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:
May. 07, 1996
Filed:
Mar. 14, 1994
Applicant:
Inventors:
Fred P Smith, Alpine, UT (US);
William R Johnson, American Fork, UT (US);
Fred T Smith, Alpine, UT (US);
Assignee:
Heil Company, Chattanooga, TN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60P / ;
U.S. Cl.
CPC ...
298 / ; 298 / ; 298220 ;
Abstract
A hoist mechanism including a hoist subframe, a body subframe, a dump linkage pivotally coupling the body subframe to the hoist subframe such that the body subframe pivots about an instant center which moves continuously as the body subframe pivots and an actuator for moving the body subframe between a lowered position and a raised position. The instant center is positioned at a point below the hoist subframe with the body subframe in the lowered position, and progresses to a point above the hoist subframe as the body subframe is lifted to the raised position.