Patents by Inventor Chris Pollack

Chris Pollack 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: 9702648
    Abstract: The present disclosure relates to kits and associated methods for converting a semi-automatic firearm into a bolt single action firearm, as well as the converted firearm itself. The kit includes a housing (e.g. upper receiver) that accommodates a bolt carrier and a charging handle and a carrier key, if desired. The housing has ends which mount to the existing lower receiver of the semi-automatic firearm to convert the semi-automatic firearm into a manual bolt-action firearm.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: July 11, 2017
    Inventor: Chris Pollack
  • Patent number: 9279628
    Abstract: The present disclosure relates to kits and associated methods for converting a semi-automatic firearm into a bolt single action firearm, as well as the converted firearm itself. The kit includes a housing (e.g. upper receiver) that accommodates a bolt carrier and a charging handle and a carrier key, if desired. The housing has ends which mount to the existing lower receiver of the semi-automatic firearm to convert the semi-automatic firearm into a manual bolt-action firearm.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: March 8, 2016
    Inventor: Chris Pollack
  • Patent number: 7211017
    Abstract: An improved inter-axle differential locking clutch is provided that aligns the actuator and the clutch member thereby reducing space and material requirements in the axle assembly housing. The clutch also eliminates the need for a pushrod and shift fork thereby reducing tooling and production costs, as well as eliminating issues associated with misalignment of the piston and pushrod, relative rotation of the shift fork and clutch member, and tipping of the shift fork. The clutch includes one or more pistons disposed within either the axle housing or a carrier supporting the input shaft bearing. Fluid pressure actuates the pistons against a clutch member causing selective engagement between the clutch member and either a side gear driven by the inter-axle differential or a differential case housing the differential gears of the inter-axle differential.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: May 1, 2007
    Assignee: Dana Corporation
    Inventors: Michael Green, Chris Pollack, Gary A. Turner, Leo Wenstrup, James F. Ziech
  • Publication number: 20040204282
    Abstract: An improved inter-axle differential locking clutch is provided that aligns the actuator and the clutch member thereby reducing space and material requirements in the axle assembly housing. The clutch also eliminates the need for a pushrod and shift fork thereby reducing tooling and production costs, as well as eliminating issues associated with misalignment of the piston and pushrod, relative rotation of the shift fork and clutch member, and tipping of the shift fork. The clutch includes one or more pistons disposed within either the axle housing or a carrier supporting the input shaft bearing. Fluid pressure actuates the pistons against a clutch member causing selective engagement between the clutch member and either a side gear driven by the inter-axle differential or a differential case housing the differential gears of the inter-axle differential.
    Type: Application
    Filed: April 30, 2004
    Publication date: October 14, 2004
    Inventors: Michael Green, Chris Pollack, Gary A. Turner, Leo Wenstrup, James F. Ziech