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.

Date of Patent:
Apr. 11, 2006

Filed:

May. 18, 2004
Applicants:

Bayram Arman, Grand Island, NY (US);

James J. Volk, Clarence, NY (US);

Steve A. Richards, Somerset, NJ (US);

M. Mushtaq Ahmed, Pittsford, NY (US);

Arun Acharya, East Amherst, NY (US);

Inventors:

Bayram Arman, Grand Island, NY (US);

James J. Volk, Clarence, NY (US);

Steve A. Richards, Somerset, NJ (US);

M. Mushtaq Ahmed, Pittsford, NY (US);

Arun Acharya, East Amherst, NY (US);

Assignee:

Praxair Technology, Inc., Danbury, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25D 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for operating a cryocooler which provides opportunity for timely intervention prior to failure thus enhancing the reliability of the provision of the refrigeration wherein contaminant concentration downstream of a compressor but upstream of the cryocooler is monitored and the time rate of change of the contaminant concentration is used to calculate a service time.


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