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. 08, 1980
Filed:
Oct. 13, 1977
Applicant:
Inventor:
Louis C Hrusch, Chesterland, OH (US);
Assignee:
Pneumo Corporation, Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
92 27 ; 92128 ; 188259 ; 277217 ;
Abstract
A radially expandable and contractable split lock ring selectively to unlock and lock a piston and cylinder actuator includes at least one lapped axially extending surface substantially conforming to the surface of the cylinder or piston with which it is in sliding contact when in the unlocked position. The split lock ring has each of its ends slightly inwardly tapered to reduce the thickness thereof to distribute the bending load uniformly throughout the ring and has a flat on the outer diametrical surface diametrically opposed from such tapered ends to provide load carrying symmetry for the ring.