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. 12, 2019
Filed:
Sep. 27, 2012
Oxford Instruments Nanotechnology Tools Limited, Oxfordshire, GB;
John Garside, Witney, GB;
Matthias Buehler, Abingdon, GB;
Daniels Tortorella, Abingdon, GB;
Xing Yuan, Abingdon, GB;
Oxford Instruments Nanotechnology Tools Limited, Oxfordshire, GB;
Abstract
Apparatus for controlling a cryogenic cooling system is described. A supply gas line (A) and a return gas line (B) are provided which are coupled to a compressor () and to a mechanical refrigerator () via a coupling element (). The coupling element is in gaseous communication with the supply (A) and return gas lines and supplies gas to the mechanical refrigerator (). The pressure of the supplied gas is modulated by the coupling element in a cyclical manner. A pressure sensing apparatus () monitors the pressure in at least one of the supply and return gas lines. A control system () is used to modulate the frequency of the cyclical gas pressure supplied by the coupling element in accordance with the pressure monitored by the pressure sensing apparatus. An associated method of controlling such a system is also described.