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:
Nov. 22, 2016
Filed:
Feb. 02, 2015
Eaton Corporation, Cleveland, OH (US);
Daniel Lee Pifer, Chelsea, MI (US);
Raymond Bruce McLauchlan, Macomb Township, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
An isolation valve may include a flow restrictor disposed in a passage having non-parallel sides, the flow restrictor having an orifice. A flow restrictor spring may apply a biasing force on the flow restrictor to bias the flow restrictor to an open position. A solenoid assembly may include having a coil and an armature that may be moveable between (i) an extended position that overcomes the biasing force of the restrictor spring to move the flow restrictor to a closed position and to close the second orifice, and (ii) a retracted position to open the orifice. If the coil is energized, the armature may move to the retracted position to allow vapor to flow through the orifice at least until the biasing force of the flow restrictor spring overcomes a vapor pressure. The open position of the flow restrictor may allow vapor to flow through a space between the flow restrictor and the passage.