Patents by Inventor Jeffrey R. Hattem

Jeffrey R. Hattem 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: 6654973
    Abstract: A lift-assisted device including a seat portion; a seat support portion which supports the seat portion; a base portion; an undercarriage portion which comprises of at least one scissor linkage member, each scissor linkage member including a first member pivotable connected to a second member near a center portion of the first and second member; a pneumatic bag located between the seat portion and the base portion; a pneumatic cylinder located between the seat portion and the base portion; a pneumatic powering means for powering the pneumatic bag and/or pneumatic cylinder and wherein the first member and second member are slidably connected to the seat portion on one end and fixedly connected to the base portion on an opposite end.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: December 2, 2003
    Assignee: Tech Lift, Inc.
    Inventors: Christian Van Den Heuvel, Francis M. LeGasse, Jeffrey R. Hattem, Joseph L. LeGasse, Michael Catoe
  • Publication number: 20020174486
    Abstract: A lift-assisted device including a seat portion; a seat support portion which supports the seat portion; a base portion; an undercarriage portion which comprises of at least one scissor linkage member, each scissor linkage member including a first member pivotable connected to a second member near a center portion of the first and second member; a pneumatic bag located between the seat portion and the base portion; a pneumatic cylinder located between the seat portion and the base portion; a pneumatic powering means for powering the pneumatic bag and/or pneumatic cylinder and wherein the first member and second member are slidably connected to the seat portion on one end and fixedly connected to the base portion on an opposite end.
    Type: Application
    Filed: May 24, 2001
    Publication date: November 28, 2002
    Inventors: Christian Van Den Heuvel, Francis M. LeGasse, Jeffrey R. Hattem, Joseph L. LeGasse, Michael Catoe
  • Patent number: D522752
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: June 13, 2006
    Assignee: Tanktote, Inc.
    Inventors: Edwin B. Brown, Sr., Jeffrey R. Hattem, Sr., John H. Baker