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:
Oct. 30, 2001
Filed:
Nov. 30, 1999
Tatsuo Inoue, Anjo, JP;
Masafumi Nogawa, Toyota, JP;
Shin Kawano, Kariya, JP;
Kimio Aoyama, Kariya, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A multi-type pulse-tube refrigerating system includes a common compressor,having a sucking port,and a discharging port,, a plurality of paralleled pressure changeover valve units,and,connecting between the sucking port,and the discharging port,of the compressor,, and a plurality of pulse-tube based cryogenic temperature generating devices,and,connected to the respective pressure changeover valve units,and,. Employing such cryogenic temperature generating devices,and,, each of which is void of moving parts, limits vibrations. Moreover, instead of the pressure changeover valve units,and,, employing a common pressure changeover valve unit,for the units,and,makes the refrigerating system more compact.