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:
Feb. 22, 1994
Filed:
Sep. 11, 1991
Applicant:
Inventors:
Anthony V Beran, Santa Ana, CA (US);
Gordon Y Shigezawa, Irvine, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ; A62B / ; F16K / ; A61B / ;
U.S. Cl.
CPC ...
12820423 ; 12820425 ; 128725 ; 73716 ; 7386152 ; 7386163 ;
Abstract
A pneumotach gas flow transducer having strain gauge pressure transducers disposed therein for disposition in a selected element or component of a ventilatory circuit. A differential pressure is communicated from the upstream and downstream sides of a flow restrictor in the element's passageway to the transducers via a barrier medium which fills holes in the element and contacts the transducer elements.