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. 06, 1986
Filed:
Jun. 09, 1980
Applicant:
Inventors:
Paul G Redman, Upland, CA (US);
John M Speicher, Upland, CA (US);
Assignee:
General Dynamics Pomona Division, Pomona, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
91 45 ; 92 24 ; 92 27 ; 188 67 ; 188 / ; 292252 ; 29225665 ;
Abstract
A piston-controlled locking mechanism including an external cylinder having annular retaining means, a first elongated piston located adjacent the cylinder and having ball lock positioning apertures in the extension, a second coaxially located piston positioned inside of the skirt of the first piston and having indentations capable of mating with the ball positioning portions of the first piston, and positioning elements for first moving the inner piston to release the balls and thereafter moving the outer piston to either release or lock the cylinder.