Patents by Inventor Sergei Tupitsyn

Sergei Tupitsyn 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).

  • Pneumatic percussive device
    Patent number: 4964477
    Abstract: A pneumatic percussive device has a casing (1) accomodating a movable hammer piston dividing the interior space of the casing (1) into two chambers. One of these chambers (7) alternately communicates, by means of an air distribution arrangement (3) having a movable actuator member (8), with a compressed air source and with the environment. In addition, said chamber (7) communicates, via a throttling passage (27), with a cavity (10) of the air distribution arrangement (3) the pressure in which ensures movement of the actuator member to one of its limit positions.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: October 23, 1990
    Inventors: Konstantin K. Tupitsyn, Sergei Tupitsyn, Veniamin Kamensky, Kiselev N. Jurievich