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:
Jul. 23, 1991
Filed:
May. 29, 1990
Niels P Thorsen, Sydals, DK;
Bjarke Hallenslev, Nordborg, DK;
Danfoss A/S, Nordborg, DK;
Abstract
The temperature sensitive apparatus controls fluid flow from one line to others and includes an elongated wire of a shaped memory wire that changes in length with changes in temperature extended into a valve housing for pivotally moving valve mechanism in the valve housing against the action of a spring from a fluid flow blocking position to a position permitting fluid flow upon heating the wire. The wire is connected to the valve mechanism and extends through a tube, both of which extend exterior of the valve housing with the major portion of the length of the wire being exterior thereof. The tube extends into a connecting member housing that is attached to the exterior of the valve housing and contains mechanism surrounding the tube to heat the wire. The tube is substantially thermally insulated from the interior of the valve housing. The heating mechanism may include a generator for an electric alternating field to induce a heating current in the wire, or an A.C. voltage coil to have a magnetic field which is linked to a closed electric circuit in which the wire is disposed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile