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. 02, 1982
Filed:
Oct. 20, 1980
Applicant:
Inventors:
Erik Schwanbom, Lubeck, DE;
Karl Hickmann, Lubeck, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
12820312 ; 12820019 ; 12820524 ; 137110 ;
Abstract
An improved fresh gas device includes a gas mixer connected to a source of oxygen and to a source of at least one other gas for mixing oxygen to form a gas mixture to be supplied to a patient. A line bypasses the mixer and is provided with a switch for initiating pressure pulses in the bypass line and a pneumatically operated valve is provided downstream of the mixer and is controllable responsive to the pressure in the bypass line.