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:
Oct. 07, 1986
Filed:
Aug. 09, 1985
Grant M Smith, Bryn Athyn, PA (US);
Samuel R Romania, Phoenixville, PA (US);
Vladimir M Tamarkin, Philadelphia, PA (US);
Burroughs Corporation, Detroit, MI (US);
Abstract
The present disclosure describes an air sampling system which is particularly effective in detecting minute quantities of smoke caused by electrical short circuits in equipment housed in an air cooled cabinet. More, specifically, the system is useful where large number of rack-mounted printed circuit cards are employed. The system employs air sampling cylinders mounted in proximity to the cards, and through the establishment of a pressure differential, causes an air sample to be drawn into the tubes and through a detector box which includes a smoke detection unit. The presence of smoke is conveyed to a control box which responds by removing electrical power to the cards, thereby averting further damage to the cards or surrounding structures.