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:
Apr. 10, 2001
Filed:
Jul. 20, 1998
Robert R. Choo, Los Angeles, CA (US);
David G. Cornog, Los Angeles, CA (US);
Hughes Electronics Corporation, El Segundo, CA (US);
Abstract
A terrestrial thermal vacuum system that tests spacecraft by developing a thermal balance having a margin of error of less then 5% and preheats spacecraft prior to terrestrial thermal vacuum testing are disclosed. In operation, working fluid is pumped through a cooling plate that receives heat from the spacecraft and then passes through a heat exchanger where the heat is discarded. The temperature of the working fluid is measured at both the supply and return portions of the cooling plate and the flow rate determined for the fluid. From these measurements an initial heat flow from the spacecraft is determined and an equivalent amount of heat is added back to the spacecraft at the appropriate location. The process is repeated until thermal balance is achieved. Also disclosed is a method for designing the cooling plate used by the above described system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile