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. 04, 2007
Filed:
Aug. 15, 2002
Ronald James Kelley, Coral Springs, FL (US);
Steven Duane Pratt, Fort Lauderdale, FL (US);
Robert Pennisi, Boca Raton, FL (US);
Sivakumar Muthuswamy, Plantation, FL (US);
Ronald James Kelley, Coral Springs, FL (US);
Steven Duane Pratt, Fort Lauderdale, FL (US);
Robert Pennisi, Boca Raton, FL (US);
Sivakumar Muthuswamy, Plantation, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A gas pressure regulator () includes a mechanical primary stage (), preferably including a spring valve, and an electronic secondary stage (), preferably including a micromachined pressure regulator, the combination of the mechanical primary stage and the electronic secondary stage suitable for relatively precise low pressure near zero flow rates with reasonable energy consumption rates, such as encountered when supplying fuel to a low power fuel cell system.