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:
Nov. 18, 1980
Filed:
Aug. 04, 1978
Applicant:
Inventors:
Omer E Murray, Hendersonville, NC (US);
Richard L Thompson, Hendersonville, NC (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66C / ;
U.S. Cl.
CPC ...
248404 ; 362403 ; 248320 ; 248157 ;
Abstract
Lowering and hoisting apparatus for high mast luminaires. Luminaire support ring is mounted for movement along a hollow pole by a plurality of hoist cables secured at one end to a transition plate which is located inside the pole and to which is also attached a winch cable operated by a winch at the base of the pole for raising and lowering the support ring. Both the hoist cables and the winch cable are secured to the transition plate by freely rotatable ball bearing devices to prevent the cables from twisting and tangling during the raising and lowering operations.