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:
Jun. 02, 1992
Filed:
May. 09, 1990
Applicant:
Inventor:
Masafumi Take, Tokyo, JP;
Assignee:
Seiko Instruments, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F17C / ;
U.S. Cl.
CPC ...
62 481 ; 219497 ; 236 78 ;
Abstract
A system for controlling the heater of a liquid nitrogen vaporization type cooling system includes a heater power computer circuit, a comparator, a synchronizing pulse generating circuit, an integrating circuit and a relay for automating the heater control to adjust the vaporization rate of the liquid nitrogen automatically.