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:
Mar. 30, 1993
Filed:
Sep. 23, 1991
Theodore E Larsen, Edina, MN (US);
Advanced Innovations, Inc., Minneapolis, MN (US);
Abstract
A pressure responsive and pressure operative device which includes an intrinsically safe detonation circuitry particularly designed for the suppression of explosive situation where the initial indication of a developing explosion and subsequent fire is an increase in pressure within a protected volume which is normally related to a building or other structure. The device includes a directed housing serving as a cannon which holds an extinguishant containing canister which incorporates an explosive charge for producing a rapidly rising pressure within the canister for substantially instantaneous discharge of extinguishant from the canister and instantaneous release of propelling fluid pressure from a pressure supply tank for additional extinguishant propulsion. The unit is operative with only low voltage and pressure thus making the same intrinsically safe.