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:
Aug. 31, 1976
Filed:
Jun. 16, 1975
Brady Glenn Johnson, Newark, OH (US);
Robert Dale Zeller, Newark, OH (US);
Johns-Manville Corporation, Denver, CO (US);
Abstract
An auxiliary assembly for use with an apparatus which raises and lowers a luminaire support ring along a support pole and which supports the ring during this movement is disclosed herein. The apparatus includes a main drive, a main cable connected to the drive and a plurality of secondary cables connecting the main cable and therefore the main drive to the luminaire support ring. The auxiliary assembly includes an auxiliary supporting arrangement connected with the main cable of the apparatus whereby to support the ring in the event there is a failure of either the main cable or the main drive to support the ring. This assembly also includes a device for automatically and substantially immediately sensing the presence of such a failure and for automatically providing a predetermined signal at substantially the moment of failure. In addition, the assembly includes a device which cooperates with the auxiliary supporting arrangement for at least slowing down, preferably stopping, movement of the luminaire support ring in response to the failure indicating signal.