Typewriting machines – Means auxiliary to typewriting function – Means for muffling typewriter noise
Patent
1986-11-05
1988-02-23
Burr, Edgar S.
Typewriting machines
Means auxiliary to typewriting function
Means for muffling typewriter noise
181201, 312208, B41J 2908
Patent
active
047266996
ABSTRACT:
Sound attenuation for a printer which includes impacting print elements and other movable noise producing parts being mounted to a frame and further including a biparted housing; the frame bottom having downwardly extending feet by means of which the printer rests on a support surface; the housing envelops the frame and is provided with openings through which the feet project without touching the print housing; the housing is floatingly suspended on said frame through a plurality of connections each of which includes pins integral with the frame and being circumscribed by an attenuating sleeve which is being connected to the frame by a locking cap seated on the respective pin for holding down the sleeve.
REFERENCES:
patent: 1876640 (1932-09-01), Dobson
patent: 2126326 (1938-08-01), Helmond
patent: 4215762 (1980-08-01), Cunningham
IBM Technical Disclosure Bulletin, vol. 26, No. 1, Jun. 1983.
Buschmann Ulrich
Gomoll Guenter
Hauslaib Wolfgang
Burr Edgar S.
Mannesmann AG
Pham Huong Q.
Siegemund Ralf H.
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