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:
Jul. 19, 1988
Filed:
Jul. 28, 1987
Applicant:
Inventor:
Bartley A Haydu, Anderson, IN (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
A62B / ;
U.S. Cl.
CPC ...
12820126 ; 12820123 ;
Abstract
An emergency exit respiratory mask device comprises a rebreathing bag, a face mask, and a head-covering cap, all formed of a single sheet of flexible transparent plastic. The sheet is folded upon itself and sealed along selected margins thereof to determine the boundaries of the bag, a filling and emptying passageway to the bag, and the cap. A mouthpiece is provided at the distal end of the passageway. A whistle is provided in the mouthpiece. An inflating spring is employed in the bag. Printed instructions are provided inside the bag and are readable through the bag material.