Patents by Inventor David R. Warnick

David R. Warnick 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).

  • Shock absorbing seat post
    Patent number: 6581919
    Abstract: A seat post for a cycle has inner and outer members that are slidably mounted together forming a variable volume chamber. The variable volume chamber communicates with a fixed volume chamber in the inner member through orifices and a check valve. Slots are formed in the inner member, and a pin extends from the outer member through the slots. A cushion at one end of the slots prevents hard top-out.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: June 24, 2003
    Assignee: Eko Sport, Inc.
    Inventors: Darek C. Barefoot, David R. Warnick, Thomas A. Hochanadel, Timothy A. Fry
  • Shock absorbing seat post
    Publication number: 20030034596
    Abstract: A seat post for a cycle has inner and outer members that are slidably mounted together forming a variable volume chamber. The variable volume chamber communicates with a fixed volume chamber in the inner member through orifices and a check valve. Slots are formed in the inner member, and a pin extends from the outer member through the slots. A cushion at one end of the slots prevents hard top-out.
    Type: Application
    Filed: August 20, 2002
    Publication date: February 20, 2003
    Inventors: Darek C. Barefoot, David R. Warnick, Thomas A. Hochanadel, Timothy A. Fry