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. 20, 1996
Filed:
Sep. 24, 1993
Katherine M Grant, deceased, late of Bellflower, CA (US);
Frederic F Grant, Bellflower, CA (US);
Other;
Abstract
Any one of several rotary objects of various diameters is gripped between a pair of joined jaws, without a need for manual adjustment of such jaws to any of the various diameters. To this end, the jaws are spaced at a taper to each other for all of the various diameters, and are pivoted, biased and rendered moveable relative to each other in diminution of that taper against the bias and conversely in self-restoration of the taper by the bias upon a release of the object from the jaws. Any one of the rotary objects may be wedged between the jaws at the taper, and one of the jaws is propelled with such wedged rotary object against the bias relative to the other jaw of the pair in diminution of the taper until the jaws exert optimum grip on the object. A loosening or other operation may then be performed on the wedged rotary object, and such wedged rotary object may be released from the jaws [for self-restoration of the taper by the bias.