The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 2005
Filed:
May. 05, 2003
Wesley M. Plattner, Tipton, MI (US);
Wesley M. Plattner, Tipton, MI (US);
Other;
Abstract
The present invention relates to a power cylinder apparatus for varying actuation forces applied to a workpiece. The present invention provides an enclosure having a piston rod connectable to a workpiece and slidably disposed within an enclosure. The piston rod moves between a retracted position, wherein the piston rod is retracted within the enclosure, and an extended position, wherein the piston rod extends outwardly from the enclosure. A piston is slidably disposed on the piston rod for movement between the retracted position and the extended position. A bushing is provided within the enclosure for slidably supporting the piston rod and positively stopping the piston in the extended position. The piston rod and piston have varying surface areas substantially perpendicular to the direction of movement such that varying actuation forces may be provided to the workpiece through a supply of a constant fluid pressure.