Patents by Inventor Jacob Kravel

Jacob Kravel 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: 9989340
    Abstract: A stun grenade includes a cartridge having an explosive charge in communication with a fuse and a housing including a closed end, an open end, a longitudinal axis and including an internal cavity which accommodates the cartridge. An end cap is attachable to the open end of the housing, the end cap including an end wall and a side wall. A plurality of spaced first vents are defined in the end wall of the end cap. A plurality of spaced second vents is defined in an end wall of the housing. The output from an explosive charge is optimized by vents having a straight flow path. The vents have a first end in fluid communication with the cavity and a second end in fluid communication with an exterior periphery of the housing.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: June 5, 2018
    Assignee: Combined Systems Inc.
    Inventors: Michael J. Grassi, Jacob Kravel, Thomas S. Guyer
  • Publication number: 20170102219
    Abstract: A stun grenade includes a cartridge having an explosive charge in communication with a fuse and a housing including a closed end, an open end, a longitudinal axis and including an internal cavity which accommodates the cartridge. An end cap is attachable to the open end of the housing, the end cap including an end wall and a side wall. A plurality of spaced first vents are defined in the end wall of the end cap. A plurality of spaced second vents is defined in an end wall of the housing. The output from an explosive charge is optimized by vents having a straight flow path. The vents have a first end in fluid communication with the cavity and a second end in fluid communication with an exterior periphery of the housing.
    Type: Application
    Filed: September 6, 2016
    Publication date: April 13, 2017
    Applicant: Combined Systems Inc.
    Inventors: Michael J. Grassi, Jacob Kravel, Thomas S. Guyer
  • Patent number: 9574857
    Abstract: A trip flare with flash bang has a body having a sidewall and a hollow interior, a lid releasably attached to the body, the lid including a fuse, the interior of the body containing an illuminant composition in communication with the fuse, and a flash bang charge composition in communication with the fuse and attached to the lid by an elongated flexible tether. The tether may be a coil when received within the interior of the body. There may be an ignition composition proximate the illuminant composition such that combustion of the ignition composition ignites the illuminant composition. The flash bang charge composition may have a pyrotechnic fuse proximate the ignition composition such that combustion of the ignition composition ignites the pyrotechnic fuse. There may be a first fire composition proximate the ignition composition such that combustion of the first fire composition ignites the ignition composition.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: February 21, 2017
    Assignee: COMBINED SYSTEMS, INC.
    Inventor: Jacob Kravel
  • Patent number: 9488454
    Abstract: A whistling spinning grenade has a body defining a body axis and having a sidewall and a hollow interior, the body interior containing a teargas generation component and an ignition component, the body sidewall defining a plurality of passages, each passage communicating from the interior of the body to an exhaust aperture, each exhaust aperture penetrating the body sidewall and defining an exhaust aperture axis, and each exhaust aperture axis being angularly offset from a radius connecting the passage to the body axis, such that it has a tangential directional component with respect to the sidewall, and wherein rotation of the grenade about the body axis is propelled by the expulsion of exhaust gas through the exhaust apertures. The teargas generation component may be proximate the ignition component such that combustion of the ignition component ignites the teargas generation component. The passages and exhaust apertures may be all coplanar.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: November 8, 2016
    Assignee: CSI-PENN ARMS, LLC
    Inventor: Jacob Kravel
  • Patent number: 9470495
    Abstract: A rubber fragmentation grenade has a body containing an explosive charge, a fuse assembly connected to the body, an elastomeric outer layer at least partly encompassing the body, and the outer layer being scored to provide a plurality of segments. The segments may be rectangular. Each segment may have a thickness, and may have a width greater than the thickness. The thickness may be at least one-third of the width. The body may include a cylindrical portion, and the outer layer may be a cylindrical sleeve encompassing the cylindrical portion. The segments may include a ring of segments. Each ring may include six segments. The explosive charge may be an elongated shape defining a charge axis and having opposed ends, the elastomeric outer layer being a cylindrical form being concentric with the charge. The elastomeric outer layer may extend beyond the ends of the charge.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: October 18, 2016
    Assignee: COMBINED SYSTEMS, INC.
    Inventor: Jacob Kravel
  • Publication number: 20160273898
    Abstract: A rubber fragmentation grenade has a body containing an explosive charge, a fuse assembly connected to the body, an elastomeric outer layer at least partly encompassing the body, and the outer layer being scored to provide a plurality of segments. The segments may be rectangular. Each segment may have a thickness, and may have a width greater than the thickness. The thickness may be at least one-third of the width. The body may include a cylindrical portion, and the outer layer may be a cylindrical sleeve encompassing the cylindrical portion. The segments may include a ring of segments. Each ring may include six segments. The explosive charge may be an elongated shape defining a charge axis and having opposed ends, the elastomeric outer layer being a cylindrical form being concentric with the charge. The elastomeric outer layer may extend beyond the ends of the charge.
    Type: Application
    Filed: March 20, 2015
    Publication date: September 22, 2016
    Applicant: Combined Systems, Inc.
    Inventor: Jacob Kravel
  • Publication number: 20160161231
    Abstract: A whistling spinning grenade has a body defining a body axis and having a sidewall and a hollow interior, the body interior containing a teargas generation component and an ignition component, the body sidewall defining a plurality of passages, each passage communicating from the interior of the body to an exhaust aperture, each exhaust aperture penetrating the body sidewall and defining an exhaust aperture axis, and each exhaust aperture axis being angularly offset from a radius connecting the passage to the body axis, such that it has a tangential directional component with respect to the sidewall, and wherein rotation of the grenade about the body axis is propelled by the expulsion of exhaust gas through the exhaust apertures. The teargas generation component may be proximate the ignition component such that combustion of the ignition component ignites the teargas generation component. The passages and exhaust apertures may be all coplanar.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 9, 2016
    Applicant: CSI-PENN ARMS, LLC
    Inventor: Jacob Kravel
  • Patent number: 8915190
    Abstract: A launched smoke grenade has a body having a hollow interior that contains an active grenade material and a bullet trap element formed of an inert material, the body defining a muzzle receptacle bore that is adapted to receive a rifle muzzle, the active grenade material defining a cavity, and the bullet trap element having at least a forward portion received in the cavity. The active grenade material may include a smoke generation component and an ignition component. There may be a bullet suppressing material positioned between the rifle muzzle and the inert material. The bullet suppressing material and the inert material may be made of different materials.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: December 23, 2014
    Assignee: CSI-Penn Arms, LLC
    Inventor: Jacob Kravel
  • Patent number: 8776691
    Abstract: A launched smoke grenade has a cartridge case having a hollow interior that receives a primer and a propellant, a projectile received by the cartridge case, and the projectile including a smoke generation component and an ignition component. The smoke generation component and the ignition component may be separated by a barrier prior to admission of the ignition component. The ignition component may burn through the barrier to ignite the smoke generation component. The smoke generation component may include hexachloroethane. The propellant may be black powder or smokeless powder.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: July 15, 2014
    Assignee: CSI-Penn Arms, LLC
    Inventor: Jacob Kravel
  • Patent number: 8726810
    Abstract: A grenade includes a body having at least one interior chamber; a fuze assembly attached to the body, that fuze assembly being capable of detonating the grenade and a safety lever movable between a first position to a second position which engages the fuze assembly. A firing pin is engageable with the safety lever to prevent the lever from being moved to the second position. A retaining clip retains the firing pin and prevents premature release of the pin from the grenade wherein the retaining clip is integrated within the safety lever.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: May 20, 2014
    Assignee: Combined Systems, Inc.
    Inventor: Jacob Kravel
  • Publication number: 20140013985
    Abstract: A launched smoke grenade has a body having a hollow interior that contains an active grenade material and a bullet trap element formed of an inert material, the body defining a muzzle receptacle bore that is adapted to receive a rifle muzzle, the active grenade material defining a cavity, and the bullet trap element having at least a forward portion received in the cavity. The active grenade material may include a smoke generation component and an ignition component. There may be a bullet suppressing material positioned between the rifle muzzle and the inert material. The bullet suppressing material and the inert material may be made of different materials.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 16, 2014
    Inventor: Jacob Kravel
  • Publication number: 20130319278
    Abstract: A launched smoke grenade has a cartridge case having a hollow interior that receives a primer and a propellant, a projectile received by the cartridge case, and the projectile including a smoke generation component and an ignition component. The smoke generation component and the ignition component may be separated by a barrier prior to admission of the ignition component. The ignition component may burn through the barrier to ignite the smoke generation component. The smoke generation component may include hexachloroethane. The propellant may be black powder or smokeless powder.
    Type: Application
    Filed: June 4, 2012
    Publication date: December 5, 2013
    Inventor: Jacob Kravel
  • Publication number: 20130239838
    Abstract: A grenade includes a body having at least one interior chamber; a fuze assembly attached to the body, that fuze assembly being capable of detonating the grenade and a safety lever movable between a first position to a second position which engages the fuze assembly. A firing pin is engageable with the safety lever to prevent the lever from being moved to the second position. A retaining clip retains the firing pin and prevents premature release of the pin from the grenade wherein the retaining clip is integrated within the safety lever.
    Type: Application
    Filed: March 19, 2012
    Publication date: September 19, 2013
    Applicant: Combined Systems, Inc.
    Inventor: Jacob Kravel
  • Publication number: 20130186295
    Abstract: A grenade is defined by a body made from a rubberized material, the body including a hollow interior and a stem section. A cap is releasably secured to the stem section, the cap retaining a fuze assembly which is threadingly engaged therewith. The grenade is equipped with an ejection charge that causes said cap and said fuze assembly to be separated from said body prior to detonation of the grenade. A hydrophobic sealing layer applied to the exterior of the stem section and cap provides a watertight seal relative to the interior of the grenade, but without substantially interfering with the ejection of said cap and fuze assembly.
    Type: Application
    Filed: January 25, 2012
    Publication date: July 25, 2013
    Applicant: Combined Systems, Inc.
    Inventor: Jacob Kravel
  • Patent number: 7866265
    Abstract: A flare apparatus constructed of a flare case with a primer functionally coupled to a propellant charge. Loaded within the flare case is a flare cup, having within, a starter composition, a flare composition, and a flash charge. The flare composition is functionally coupled to the flare starter composition, and the flash charge is functionally coupled to the flare composition. Upon primer activation the propellant charge is ignited. Flame and hot gasses from the propellant charge propel the flare cup out of the flare case and downrange while also igniting the flare starter composition within the flare cup. The flare starter composition ignites the flare composition, which produces a visual artifact and subsequently ignites the flash charge which produces a visual and audible artifact at or near the end of its flight.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: January 11, 2011
    Inventors: Jacob Kravel, Michael Brunn
  • Patent number: 7444941
    Abstract: An anti-personnel projectile launched from a weapon shell required at impact to have a low lethality consequence, in which the projectile is fitted in the shell in a shape characterized by a blunt end in the direction of flight and maintained in this shape by oppositely directed air resistance and propelling forces to obviate a change of shape during flight that might cause a serious injury.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: November 4, 2008
    Assignee: Combined Systems, Inc.
    Inventors: Michael Brunn, Jacob Kravel
  • Patent number: 7089864
    Abstract: An anti-personnel projectile launched from a weapon shell required at impact to have a low lethality consequence, in which the projectile is fitted in the shell in a shape characterized by a blunt end in the direction of flight and maintained in this shape by oppositely directed air resistance and propelling forces to obviate a change of shape during flight that might cause a serious injury.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: August 15, 2006
    Assignee: Combined Systems, Inc.
    Inventors: Michael Brunn, Jacob Kravel
  • Publication number: 20050066842
    Abstract: An anti-personnel projectile launched from a weapon shell required at impact to have a low lethality consequence, in which the projectile is fitted in the shell in a shape characterized by a blunt end in the direction of flight and maintained in this shape by oppositely directed air resistance and propelling forces to obviate a change of shape during flight that might cause a serious injury.
    Type: Application
    Filed: June 21, 2004
    Publication date: March 31, 2005
    Inventors: Michael Brunn, Jacob Kravel
  • Patent number: 6755133
    Abstract: An anti-personnel projectile launched from a weapon shell required at impact to have a low lethality consequence, in which the projectile is fitted in the shell in a shape characterized by a blunt end in the direction of flight and maintained in this shape by oppositely directed air resistance and propelling forces to obviate a change of shape during flight that might cause a serious injury.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: June 29, 2004
    Inventors: Michael Brunn, Jacob Kravel
  • Patent number: 6752086
    Abstract: An anti-personnel projectile launched from a weapon shell required at impact to have a low lethality consequence, in which the projectile is fitted in the shell in a shape characterized by a blunt end in the direction of flight and maintained in this shape by oppositely directed air resistance and propelling forces to obviate a change of shape during flight that might cause a serious injury.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: June 22, 2004
    Inventors: Jacob Kravel, Michael Brunn