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:
Sep. 15, 1992
Filed:
Jan. 09, 1992
Keith R Olson, Beloit, WI (US);
Charles C Moschel, Stephens City, VA (US);
Beloit Corporation, Beloit, WI (US);
Abstract
A piston apparatus for use in a controlled deflection roll includes a rectilinear-shaped piston having at least one side seal extending longitudinally in a slot in each side wall and an end seal in each end of the piston extending between the side seals. The end seals have at least one pair of intersecting surfaces at each end thereof which cooperate with a corresponding pair of surfaces of each side seal to move longitudinally relative to the piston and side seals to maintain a continuous seal peripherally about the piston. The continuous seal engages the side walls of a channel within the support shaft of the controlled deflection roll and a non-movable seal surface in each of two, opposed dams at either end of the channel in the support shaft. The side and end seals move with the piston relative to the support shaft and seal surfaces on the end dams.