Title: Acoustical enclosure

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.

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Inventors: Cunningham, Donald R. (Randolph, NJ, US)
Sulewsky, James E. (Mendham, NJ, US)

Application Number: 042238
Filing Date: 1979-05-24
Publication_date: 1980-08-05
Assignee:
Primary Class(es): 181/201 400/690.1, 400/690.4
Other Classes:
US Patent Ref:

197833	Dec, 1877	Deming.
1749177	Mar, 1930	Baxter et al.
1910981	May, 1933	Bescherer	181/201.
2701618	Feb, 1955	Montgomery	181/201.
3087578	Apr, 1963	Reed et al.	181/201.
3476210	Nov, 1969	Carlson	181/201.
3874023	Apr, 1975	Tschudy	181/207.
3930559	Jan, 1976	Frick	181/201.

Other Refs:
Primary Examiner: Gonzales, John
Assistant Examiner: Fuller, Benjamin R.
Attorney: Fleit & Jacobson