Browse Prior Art Database

Acoustical Enclosure

IP.com Disclosure Number: IPCOM000084110D
Original Publication Date: 1975-Sep-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Goplen, FA: AUTHOR [+3]

Abstract

An acoustical enclosure is provided for data processing machines such as impact printers having forced air circulation. The enclosure is structured whereby ambient intake air is isolated from warmed exhaust air. This effectively reduces the temperature within the machine. The paths of the intake and exhaust air are folded by rubber foam covered walls and. this reduces the noise level of the machine. To further reduce the noise level, where the machine is a printer, a cover is hinged to the acoustical enclosure so as to normally cover the paper inlet. The cover is pivotable away from the paper inlet to facilitate paper loading.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 57% of the total text.

Page 1 of 2

Acoustical Enclosure

An acoustical enclosure is provided for data processing machines such as impact printers having forced air circulation. The enclosure is structured whereby ambient intake air is isolated from warmed exhaust air. This effectively reduces the temperature within the machine. The paths of the intake and exhaust air are folded by rubber foam covered walls and. this reduces the noise level of the machine. To further reduce the noise level, where the machine is a printer, a cover is hinged to the acoustical enclosure so as to normally cover the paper inlet. The cover is pivotable away from the paper inlet to facilitate paper loading.

Acoustical enclosure 10, Fig. 1, is illustrated as being attached to an impact printer 50. Mounting brackets 11, Fig. 2, are adapted to slip onto studs 56 projecting from rear wall 55 of printer 50. Fanfolded paper 51, Fig. 1, enters printer 50 at point 52 and emerges at point 53.

Printer 50 is cooled internally by air circulated by fans, not shown. The intake air enters enclosure 10 at intake chamber 12. Chamber 12 is located laterally of the paper path so as not to be covered by paper 51. Air entering chamber 12 is turned 90 degrees in a chamber behind angularly positioned plate 13. The intake air strikes rubber foam cushioned end wall 14 and is turned 180 degrees into a chamber formed by plate 13, rubber foam covered wall 15 and rear wall 55. The intake air then enters printer 50 thru ports 57 and 58.

The intake air...