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:
Oct. 13, 1987
Filed:
May. 13, 1986
Holmer Rohling, Reinfeld, DE;
Dragerwerk AG, , DE;
Abstract
A mixing and proportioning device for flowing media, which has feeding lines equipped with a pressure reducer for each line that leads through a mixing chamber and a mixed gas discharge pipe is constructed so that the mixing device closes independently of the supply pressure in the feeding lines, as the pressure differential between the mixing chamber and gas discharge chamber drops below the initially set value. For this purpose, the mixed gas discharge channel is connected to a gas discharge chamber, which is separated from the mixing chamber by a pressure-sensitive spring-mounted device, and this device has a connecting channel equipped with a closing arrangement valve disposed between the mixing chamber and the gas discharge chamber.