Acoustical enclosure

Details Acoustical enclosure Acoustical enclosure

1979-05-24

1980-08-05

Gonzales, John

Acoustics

Sound-modifying means

Housing or enclosure

B41J 2908

Patent

active

042157625

ABSTRACT:
An acoustical enclosure for isolating high-frequency noise produced by automatic business machines, such as typewriters and teletypes. A top paper-feed housing is removable and a midsection is hinged to permit access to the enclosed machine. An exhaust fan removes heated air from the enclosure and an air-intake lip at the front of the enclosure permits ambient-temperature air to be taken into the enclosure.

REFERENCES:
patent: 197833 (1877-12-01), Deming
patent: 1749177 (1930-03-01), Baxter et al.
patent: 1910981 (1933-05-01), Bescherer
patent: 2701618 (1955-02-01), Montgomery
patent: 3087578 (1963-04-01), Reed et al.
patent: 3476210 (1969-11-01), Carlson
patent: 3874023 (1975-04-01), Tschudy
patent: 3930559 (1976-01-01), Frick

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