Patents by Inventor Thomas Francis Jesperson

Thomas Francis Jesperson 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: 6431533
    Abstract: An apparatus for supporting sheet material includes clamping means (16) having opposed jaws (60, 62) arranged to releaseably clamp sheet material therebetween and handle means (14) located, in use, below the clamping means (16) for use in manual lifting of the apparatus and sheet material clamped between the jaws (60, 62).
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: August 13, 2002
    Inventor: Thomas Francis Jesperson
  • Patent number: 5704755
    Abstract: There is provided a panel lifting apparatus for detachable attachment to a panel lifting hoist or trolley. The apparatus comprises a primary support member, a clamp for gripping engagement with a panel to be lifted, a control device for actuating the clamp via a cable linking the clamp and the control device. When a panel is to be lifted from a position off the apparatus and onto the hoist or trolley, the clamp is brought into engagement with the panel and the control device is actuated to draw the panel onto the hoist or trolley enabling the support and carriage of same.
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: January 6, 1998
    Assignee: Plasterboard Lifting Tools Pty Ltd.
    Inventor: Thomas Francis Jesperson