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.

Date of Patent:
Oct. 01, 1985

Filed:

Mar. 29, 1983
Applicant:
Inventors:

Thomas E Warman, Williamsburg, OH (US);

Gordon P Baker, Amelia, OH (US);

James E Smith, Boulder, CO (US);

Assignee:

Sencorp, Cincinnati, OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25C / ; B25C / ; B25F / ;
U.S. Cl.
CPC ...
227131 ; 227134 ;
Abstract

A driver return assembly for an electro-mechanical fastener driving tool. The tool is of the type provided with a driver which is frictionally moved through a working stroke by means of an electrically driven flywheel which presses the driver against a support element, such as a counter rotating flywheel, a low inertia roller, or the like. The driver return assembly comprises at least one elastomeric cord being attached at one of its ends to the driver and at the other of its ends to an anchor within the tool. The at least one elastomeric cord, between its ends, passes about at least two pulleys. One of the pulleys is mounted on a spring supported shaft to compensate for stretch of the at least one elastomeric cord to assure that the driver is returned to its normal, retracted position after each working stroke.


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