Patents by Inventor Martin F. Stark

Martin F. Stark 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).

  • Reduction of first shot noise in firearm sound suppressors
    Patent number: 10337819
    Abstract: First round shot noise and flash caused by combustion of oxygen contained in the air residing in a firearm sound suppresser can be reduced by providing a valve that communicates with the baffled interior space of the suppressor, and connecting a source of non-flammable gas such as CO2 to the valve in order to inject the gas into the suppressor. The non-flammable gas displaces the air in the suppressor, removing the oxygen available for combustion when the first shot is fired.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: July 2, 2019
    Inventors: David B. Stark, Martin F. Stark, Anthony J. Parilllo
  • Reduction of first shot noise in firearm sound suppressors
    Patent number: 10145636
    Abstract: First round shot noise and flash caused by combustion of oxygen contained in the air residing in a firearm sound suppresser can be reduced by providing a valve that communicates with the baffled interior space of the suppressor, and connecting a source of non-flammable gas such as CO2 to the valve in order to inject the gas into the suppressor. The non-flammable gas displaces the air in the suppressor, removing the oxygen available for combustion when the first shot is fired.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: December 4, 2018
    Inventors: David B. Stark, Martin F. Stark, Anthony J. Parilllo
  • Reduction of First Shot Noise in Firearm Sound Suppressors
    Publication number: 20180202743
    Abstract: First round shot noise and flash caused by combustion of oxygen contained in the air residing in a firearm sound suppresser can be reduced by providing a valve that communicates with the baffled interior space of the suppressor, and connecting a source of non-flammable gas such as CO2 to the valve in order to inject the gas into the suppressor. The non-flammable gas displaces the air in the suppressor, removing the oxygen available for combustion when the first shot is fired.
    Type: Application
    Filed: January 12, 2018
    Publication date: July 19, 2018
    Inventors: David B. Stark, Martin F. Stark, Anthony J. Parilllo
  • Phonograph record adapter
    Patent number: 4148491
    Abstract: A phonograph record adapter comprising a rigid ring adapted to receive a standard phonograph record therein, a flange extending inwardly of the ring, the interior diameter of the flange being less than the diameter of the record, the flange being adapted to engage and overlie a surface of the record and being further adapted to exert a force upon the record when the record is in playing position to substantially negate the effects of warpage in the record, and spring biasing means mounted on interior portions of the ring and engageable with the record to center the record.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: April 10, 1979
    Inventors: Martin F. Stark, Robert L. Whalen