US5042821A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal for optical scanner window
Assignee: PSC ACQUISITION Inc A CORP OF DELAWARE
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Filing: 1990-09-14
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Granted: 1991-08-27
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Expires: 2010-09-14
Abstract
Abstract A window seal for a bar code laser scanner comprising a silicone foam gasket to form a flexible, soft, durable, compressible and hydrophobic seal between the bar code laser scanner chassis window and the top window on a bar code laser scanner.
Inventors
- 👤 Craig H. Bontly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:02
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/10861; G06K7/10871; F; F16; F16J; F16J15/00; F16J15/02; F16J15/021; F16J15/022
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
137 words
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.
Claim 2
Dependent Claim
137 words
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.
Claim 3
Dependent Claim
139 words
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.
Claim 4
Dependent Claim
139 words
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.
Claim 5
Dependent Claim
18 words
An optical scanner according to claim 1 wherein said seal ring is permanently bonded to said window cartridge.
Claim 6
Dependent Claim
18 words
An optical scanner according to claim 2 wherein said seal ring is permanently bonded to said window cartridge.
Claim 7
Dependent Claim
14 words
An optical scanner according to claim 1 wherein said seal ring comprises silicone foam.
Claim 8
Dependent Claim
14 words
An optical scanner according to claim 2 wherein said seal ring comprises silicone foam.
Claim 9
Dependent Claim
74 words
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.
Claim 10
Dependent Claim
74 words
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.
Claim 11
Dependent Claim
15 words
A window cartridge assembly according to claim 7 wherein said hydrophobic foam is silicone foam.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-26 | 1995-02-25 | 1995-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-26 | 1999-02-25 | 1999-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-26 | 2003-02-25 | 2003-08-27 | $7700.00 | Window Closed / Lapsed |