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:
Jan. 31, 1995
Filed:
Apr. 13, 1993
R Arnold Baker, Manson, WA (US);
John L Baker, Wenatchee, WA (US);
Other;
Abstract
An airborne foam delivery apparatus is adapted to be carried as a slung bucket beneath a helicopter to deliver a high volume of fire suppressant foam for wildland firefighting. The delivery apparatus comprises a liquid tank for holding a foamable liquid. A support frame extends downward from the liquid tank to support the liquid tank above the ground during ground operations. Three nozzles are directed generally downwardly from beneath the liquid tank within a protective apron. A liquid valve is positioned between the liquid tank and the each nozzle. Each liquid valve is remotely operable to allow passage of the foamable liquid through the corresponding nozzle. A pressure regulator is connected to receive compressed air from gas containers mounted within the liquid tank, and to controllably discharge the compressed air into the liquid tank to maintain a positive regulated pressure within the liquid tank. The positive pressure expels the foamable liquid through tile nozzles when tile liquid valves are operated. An aerating screen is positioned beneath each nozzle to aerate and foam the foamable liquid as it emerges from the nozzle.