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. 07, 2012
Filed:
Feb. 03, 2005
Yasukazu Tokuhisa, Mie-ken, JP;
Takao Gotoh, Mie-ken, JP;
Tohru Matsuoka, Mie-ken, JP;
Shigehiro Suzuki, Mie-ken, JP;
Yasukazu Tokuhisa, Mie-ken, JP;
Takao Gotoh, Mie-ken, JP;
Tohru Matsuoka, Mie-ken, JP;
Shigehiro Suzuki, Mie-ken, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A mass flow rate-controlling apparatus including a mass flow rate-detecting mechanisma flow rate-controlling valve mechanismand a mechanismfor controlling the flow rate-controlling valve mechanism based on a flow rate-setting signal Sinput from outside and a flow rate signal S, the flow path being provided with a pressure-detecting mechanismfor detecting the pressure of the fluid to output the detected pressure signal, so that the controlling mechanism selectively switches a first control mode for controlling the mass flow rate based on the flow rate signal and the flow rate-setting signal without using the detected pressure signal, and a second control mode for controlling the mass flow rate based on the detected pressure signal, the flow rate signal and the flow rate-setting signal, based on a pressure variation obtained from the detected pressure signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile