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. 26, 1983
Filed:
Sep. 15, 1980
Applicant:
Inventor:
Robert A Nordmeyer, Woodland Hills, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23Q / ;
U.S. Cl.
CPC ...
269 25 ; 60583 ; 60589 ; 60593 ; 269 32 ; 269 93 ;
Abstract
A two step pressure intensifier adapted for use as a clamp or a via including a housing cylinder which sealingly houses a telescoping cylinder. The telescoping cylinder is extended rapidly outward by application of low pressure to hydraulic fluid within the telescoping cylinder. Upon meeting resistance, the extension speed of the telescoping cylinder is slowed down and high presssure is applied. The use of a small diameter force input rod or piston is encompassed by a close fitting input portion of the telescoping piston so that the two pistons move together during a portion of both their force and retraction strokes.