Claims
- 1. An optical scanner comprising:
- a top plate;
- a first window permanently bonded to the optical scanner through which scan lines may be transmitted, said first window having a first surface and a second surface;
- a window cartridge assembly inserted into said top plate and restrained in place by means of snap fasteners;
- said window cartridge assembly including:
- a window cartridge;
- a second window having a third surface and a fourth surface;
- a seal ring attached to and downwardly depending from said window cartridge and surrounding said third surface;
- said first window substantially parallel to said second window and spaced apart from said second window to form a substantially transparent gap between said first window and said second window and adjacent said second surface and said third surface;
- said seal ring substantially in contact with said second surface.
- 2. An optical scanner comprising:
- a top plate;
- a first window permanently bonded to the optical scanner through which scan lines may be transmitted, said first window having a first surface and a second surface;
- a window cartridge assembly inserted into said top plate and restrained in place by means of snap fasteners;
- said window cartridge;
- a second window having a third surface and a fourth surface;
- a seal ring attached to and downwardly depending from said window cartridge and surrounding said third surface;
- said first window substantially parallel to said second window and spaced apart from said second window to form a substantially transparent gap between said first window and said second window and adjacent said second surface and said third surface;
- said seal ring substantially in contact with a portion of the optical scanner surrounding said first window.
- 3. An optical scanner according to claim 1 wherein said seal ring is permanently bonded to said window cartridge.
- 4. An optical scanner according to claim 2 wherein said seal ring is permanently bonded to said window cartridge.
- 5. An optical scanner according to claim 1 wherein said seal ring comprises silicone foam.
- 6. An optical scanner according to claim 2 wherein said seal ring comprises silicone foam.
- 7. A window cartridge assembly comprising:
- a window cartridge;
- a window permanently bonded to said window cartridge with an adhesive, said window having a top surface and a bottom surface;
- a seal ring attached to and downwardly depending from said window cartridge adjacent to and surrounding said bottom surface;
- said seal ring comprising hydrophobic foam;
- the window cartridge assembly including snap fasteners for restraining said window cartridge within a top plate of an optical scanner.
- 8. A window cartridge assembly according to claim 7 wherein said hydrophobic foam is silicone foam.
Parent Case Info
This is a continuation of application Ser. No. 305,521 filed 2/2/89.
US Referenced Citations (9)
Continuations (1)
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Number |
Date |
Country |
Parent |
305521 |
Feb 1989 |
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