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. 25, 2003
Filed:
Jun. 18, 2001
Jack Lee, May-Shan Hsiang, Chia-Yi Hsien, TW;
Other;
Abstract
A switch device of a socket wrench extension includes a connecting shank formed with an axial circular hole receiving a restoring member and a drive rod, and a radial hole receiving a positioning ball. The drive rod has a tapered face and an insertion recess. A drive block is received in a radial oblong slot of the connecting shank, and has an insertion block that,may be inserted into the insertion recess of the drive rod. The drive block has a spring recess receiving a spring and a positioning pin. A control ring mounted on the connecting shank may move the drive block and the drive rod, whereby the positioning ball may be moved along the tapered face to sink into the radial hole, so that the connecting shank can be detached from the socket easily and quickly.