Shutter assembly using a resilient material

Details Shutter assembly using a resilient material Shutter assembly using a resilient material

1994-07-26

1995-06-27

Royer, William J.

Photocopying

Contact printing

Light boxes

118652, 355260, G03G 2100

Patent

active

054284368

ABSTRACT:
There is disclosed a shutter assembly including: (a) a surface defining a surface opening; (b) a housing associated with the surface which defines a passageway in communication with the surface opening, wherein the housing surface defining the passageway includes a housing hole; and (c) a resilient material defining an end surface, which is disposed in the passageway and covers the housing hole, wherein the size of the end surface permits the application of an external force against the end surface to compress the resilient material to uncover the housing hole, and whereby the resilient material spontaneously expands to cover the housing hole when the external force ends.

REFERENCES:
patent: 4478512 (1984-10-01), Zoltner
patent: 4827307 (1989-05-01), Zoltner
patent: 5128724 (1992-07-01), Hayashi et al.
patent: 5235389 (1993-08-01), Kikuchi et al.
patent: 5381217 (1995-01-01), Ishida
patent: 5383578 (1995-01-01), Nishimura
Roberts, C. Thorpe, "Toner Cartridge," Xerox Disclosure Journal, vol. 5, No. 2, Mar./Apr. 1980, p. 171.

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