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:
Jul. 04, 1995
Filed:
Jun. 11, 1993
Applicant:
Inventors:
Calvin R Stringer, Saugus, CA (US);
Clyde R Porter, Los Angeles, CA (US);
Assignee:
P. L. Porter Co., Woodland Hills, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F / ; F16F / ;
U.S. Cl.
CPC ...
188300 ; 188317 ; 267 6412 ; 92 137 ;
Abstract
A hydraulic positioner of the type having a piston movable in a hydraulic cylinder and a valve actuatable for releasing the piston for movement in the chamber is provided with a continuously adjustable mechanism for limiting the stroke of the piston. The cylinder and the stroke limiter share a common tubular housing which is partitioned to define the hydraulic chamber, thereby simplifying the device.