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:
Dec. 07, 1999
Filed:
Jan. 06, 1998
Linsey J Swann, Vancouver, CA;
Brookdale International Systems, Inc., Vancouver, CA;
Abstract
An air filtration unit is carried within a closed canister whereby upon removal of the cover, ambient air may be filtered through the filtration unit and supplied to a user. In one form, the canister is applied to a fitting of a fireman's gas mask or hose portion of the fireman's supplied air respiratory system such that in the event of system failure or exhaustion of the supplied air, the supplied air system can be disconnected and the canister applied to the gas mask or air hose fitting. A locator in the form of an apertured nose cone is projected under spring bias from the canister body to guide the canister into securement with the face mask or hose fitting. The filtration unit is also provided in the canister with shock-resistant mountings. In another form, the canister is provided with a mouthpiece, a plenum having inhalation and exhalation valves, and a hood. By removing the cover, the individual may don the hood and inhale filtered ambient air through the mouthpiece with exhaled air flowing into the hood and about an escape path defined between the hood and the user's neck.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile