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:
Jan. 04, 2022
Filed:
Sep. 23, 2019
Siemens Aktiengesellschaft, Munich, DE;
Glen Eugene Schmidt, Bartlesville, OK (US);
Kurt Bottorff, Bartlesville, OK (US);
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A fluid pressure control apparatus includes a proportional solenoid valve operatively connected between a fluid inlet and a fluid outlet and a pressure sensor fluidically coupled to the fluid outlet, wherein an electronic controller generates and outputs a control signal to the solenoid valve in dependence on a first signal from the pressure sensor and a second signal corresponding to a pressure set point, where the solenoid valve has a rest position between opened and closed, and the electronic controller is further adapted to generate the control signal with either of opposite polarities to move the valve in either of opposite directions from its rest position in order to reduce power consumption and heat generation, in particular for use in gas analysis equipment located in hazardous areas.