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:
Aug. 15, 1989
Filed:
Apr. 14, 1988
Applicant:
Inventor:
David L Freeman, Sperry, OK (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
811772 ;
Abstract
An adjustable length extension tool is disclosed for interconnection between a driving tool, such as a socket wrench, and an object to be driven, such as a screw or bolt. An extension housing body includes a shaft that can move reciprocally within a bore therein; one end of the sleeve member includes a box opening for interconnection with the driving tool and one end of the shaft includes a box pin for interconnection with a socket. An adjustable compression sleeve is received around the shaft to limit the movement and drag of the shaft within the bore thereby providing infinite length adjustability.