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. 04, 2006
Filed:
Jan. 10, 2004
Todd J. Bacon, Northville, MI (US);
Richard A. Robb, West Bloomfield, MI (US);
Todd J. Bacon, Northville, MI (US);
Richard A. Robb, West Bloomfield, MI (US);
Herkules Equipment Corporation, Walled Lake, MI (US);
Abstract
A lifting apparatus comprising: one of a mobile/or and stationary base; a lift platform having a geometric first center, the lift platform movable relative to the base from a lowered position to an upper position; a linkage or linkage mechanism interconnecting the base and the lift platform for guiding the base and the lift platform to stay in a generally mutually parallel relationship as the lift platform moves relative to the base; the base, lift platform and linkage configured so that when the lift platform in its lowered position the first center intersects the base at a first point and with the lift platform in its upper position the first center intersects the base at a longitudinally off-set second point; and a fluid (fluid/pneumatic) control spring operatively mounted between the lift platform and the base, for controllably lifting and lowering the lift platform.