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:
Jan. 14, 2003
Filed:
Sep. 18, 2001
Applicant:
Inventor:
Victor Hung, Lu Chu Hsiang, TW;
Assignee:
Shin Fu Corporation, Tao Yuan, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60P 1/48 ;
U.S. Cl.
CPC ...
B60P 1/48 ;
Abstract
A jack with a rotary handle sleeve is disclosed. The handle sleeve of a jack is locked to a rotary supporting seat The rotary supporting seat passes through the pump and washers to be locked to the base of the jack. Thereby, handle sleeve may rotate rightwards and leftwards. The oil return valve is connected to a flexible shaft for controlling the opening and closing of the oil return valve A steel ball bearing or a thrust bearing can be installed between the rotary supporting seat or the base of the jack so that the handle sleeve may rotate freely. The handle sleeve and the rotary supporting seat have a design for confining the lower limit.