Casing structure for electrical and mechanical units

Details Casing structure for electrical and mechanical units Casing structure for electrical and mechanical units

1984-11-13

1986-07-15

Burr, Edgar S.

Typewriting machines

Means auxiliary to typewriting function

Frame, casing, or support for typewriter

4006901, 181201, 361383, B41J 2902

Patent

active

046003266

ABSTRACT:
A casing structure which includes a first casing unit having a first compartment and a second compartment, and a second casing unit having a third compartment. The second casing unit is pivotably connected to the first casing unit so as to open or close with respect thereto. The three compartments have respective inlets and outlets which are connected in series through connecting passages including these outlets and inlets to define an air flow passage. A heat source and sound source, i.e., an electrical and mechanical unit, is arranged in the intermediate second compartment and an air cooling fan is provided in the air flow passage in the vicinity of the heat unit.

REFERENCES:
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patent: 3308919 (1967-03-01), Cunningham
patent: 3407869 (1968-10-01), Staunton
patent: 3703997 (1972-11-01), Epina et al.
patent: 3962608 (1976-06-01), Forster
patent: 4044668 (1977-08-01), Barrus
patent: 4215762 (1980-08-01), Cunningham et al.
patent: 4252453 (1981-02-01), Estabrooks
patent: 4452475 (1984-06-01), Bloch et al.
patent: 4482064 (1984-11-01), Berke et al.
EPC Search Report, dated 8/25/80.
IBM Tech. Discl. Bull., vol. 25, No. 7B, Dec. 1982, "Push-Pull Cooling Sys. with Single Blower," pp. 3904-3905.
IBM Tech. Discl. Bull., vol. 25, No. 7B, Dec. 1982, "Induced Cooling in a Unit Cooling Scheme," pp. 3906-3908.
IBM Technical Disclosure Bulletin, "Ventilation System for Data Processing Systems", by Hammer et al., vol. 17, No. 9, 2-'75, pp. 2529-2530.

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