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:
Jun. 09, 1998
Filed:
Sep. 06, 1996
Applicant:
Inventors:
Lawrence C Arvidson, New Brighton, MN (US);
Robert S Horeck, Fridley, MN (US);
Assignee:
Hypro Corporation, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 31 ; 361 23 ;
Abstract
A fire extinguishing system in which a calculated quantity of a liquid chemical foamant is introduced into the main water stream being directed at a fire equipped with a protective circuit for limiting the amount of average current flowing within a motor driving a fluid pump used to inject the chemical foamant, in addition to an electronic fuse circuit for automatically shutting off the power being supplied to the low-level electronics.