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. 06, 1976
Filed:
Feb. 12, 1975
Bernard L Kunz, Collinsville, IL (US);
Emerson Electric Co., St. Louis, MO (US);
Abstract
An expansion valve for a refrigeration system is provided in which the flow through the expansion valve is controlled electrically. The preferred valve embodiment utilizes a straight line configuration in that a valve body is mounted within a suitable shell. The valve body has an axial opening through it, and one end of the valve body defines an expansion port. A valve pin is movably mounted between a first position closing the expansion port and a second position opening the expansion port. Electrically energizable means are mounted to the valve body. The electrically energizable means include thermostatic expansion means operatively connected to the valve pin. The thermostatic expansion means expand axially in response to temperature change, which movement actuates valve pin operation, between closed and opened positions.