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. 20, 2005
Filed:
Jul. 17, 2003
Gerrit Jan Baarda, Emmen, NL;
Derk Vegter, Neuw-Amsterdam, NL;
Gerrit Jan Baarda, Emmen, NL;
Derk Vegter, Neuw-Amsterdam, NL;
Honeywell International, Inc., Morristown, NJ (US);
Abstract
A gas flow controller includes a control valve coupled for actuating a main valve. In one example embodiment, a gas flow controller includes a main valve and a servo valve operated by an actuator, said servo valve being used for controlling the opening of the main valve. The servo valve is implemented in a variety of manners, such as a three-way valve means or as a double two-way valve. The servo valve further communicates, via gas pipes, with a first gas chamber limited by a diaphragm being in operative connection with the main valve, as well as to a second gas chamber in the inlet area, and a third gas chamber in the outlet area.