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:
May. 24, 2011
Filed:
Jun. 15, 2008
Julian Patrick Zagni, Yeovil, GB;
Paul Leadley, Yeovil, GB;
Julian Patrick Zagni, Yeovil, GB;
Paul Leadley, Yeovil, GB;
Honeywell Normalair-Garrett (Holdings) Limited, Yeovil, Sommerset, GB;
Abstract
A hydraulic heating apparatus includes a body having an inlet for high pressure fluid, and an outlet for heated fluid, a chamber within the body and a flow path for the high pressure fluid between the inlet and the chamber. The high pressure fluid flows through a restriction in the flow path between the inlet and the chamber whereby the apparatus becomes heated. The working fluid flowing from the inlet to the chamber must pass through an orifice which is closable by a linearly acting closure structure. The closure structure is urged to a position in which the closure structure closes the orifice when the pressure of the high pressure fluid is below a threshold pressure. The closure structure includes a thermally sensitive material which expands in response to increasing temperature to close the orifice in response to a temperature above a threshold temperature.