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. 25, 2014
Filed:
Jan. 10, 2011
David G. Hayward, Scottsdale, AZ (US);
David G. Hayward, Scottsdale, AZ (US);
Jansen's Aircraft System Controls, Inc., Tempe, AZ (US);
Abstract
A fast acting flow control valve uses an electronically-actuated, short-stroke 3-way pilot poppet to actuate a primary poppet valve, for example, to provide impulse thrust to an air or space vehicle. The pilot poppet arrangement has an electromagnetic actuator for positioning the pilot poppet with respect to first and second seats. When the pilot poppet is sealed against the first seat a pressure passage communicates with seat openings and a vent passage of the valve is blocked from the seat openings. When the pilot poppet is sealed against the second seat the pressure passage is blocked from the seat openings and the vent passage communicates with the seat openings. The primary valve arrangement has a primary poppet that seals against a primary seat when the pilot poppet is sealed against the first seat and is unseated when the pilot poppet is sealed against the second seat.