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. 26, 1989
Filed:
Dec. 30, 1987
Applicant:
Inventor:
Stephen J Cook, Loveland, CO (US);
Assignee:
Hewlett-Packard, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ; G01R / ;
U.S. Cl.
CPC ...
3241 / ; 324 / ;
Abstract
A pre-loaded compression spring assembly is described which preferably includes a compression spring, a base plate to support one end of the spring, and a flexible retention member which extends over the opposite end of the spring and which is adapted to retain the spring in a pre-loaded condition on the base plate. The spring assembly is compressed when force is applied to the upper end of the spring. The spring assembly has a variety of uses, including for example use in circuit board testing apparatus.