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. 08, 1980
Filed:
Aug. 21, 1978
Applicant:
Inventor:
Vernon G Pedersen, Chicago, IL (US);
Assignee:
Dacor Corporation, Northfield, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A62B / ; B63C / ;
U.S. Cl.
CPC ...
12820425 ; 137494 ; 137D / ; 251 24 ; 12820429 ;
Abstract
A demand regulator for use in underwater breathing employs a deflector carried by a valve operating lever for movement between the air outlet in the breathing chamber and the mouthpiece tube to reduce the portion of air supplied directly to the mouthpiece as the air flow is increased.