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:
Sep. 21, 1982
Filed:
Jun. 19, 1981
Applicant:
Inventor:
Exequiel de la Cruz, Palatine, IL (US);
Assignee:
Respiratory Care, Inc., Arlington Heights, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F / ; A61M / ;
U.S. Cl.
CPC ...
261 65 ; 12820011 ; 12820523 ; 137859 ; 2611 / ;
Abstract
An adapter for connection between an oxygen flowmeter and a water bottle whose contents humidify oxygen fed to a patient. An audible duckbill valve is mounted on a valve seat transverse to the longitudinal axis of the connector. When oxygen pressure through the connector becomes excessive, the valve opens, producing an audible sound to alert an attendant to the condition.