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:
Dec. 08, 2015
Filed:
Dec. 31, 2013
Jansen's Aircraft Systems Controls, Inc., Tempe, AZ (US);
Harvey B. Jansen, Mesa, AZ (US);
David G. Hayward, Scottsdale, AZ (US);
JANSEN'S AIRCRAFT SYSTEMS CONTROLS, INC., Tempe, AZ (US);
Abstract
A sealed solenoid provides an improved actuator for valves and other devices, particular such devices used in extreme environments and/or with corrosive media. For example, the improved solenoid construction can be used to drive a precision flow control valve used in air and space applications, such as to control fuel and oxidizer combustion media in rocket and other thrust components. The solenoid is retained in a solenoid retainer to which is attached a rigid barrier that isolates the solenoid pole piece and coil from the media. A clapper disposed outside the barrier from the solenoid serves as the armature, receiving magnetic flux from the solenoid through the barrier without interference from the barrier. The barrier may be extremely thin and magnetically inert.