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:
Feb. 13, 1990
Filed:
Sep. 14, 1988
Kazuo Fujino, Tokyo, JP;
Tetsumichi Yamamoto, Tokyo, JP;
Tomohito Ikegami, Tokyo, JP;
Takeshi Yanagibayashi, Tokyo, JP;
NEC Corporation, , JP;
Abstract
A power amplifier arrangement incorporating a plurality of amplifier units and a power supply unit includes a cooling arrangement that is efficient and results in compactness of the overall power amplifier arrangement. The amplifier units and power supply unit are slideable on a shelf through the use of guiderails. Connecting means of the plug-socket type are utilized for connecting the amplifier units with the power supply unit. Cooling air chambers are disposed adjacent to the amplifier units and include nozzles directed onto a radiation plate on which heat-producing amplifier devices are mounted.