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. 11, 2012
Filed:
Jan. 27, 2009
Nicholas John Clayton, Oxford, GB;
Neil Charles Tigwell, Witney, GB;
Stephen Paul Trowell, Finstock, GB;
Nicholas John Clayton, Oxford, GB;
Neil Charles Tigwell, Witney, GB;
Stephen Paul Trowell, Finstock, GB;
Siemens Plc, Frimley, Camberley, Surrey, GB;
Abstract
The present invention provides a cryostat comprising a cryogen vessel (), a thermal radiation shield (), and a sleeve () for accommodating a cryogenic refrigerator. Also provided is a first thermal contact for thermally and mechanically connecting a first stage of a cryogenic refrigerator to the radiation shield for cooling thereof. A secondary recondensing chamber is provided () for accommodating a second stage of a cryogenic refrigerator, and means () are provided for thermally connecting the secondary recondensing chamber to a recondensing surface () exposed to the interior of the cryogen vessel. The cryostat further comprises a pressure control arrangement () for controlling the pressure of a gas within the secondary recondensing chamber.