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Cassette unit

阅读:790发布:2023-04-10

专利汇可以提供Cassette unit专利检索,专利查询,专利分析的服务。并且A cassette unit for ionographic reproduction of images. The cassette has a first flat electrically conductive plate adapted to have an insulative surface associated therewith, a second flat electrically conductive plate, and a photoemissive surface associated with the second plate, the plates being spaced apart and the surfaces being spaced apart with the surfaces facing each other. The cassette includes means for connecting an electrical potential across the plates whereby when electromagnetic radiation is directed through the plates a latent electrostatic image can be ionographically formed on the insulative surface. Means is provided for maintaining a gas confined in the space between the surfaces.,下面是Cassette unit专利的具体信息内容。

1. A cassette for ionographic reproduction of images comprising: a first plate including a first flat electrode carrying a thin sheet of dielectric material smoothly adhered thereto but conveniently peelable therefrom, one surface of said sheet being exposed and adapted to have formed thereon a latent electrostatic image; a second plate including a second flat electrode having a photoemissive surface, said plates being spaced apart with said surfaces opposing each other; an electricalLy nonconductive spacer disposed between the plates to extend around the periphery of the plates at the margins thereof thereby to define a uniform gaseous filled gap between said opposing surfaces; a connector having a first terminal in electrical contact with the first electrode and a second terminal in electrical contact with the second electrode and adapted to be quick-detachably connected to an electrical potential source; and quick-releasable means for maintaining said plates and spacer in an assembled relationship but which when released permits them freely and completely to separate, said quick-release means comprising a surrounding packaging envelope of a pliable synthetic resin film material which is conveniently severable.
2. A cassette as set forth in claim 1 wherein the packaging envelope comprises a gas-tight envelope of heat-shrinkable polymeric film material shrunk so as to firmly maintain the plates and spacer in their assembled relationship.
3. A cassette as set forth in claim 1 in which said connector includes means for admitting gas to the gap between said opposing surfaces and is adapted for quick interconnection with an external gas supply.
4. A cassette as set forth in claim 3 wherein said connector is disposed peripherally adjacent said plates and includes an inlet gas port and an outlet gas port each communicating with the gap between said opposing surfaces.
5. A cassette as set forth in claim 1 in which said connector has a first portion secured to one of said plates and a second portion removably secured to said first portion with an area of said envelope being clamped between said portions, said first portion being inside said envelope and said second portion being outside said envelope.
6. A cassette for ionographic reproduction of images comprising: a first plate including a first flat electrode which has secured to one face thereof a smooth flat continuous layer of a synthetic resin material having the property of maintaining a sheet of dielectric material smoothly facially adhered thereto but conveniently peelable therefrom, a sheet of dielectric material so removably adhered to the layer, one surface of said sheet being exposed and adapted to have formed thereon a latent electrostatic image; a second plate including a second flat electrode having a photoemissive surface, said plates being spaced apart with said surfaces opposing each other; an electrically nonconductive spacer disposed between the plates to extend around the periphery of the plates at the margins thereof thereby to define a uniform gaseous filled gap between said opposing surfaces; a connector having a first terminal in electrical contact with the first electrode and a second terminal in electrical contact with the second electrode and adapted to be quick-detachably connectecd to an electrical potential source; and quick-releasable means for maintaining said plates and spacer in an assembled relationship but which when released permits them freely and completely to separate said quick-release means comprising a surrounding packaging envelope of a pliable synthetic resin film material which is conveniently severable.
7. A cassette as set forth in claim 6 wherein said synthetic resin material layer is a compliant vinyl resin layer.
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