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. 07, 2000
Filed:
Oct. 20, 1998
Applicant:
Inventor:
Mark W Hanes, Goleta, CA (US);
Assignee:
Superconductor Technologies, Inc., Santa Barbara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ; F01B / ; H02K / ;
U.S. Cl.
CPC ...
62-6 ; 60520 ; 310 15 ;
Abstract
A cryocooler having an improved linear motor assembly. The cryocooler comprises a displacer unit, heat exchanger unit and compressor and linear motor assembly. The compressor and linear motor assembly includes a linear motor having both a stationary internal return iron element and a moving internal return iron element, thus enabling the motor to operate at a predetermined resonant frequency. In a preferred form, the compressor and linear motor assembly comprise a unitary structure.