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:
Apr. 21, 1992
Filed:
Jul. 29, 1991
Applicant:
Inventors:
Willibald Neubauer, Seattle, WA (US);
Allen L Luft, Bellevue, WA (US);
Michael C Burkey, Woodinville, WA (US);
Assignee:
Genie Industries, Inc., Redmond, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187 / ; 182148 ;
Abstract
A portable telescopic hoist has an auxiliary tilt-back frame at the rear for supporting the hoist when it is tilted from its normal upright position to a backward sloped position to clear an overhead restriction. The tilt-back frame has a strut with a gas spring therein having a nearly constant spring force. This strut has a downwardly sloped operating position from a detachable connection at the back of the mast of the hoist.