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:
Aug. 24, 2010
Filed:
Sep. 09, 2005
Kenneth D. Price, Long Beach, CA (US);
Robert C. Hon, Playa Del Rey, CA (US);
Julian A. Shrago, Garden Grove, CA (US);
Michael C. Barr, Torrance, CA (US);
Michael H. Kieffer, Redondo Beach, CA (US);
Michael J. Ramirez, Torrance, CA (US);
Kenneth D. Price, Long Beach, CA (US);
Robert C. Hon, Playa Del Rey, CA (US);
Julian A. Shrago, Garden Grove, CA (US);
Michael C. Barr, Torrance, CA (US);
Michael H. Kieffer, Redondo Beach, CA (US);
Michael J. Ramirez, Torrance, CA (US);
Raytheon Company, Waltham, MA (US);
Abstract
Disclosed are a low vibration cryocooler and a method of reducing vibration in a cryocooler. The cryocooler can be a Stirling class cryocooler includes at least one motor that drives a mass, the motor having a main drive winding and a separate trim winding. A motor controller outputs a main drive signal that is coupled to the main drive winding and a separate vibration reducing signal that is coupled to the trim winding.