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. 09, 2001
Filed:
Apr. 21, 2000
Bruce Anders, Bethel, AK (US);
Irving Anders, Cottage Grove, WI (US);
Jilbe Enterprises, L.L.C., Cottage Grove, WI (US);
Abstract
A roof venting apparatus is mounted to a firefighting vehicle's aerial extension ladder, where a semi-cylindrical, double-pointed lance is dropped and raised onto and through the roof of a burning structure as many times as necessary to properly vent the burning building. The lance is dropped and raised by a free-spooling, electric braking winch, which is mounted to an anchor board securely hooked onto the bottom rungs of a fire truck's aerial extension ladder, and which is operated by a fire fighter on the ground who mans a toggle control panel welded onto the lower anchor board. The winch cable extends up the length of the extended aerial ladder, through a series of stabilizing, free-wheeling idler wheels mounted to another removable anchor board screwed onto the top rungs of the truck's extension ladder. The lance, if hollow, is transported to the scene of the fire empty, where it can be filled with water with the fire hose, to establish the necessary dropping weight. After its use, it is emptied through the drain hole at the base of the lance when the fire has been controlled and the lance is ready to be transported back to the station.