Patents by Inventor Peter J. Pierce

Peter J. Pierce 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: 9302543
    Abstract: A trolley for use in a cable lift having a mast with a generally rectangular hollow cavity forming a track in which the trolley may be reciprocated upwardly and downwardly. The trolley is connected to a cradle outside the mast upon which an object to be lifted may be placed. The trolley has trolley wheels which make rolling contact with a front and back side of the track to resist a forward bending moment in down direction on the cradle. The trolley has spacer wheels which make rolling contact with a right and left sides of the track to resist a lateral bending moment on the cradle such that the cradle may be mounted on the mast offset from centerline.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: April 5, 2016
    Inventors: Peter J. Pierce, Paul J. Altnether
  • Patent number: 6264220
    Abstract: A cart, primarily for holding tools and miscellaneous other items, comprising a base tray on casters for being wheeled about, uprights extending up from the base tray carrying side trays and a removable top tray, and pegboards at opposite sides, components thereof being sized in such manner that, in disassembly, they can be compactly packaged in the base tray.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: July 24, 2001
    Inventors: Peter J. Pierce, David Bardin