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:
Jul. 06, 1976
Filed:
Sep. 30, 1975
Anthony D Calabro, Upper Darby, PA (US);
Other;
Abstract
Apparatus for uniformly cooling an array of printed circuit boards mounted in a card holding means includes a high velocity centrifugal fan which is in communication with a plenum chamber secured to the lower end of the card holding means. Disposed in the plenum chamber is a perforated screen configured to include a series of crests and troughs which operate as baffle means for providing resistance to the flow of high velocity air from the blower. The screen causes turbulence which reduces the velocity and uniformly directs the airflow through openings in the plenum chamber to the spaces between the array of printed circuit boards. The airflow thus divided cools each card on both sides as the air flows from bottom to top, thereby displacing the warmer air heated by the components mounted on the printed circuit boards.