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Title: Printing area cover plate for typewriters or like machines

Abstract: Disclosed is a preferably transparent removably mounted cover plate for covering the top opening or printing point area in a printer, e.g. a needle printer, which serves to reduce noise and to prevent the introduction of foreign substances and dust. Of particular advantage is the inclusion on the cover plate of paper guide elements, a switch actuating cam which acts on a switch to shut off the machine when the cover plate is removed or swung out, and a paper tear-off edge.


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Inventors: Teichmann, Friedrich (Feucht, DE)
Wenderoth, Karl (Bad Vilbel, DE)

Application Number: 06/195398
Filing Date: 1980-10-09
Publication_date: 1982-07-20
Assignee: ADLERWERKE KLEYER AG H

Primary Class(es): 400/690.400 400/645, 400/694, 400/668
Other Classes: B41J11/70; B41J29/12; B41J29/387; B41J29/08; B41J29/38
US Patent Ref:
2164227June, 1939Britten, Jr.400/690Listing machine
2807348September, 1957Chall et al.400/644Platen guard for listing adding machine
2950802August, 1960Yerks400/642Paper guide shield for business machines
3112228February, 1964Dollenmayer et al.400/690.4Electric fuel cells
3333671August, 1967Rohde400/646Paper draw-off guide
3887057June, 1975Stahl et al.400/690Housing for electrically operated typewriters and similar machines
3901372August, 1975Denley400/690.4Protective cover with viewing window for printers
3912069October, 1975Faulhaber400/690.4Sound confining typewriter cover
4175878November, 1979Wing400/693Printer cover assembly

Other Refs: DE2335582DE2731182DE2748869GB1169616
November, 1974400/54
January, 1979400/642
May, 1979400/54
November, 1969400/693.1
Other References: Cassell et al., "Cut Forms Feed Gate", IBM Technical Disclosure Bulletin, vol. 23, No. 3, pp. 903-904, 8/80.
Freeman, "Power . . . Hood", IBM Tech. Discl. Bulletin, vol. 20, No. 12, pp. 5229-5230, 5/78.

Primary Examiner: Pieprz, William
Assistant Examiner:
Attorney: