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:
Jun. 29, 1976
Filed:
Feb. 13, 1975
Applicant:
Inventors:
John R Colston, Annapolis, MD (US);
Wilbur J O'Neill, West Severna Park, MD (US);
Assignee:
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62B / ;
U.S. Cl.
CPC ...
1281423 ;
Abstract
Underwater breathing apparatus which includes means for reducing the power required to operate the pumps that effect flexible-hose interchange of breathing gas to and from a diver and a diving bell. This is accomplished primarily by maintaining a substantially constant differential between the supply and return pressures.
Colston, John. (1976). Underwater breathing apparatus (U.S. Patent No. 3965892). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3965892
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile