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:
Jul. 28, 1992
Filed:
Nov. 28, 1989
Volker Huennebeck, Berlin, DE;
Auergesellschaft GmbH, , DE;
Abstract
A mouthpiece valve for breathing equipment which utilizes a spring-loaded axially movable valve disc to close the connection to the breathing equipment when the valve is in an inoperative position. To lock the valve in the closed position, it is provided with two tapered pins which are externally inserted into the cover of the valve casing and which abut a curved member which is in operative connection with the valve disc via a valve stem. The two tapered pins are secured by a safety bridge placed on the cover which locks the curved member to the valve stem and the valve disc and maintains the valve in a closed position. To open the closed valve, the safety bridge is removed in a single motion, preferably by means of a cord disposed on a nose clip when the nose clip is put on for use of the breathing equipment.