Patents by Inventor Sylvain Dionne
Sylvain Dionne has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11656063Abstract: A reduced-energy cartridge for a chamber of a firearm includes a case and a sabot. The sabot is moveably attached to the case and supported for movement relative to the case from an unfired position to a fired position resulting from combustion within the combustion chamber. The cartridge further includes a sealing member that projects radially outward from the longitudinal axis and from the sabot. The sealing member defines a blowback boundary where the cartridge is configured to seal against an inner surface of the chamber of the firearm. A forward area of the cartridge and a rear area of the cartridge are separated by the blowback boundary. The sealing member is configured for releasably sealing against the inner surface of the chamber to regulate pressure at the forward area resulting from combustion within the combustion chamber.Type: GrantFiled: November 12, 2020Date of Patent: May 23, 2023Assignee: General Dynamics OTS—Canada, Inc.Inventors: Martin Doiron, Richard Dion, Julien Gagné, Sylvain Dionne
-
Publication number: 20220146238Abstract: A reduced-energy cartridge for a chamber of a firearm includes a case and a sabot. The sabot is moveably attached to the case and supported for movement relative to the case from an unfired position to a fired position resulting from combustion within the combustion chamber. The cartridge further includes a sealing member that projects radially outward from the longitudinal axis and from the sabot. The sealing member defines a blowback boundary where the cartridge is configured to seal against an inner surface of the chamber of the firearm. A forward area of the cartridge and a rear area of the cartridge are separated by the blowback boundary. The sealing member is configured for releasably sealing against the inner surface of the chamber to regulate pressure at the forward area resulting from combustion within the combustion chamber.Type: ApplicationFiled: November 12, 2020Publication date: May 12, 2022Applicant: General Dynamics OTS - Canada, Inc.Inventors: Martin Doiron, Richard Dion, Julien Gagné, Sylvain Dionne
-
Patent number: 10254065Abstract: A slide for a weapon conversion kit of the type used in conjunction with a firearm having a stock ejector and configured to fire ammunition is provided. The slide includes a slide body and a slaved ejector member rotatably coupled to the slide body. The slaved ejector member has a first portion and a second portion, the second portion including a contact region. The slaved ejector member is configured to contact the stock ejector when the slide body slides rearward in response to firing of the firearm and thereby causes the contact region of the second portion of the slaved ejector member to eject a cartridge case of the ammunition.Type: GrantFiled: October 23, 2017Date of Patent: April 9, 2019Assignee: General Dynamics Ordnance and Tactical Systems—Canada, Inc.Inventor: Sylvain Dionne
-
Patent number: 10254071Abstract: A conversion kit for a firearm of the type having a removable component is disclosed. The conversion kit includes a chamber piece having a coupling end, and a muzzle piece of a conversion barrel having a coupling end configured to be secured to the coupling end of the chamber piece and an engagement end. The engagement end is configured to mate with the removable component such that manipulation of the removable component causes the coupling end of the muzzle piece of the conversion barrel to be secured to the coupling end of the chamber piece.Type: GrantFiled: December 1, 2016Date of Patent: April 9, 2019Assignee: General Dynamics Ordnance and Tactical Systems—Canada, IncInventor: Sylvain Dionne
-
Publication number: 20180313622Abstract: A slide for a weapon conversion kit of the type used in conjunction with a firearm having a stock ejector and configured to fire ammunition is provided. The slide includes a slide body and a slaved ejector member rotatably coupled to the slide body. The slaved ejector member has a first portion and a second portion, the second portion including a contact region. The slaved ejector member is configured to contact the stock ejector when the slide body slides rearward in response to firing of the firearm and thereby causes the contact region of the second portion of the slaved ejector member to eject a cartridge case of the ammunition.Type: ApplicationFiled: October 23, 2017Publication date: November 1, 2018Inventor: Sylvain Dionne
-
Patent number: 9857151Abstract: An ammunition primer assembly is provided that includes, but is not limited to a cup having a base and a sidewall, a priming composition located in the cup and disposed on the base, an anvil located in the cup an upper surface, a lower surface and a side surface abutting the sidewall. The anvil defining a central channel formed therethrough. A portion of the base of the cup forms a striking surface. The striking surface is adjacent to a portion of the primer composition that is adjacent to the lower surface of the anvil. The striking surface is offset from a center of the cup.Type: GrantFiled: October 20, 2014Date of Patent: January 2, 2018Assignee: General Dynamics Ordnance and Tactical Systems—Canada, Inc.Inventors: Sylvain Dionne, Pierre Duchesne, Eric Toutant
-
Publication number: 20170160040Abstract: A conversion kit for a firearm of the type having a removable component is disclosed. The conversion kit includes a chamber piece having a coupling end, and a muzzle piece of a conversion barrel having a coupling end configured to be secured to the coupling end of the chamber piece and an engagement end. The engagement end is configured to mate with the removable component such that manipulation of the removable component causes the coupling end of the muzzle piece of the conversion barrel to be secured to the coupling end of the chamber piece.Type: ApplicationFiled: December 1, 2016Publication date: June 8, 2017Inventor: Sylvain Dionne
-
Publication number: 20160238355Abstract: An ammunition primer assembly is provided that includes, but is not limited to a cup having a base and a sidewall, a priming composition located in the cup and disposed on the base, an anvil located in the cup an upper surface, a lower surface and a side surface abutting the sidewall. The anvil defining a central channel formed therethrough. A portion of the base of the cup forms a striking surface. The striking surface is adjacent to a portion of the primer composition that is adjacent to the lower surface of the anvil. The striking surface is offset from a center of the cup.Type: ApplicationFiled: October 20, 2014Publication date: August 18, 2016Applicant: General Dynamics Ordnance and Tactical Systems Canada Inc.Inventors: Sylvain Dionne, Pierre Duchesne, Eric Toutant
-
Patent number: 6931978Abstract: A blow-back operating automatic firearm has a sliding mass carried with its bolt carrier assembly to increase the dwell time of the bolt at the breech when the bolt is in battery position for firing. The sliding mass reduces the tendency of the bolt to bounce-off the head end of the seated cartridge, thereby reducing the risk that a misfiring will occur.Type: GrantFiled: February 19, 2004Date of Patent: August 23, 2005Assignee: SNC Technologies Inc.Inventor: Sylvain Dionne
-
Patent number: 6715396Abstract: A cartridge feed tray for belt ammunition is modified to receive shorter ammunition and exclude ammunition of standard length by inclusion of an insert positioned along the forward containment wall of the tray. The insert carries a feed lip that fits through a loading port orifice in the feed tray to direct shorter ammunition downwardly as it is being advanced towards the weapon breach for loading.Type: GrantFiled: February 26, 2003Date of Patent: April 6, 2004Assignee: SNC Technologies Inc.Inventor: Sylvain Dionne
-
Patent number: 6625916Abstract: A training kit is designed for use with a firearm normally having a standard bolt that is provided at the forward end with a bolt recess for receiving and embracing the head end of a standard cartridge. The training kit is provided with a training bolt having a circular recess of a diameter that will not receive and embrace the head end of the standard cartridge thereby limiting placement of a standard cartridge beyond the reach of the firing pin. Rounds of reduced-energy training ammunition are provided with a head end of complementary dimensions that permits the head end to be seated within the recess of a conversion bolt, and therefore fired.Type: GrantFiled: November 4, 1999Date of Patent: September 30, 2003Assignee: SNC Technologies Inc.Inventor: Sylvain Dionne
-
Publication number: 20030177896Abstract: A cartridge feed tray for belt ammunition is modified to receive shorter ammunition and exclude ammunition of standard length by inclusion of an insert positioned along the forward containment wall of the tray. The insert carries a feed lip that fits through a loading port orifice in the feed tray to direct shorter ammunition downwardly as it is being advanced towards the weapon breach for loading.Type: ApplicationFiled: February 26, 2003Publication date: September 25, 2003Inventor: Sylvain Dionne
-
Patent number: 6442882Abstract: 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 replacement barrel downwardly. This aligns the spent casing for ejection by the ejector, once extracted from the chamber. The slide may carry a removable deflector plate for contacting the cam.Type: GrantFiled: November 17, 2000Date of Patent: September 3, 2002Assignee: SNC Technologies Inc.Inventor: Sylvain Dionne
-
Patent number: 6439123Abstract: A telescopic training round has an inner sealant disc with a central hole to ensure against gas leakage as the casing expands telescopically.Type: GrantFiled: August 30, 2000Date of Patent: August 27, 2002Assignee: SNC Technologies Inc.Inventors: Sylvain Dionne, Nathalie Gauthier
-
Patent number: 6357331Abstract: A conversion kit for a recoil-operating automatic pistol to convert it to direct blow-back operation utilizes a two piece barrel having chamber and muzzle portions that may be threaded together. The chamber portion is first installed on the receiver by insertion through the injection port, and the muzzle-piece is then threaded to the chamber-piece to complete the assembly of the barrel.Type: GrantFiled: April 20, 2000Date of Patent: March 19, 2002Assignee: SNC Technologies Inc.Inventor: Sylvain Dionne
-
Patent number: 6276252Abstract: 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 the absence of rearward displacement of the barrel when the firearm is converted to a training configuration. Such insert may be assembled into the weapon without modification to the slide or frame of said weapon.Type: GrantFiled: May 13, 1999Date of Patent: August 21, 2001Assignee: SNC Technologies Inc.Inventor: Sylvain Dionne
-
Patent number: 5983773Abstract: A barrel positioning spring moves a barrel in a blow-back operating pistol earwardly when the slide recoils in order to position the chamber on the barrel to receive a further cartridge with the return of the slide. This spring in a Colt(.TM.) .45 caliber pistol may be seated on the recoil spring guide rod present beneath the barrel. A removable loading ramp extension is fitted to the frame in the space between the chamber end and the next cartridge to receive such cartridge as it is being chambered by the returning slide.Type: GrantFiled: August 25, 1998Date of Patent: November 16, 1999Assignee: SNC Industrial Technologies Inc./Les Technologies Industrielles SNC Inc.Inventor: Sylvain Dionne
-
Patent number: 5974942Abstract: A barrel for an automatic firearm which cycles on recoil action is provided with a transverse pin extending across the top of the rearward portion of the chamber. This pin nests within the extraction groove of a cartridge sing during firing. On cycling, the transverse pin deflects the spent case downwardly towards an ejector which effects ejection of the casing.Type: GrantFiled: August 25, 1998Date of Patent: November 2, 1999Assignee: SNC Industrial Technologies Inc./Les Technologies Industrielles SNC Inc.Inventor: Sylvain Dionne