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. 10, 1990
Filed:
Mar. 30, 1989
Clark J Lee, Tsao Tun Town, Nantou Hsien, TW;
Other;
Abstract
The present invention provides a reversible wrench which comprises a first gear face disc having a single side profile teeth on one of its flat sides and a square central hole, and rotatably mounted in one end of the wrench body; a second gear face disc having a symmetrical single side profile teeth on one of its flat sides and a central hole which is concentrically disposed in the first disc and meshed with the first disc by the depressing of an undulated spring washer or compression spring which is axially bounded between the discs and the wrench body; a driving stud which is slidably received through the square hole of the first disc, the hole of the second disc, and the spring washer, with at least one end thereof projecting from one of the opposite sides of the wrench body; in which the second gear face disc being non-rotatably connected to the wrench body.