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:
Aug. 06, 1996
Filed:
Mar. 20, 1995
Larry C Huetsch, Rockford, IL (US);
Other;
Abstract
A jack of the type having inner and outer legs and a screw for extending and retracting the inner leg relative to the outer leg. The screw is mounted on a base fixed to the outer leg for rotating and limited endwise movement between the upper and lower positions relative to the base such that the screw and inner leg can move downwardly to the lower position when the inner leg is out of ground engagement and the inner leg moves the screw toward the upper position when the leg engages the ground. A rotary drive member is mounted for rotation relative to the base about the axis of the screw and a transmission mechanism responsive to rotation of the drive member drives the screw at a high speed ratio when the screw is in the lower position and at a low speed ratio when the screw is in the upper position.