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. 04, 1989
Filed:
Jan. 28, 1988
Applicant:
Inventor:
Bulent Gulistan, Malibu, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
81416 ; 81415 ;
Abstract
Locking fasteners for pivotal tools which will not loosen during use and which apply a constant pressure between pivotal tool members. A pivot screw is provided with a holow inner bore in which a securing screw is inserted to cause binding engagement with a portion of the wall formed by the opening in which the pivot screw is inserted. In one embodiment, the securing screw causes expansion of the pivot screw shaft. In another, the securing screw actuates a compressible member which engages the wall. In the event of looseness between the two pivotal parts as a result of shock or for any other reason, the securing screw may be actuated to permit tightening or readjustment of the pivot screw.