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. 29, 1979
Filed:
Sep. 27, 1976
Thomas F Roche, Merrimac, MA (US);
Other;
Abstract
An explosion-proof emergency light. The emergency light includes an explosion-proof housing containing a rechargeable battery, a sealed-beam light and emergency electronics for providing a charging current for the battery and for connecting the sealed-beam light to the battery upon loss of AC line voltage. Access is provided to the interior of the explosion-proof emergency light through a circular cover containing an explosion-proof glass window through which emergency illumination is provided. The sealed-beam light is located eccentrically with respect to the glass window; and indicator lights for denoting the charge state of the rechargeable battery and the presence of AC current are mounted above the sealed-beam light, both being disposed in the cresent-shaped area formed by the aforesaid eccentric mounting, so as to be visible from the exterior of the explosion-proof emergency lamp.