventio... | 02/16/2010 |
| 7594464 | Sound suppressors for firearms Firearm sound suppressor apparatus comprising a sound suppressor body including a sound suppressing front section and a back section, the back section adapted to coaxially receive a muzzle fixture secured to the firearm, the back section configured with at least thr... | 09/29/2009 |
| 7587969 | Asymmetric firearm silencer with coaxial elements The present invention relates to a silencer for reducing muzzle blast and noise of firearms or similar devices. The present silencer has a hollow cylindrical or other shape casing comprising front and rear end caps and an opening aligned along a longitudinal axis de... | 09/15/2009 |
| 7516690 | Firearm suppressor, mounting system and mounting method A firearm suppressor includes a housing to be mounted to a firearm. The housing defines a lumen therein for receiving gases from the firearm. At least one stripper member is disposed in the lumen for engaging and deflecting the gases. At least one one-way flow eleme... | 04/14/2009 |
| 7415918 | Fume extractor This invention relates to a fume extractor (10) for extracting fumes from a bore (12) of a barrel (14) of a gun and comprising an annular main reservoir (16); an annular inlet reservoir (18); and an annular auxiliary reservoir (... | 08/26/2008 |
| 7412917 | Sound suppressor silencer baffle A baffle for use in a firearm suppressor, which increases the amount of sound and flash that are perceived upon the firing of a firearm upon which a suppressor is placed without substantial alteration to the power or accuracy of the firearm upon which the suppressor... | 08/19/2008 |
| 7353740 | Rapid adjust muzzle system A gun barrel adaptor includes a body having a central bore therethrough and including a flange, the flange having a hole therethrough, the body having a lower side on one side of the flange and an upper side on another side of the flange; a flat spring attached to a... | 04/08/2008 |
| 7353741 | Gun barrel assembly A firearm barrel assembly having a gun barrel with a muzzle opening on a distal end, a shroud coaxially surrounding at least a portion of the barrel, the shroud having a distal portion extending beyond the muzzle opening defining a shroud front region having a dista... | 04/08/2008 |
| 7325474 | Silencer The present invention relates to a silencer easily cleanable inside. This silencer comprises a casing cylinder and a segment member housed in the casing cylinder to constitute a sound reducing means. The silencer further comprises a segment member fastening means fo... | 02/05/2008 |
| 7313994 | Apparatus and method for blast suppression An improved method of blast suppression involves forming a foam barrier in proximity to a bomb or other suspicious device. The foam is maintained in position by a containment structure which is inflated and kept in an inflated state by the foam used to form such bar... | 01/01/2008 |
| 7308967 | Sound suppressor A sound suppressor for a firearm for reducing sound and flash levels upon the discharge of a firearm comprises a cylindrical housing, a proximal end cap with means for attachment to a firearm and to the cylindrical housing, a distal end cap with means for attachment... | 12/18/2007 |
| 7302774 | Flash suppressor apparatus and methods Flash suppressors having novel expansion features are disclosed. In one embodiment, a suppressor apparatus includes an attachment portion adapted to attach to a gun barrel, and a suppressor portion coupled to the attachment portion. The suppressor portion has a supp... | 12/04/2007 |
| 7237467 | Sound suppressor A sound suppressor for a firearm comprises a cylindrical housing having a proximal end with means for attachment to a firearm and to the cylindrical housing, and a distal end with means for attachment to the housing, and a plurality of baffle elements positioned wit... | 07/03/2007 |
| 7207255 | Muzzle device The present invention relates to a muzzle device for countering muzzle climb of a firearm muzzle 1, the muzzle device. The device comprises a chamber 5 having entry and exit apertures arranged for alignment with the path of a projectile expelled from t... | 04/24/2007 |
| 7207258 | Weapon silencers and related systems Silencers are provided for a weapon having a combustion chamber and a barrel. The weapon is configured to launch a projectile with combustion gases generated in the combustion chamber. An exemplary silencer includes a proximal end and a distal end, the proximal end ... | 04/24/2007 |
| 7194836 | Gun attachment method and apparatus A gun attachment adapted to fit to the subframe of a handgun and mount to a laterally extending member which can be a modified laterally extending member to extend beyond the lateral surfaces of the subframe, whereby an extension member which moves with respect to a... | 03/27/2007 |
| 7174833 | Shotgun shell flight path indicator A shotgun shell flight path indicator is described which in general includes a shell casing having a primer end having a primer, a propellant disposed within the interior of the casing proximate to the primer adapted for ignition by the primer, and a non-combustible... | 02/13/2007 |
| 7171904 | Shotgun shell flight path indicator A shotgun shell flight path indicator is described which in general includes a shell casing having propellant disposed within the interior of the casing proximate and a non-combustible indicator positioned within the casing. The indicator generally has a sufficient ... | 02/06/2007 |
| 7141749 | Socket switch for light bulb A socket switch for a light bulb comprises a shell, a main body, a grounding unit, a switch unit, an electric conduction unit, wherein a holding chamber is formed inside the shell. The shell has two coupling holes formed thereon. The grounding unit, the switch unit,... | 11/28/2006 |
| 7114861 | Laser module with trimming capacity A laser module with trimming capacity has a base having an indented portion formed thereon so as to be non-annular in configuration. A lens is disposed inside the base. A laser diode is disposed inside the base and behind the lens. A printed circuit board electrical... | 10/03/2006 |
| 7086497 | Induction system with low pass filter for turbo charger applications A flow tube for an induction system with a turbo charger includes a first tube half and a second tube half with a noise attenuation plate positioned between the halves. The noise attenuation plate includes a plurality of holes having varying diameters and depths. Th... | 08/08/2006 |
| 7073426 | Sound suppressor A sound, flash and recoil suppressor for a firearm utilizing an outer tube or housing. Rear and front end caps are secured to the outer tube. A symmetrical blast baffle, and one or more asymmetrical baffles and spacers are typically positioned within the housing. Th... | 07/11/2006 |
| 7062874 | Method and apparatus for installing a fixture to the muzzle end of a firearm A method and apparatus for installing a fixture, such as a flash suppressor, to the threaded muzzle end of a firearm barrel. A chart or “timing wheel” is directly placed to the fixture when hand tightened to the firearm's muzzle end without any shims placed ther... | 06/20/2006 |
| 7059235 | Adjustable muzzle stabilizer for repeating firearm A muzzle stabilizer for a repeating firearm is described. The muzzle stabilizer includes a tubular body having two or more gas vents for venting gas in an average direction that exerts a corrective force for counterbalancing muzzle climb during periods of repeating ... | 06/13/2006 |
| 7032339 | Lateral projection muzzle brake An improved muzzle brake, attached to the end of a rifle barrel reducing the recoil of the rifle includes an internally threaded attaching end, engaging outer threads of a rifle barrel, a flattened projectile end, with an overall increasing taper from the attaching ... | 04/25/2006 |
| 6973863 | Adaptor for firing blank ammunition An adaptor for use with a flash suppressor on a gun barrel in order to allow the gun to repeatedly fire blank rounds of ammunition. The adaptor has a stem that chokes the flow of gases from an exploding round in order to create a back pressure. A body is used to cou... | 12/13/2005 |
| 6948415 | System for attaching a noise suppressor to a firearm An apparatus and method for easily, quickly and reliably attaching a noise suppressor or other auxiliary device to the muzzle end of a firearm barrel, and in particular to a flash suppressor affixed to the muzzle end of the firearm, and for easily, quickly and relia... | 09/27/2005 |