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. 18, 1979
Filed:
Nov. 03, 1977
Otfried W Heybey, Niles, MI (US);
Whirlpool Corporation, Benton Harbor, MI (US);
Abstract
A thermally responsive sensor assembly such as for use in providing a warning signal indicating a sensed high temperature condition within a refrigeration apparatus. The sensor assembly includes a temperature detector embedded in a body of synthetic resin material. The detector is disposed within the resin body so as to provide an integrated sensing of the temperature condition existing outwardly of the body. The temperature condition is transmitted to the temperature detector within the body under the joint control of the surface heat transfer coefficient of the body, the thermal conductivity of the body material, and the heat capacity of the body. The resin material preferably has a substantially constant thermal diffusivity over the desired operating range of the sensor assembly. Further, the resin material may have a substantially constant low thermal conductivity over the desired temperature range. The resin material may be a styrenic resin material, such as high impact polystyrene. Alternatively, the resin material may be a rigid polyvinyl chloride material. The thermal path through the resin material to the embedded temperature sensing detector may be approximately 5/16'.