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:
Dec. 29, 1992
Filed:
Oct. 22, 1991
Jerry W Pittman, Dallas, TX (US);
Other;
Abstract
A screw jack incorporating a quick retract mechanism to permit movement of the jack into engagement with the ground such that only limited rotation of the screw is necessary for elevating the tongue of a trailer for disengaging a coupler on the trailer from a trailer hitch. The screw-type jack incorporates an improved handle which is rotatable about a horizontal axis between an active position for rotating the screw about a vehicle axis and a stowed position wherein the handle engages the body of the jack to prevent rotation of the screw. A support for the screw jack which incorporates improved versatility such that it can be interchangeably used on other jacks and can be used in applications involving uneven and/or non-level surface conditions.