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:
Feb. 12, 1991
Filed:
Aug. 10, 1990
Applicant:
Inventor:
Clark J Lee, Tsao Tun Town, Nantou Hsien, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
81 60 ; 81185 ;
Abstract
The present invention provides a socket comprising a barrel of uniformal polygonal cross section having an axial polygonal wrenching aperture at the center and a slant inward chamfer at the outer surface of each end of the barrel. The socket is detachably received by a driver wheel of a ratchet wrench, in which the driver wheel has a polygonal receiving hole corresponding to the polygonal barrel, and a pair of ring detents are mounted in the opposite openings of the receiving hole to elastically grip the socket at the chamfers respectively.