Patents by Inventor Peter R. Tkachuk

Peter R. Tkachuk 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).

  • Removable one-piece truck bed divider
    Patent number: 5520314
    Abstract: A truck bed divider having a unitary, one-piece structure which may be eay positioned in and instantly removed from a truck bed includes a dividing portion having a plurality of bars for preventing articles in the truck bed from moving or sliding in the truck bed. The divider further includes top and bottom frame portions which are joined to the divider portion and which support the divider portion in the truck bed. Retaining or bracing portions brace the truck bed divider against the truck bed.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: May 28, 1996
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Peter R. Tkachuk
  • Dynamic pressure test unit-ratio method
    Patent number: 4553425
    Abstract: A dynamic pressure test unit is utilized to determine the yield point of a lask. For a period of time prior to the yield point being reached the ratio of the pressure vs. volume of water pumped into a test flask assumes a constant value. After reaching the yield point the volume indication increases at a faster rate than the pressure giving a negative slope to a line on a stripchart recorder that indicates the pressure divided by the volume of water pumped into the flask.
    Type: Grant
    Filed: February 2, 1984
    Date of Patent: November 19, 1985
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Peter R. Tkachuk