US5243161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disconnect switch with viewing window
Assignee: Schneider Electric USA Inc
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Filing: 1992-03-20
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Granted: 1993-09-07
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Expires: 2012-03-20
Abstract
Abstract An electrical disconnect switch having a viewing window for viewing the internal switching mechanism is disclosed. The viewing window utilizes gaskets, rivets, a substantially transparent viewing window plate, and a viewing window retainer to provide a dust-tight, water-tight and drip-tight viewing window.
Inventors
- 👤 Russell Cox
- 👤 Thomas F. Keene, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:18
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/16; H01H9/02; H01H9/04; H02; H02B; H02B1/00; H02B1/26; H02B1/30; H02B1/306; H01H2009/0292
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
96 words
An electrical disconnect switch for interrupting the flow of electrical current, said electrical disconnect switch comprising: an enclosure; a switching mechanism disposed within said enclosure; a cover attached to said enclosure having an opening therein; a viewing window plate disposed against said cover, wherein said viewing window plate covers the opening in said cover; a viewing window retainer positioned against said viewing window plate; and securing means for securing said viewing window retainer to said cover, said securing means comprising a plurality of pop rivets disposed in apertures within said cover and said viewing window retainer.
Claim 2
Dependent Claim
96 words
An electrical disconnect switch for interrupting the flow of electrical current, said electrical disconnect switch comprising: an enclosure; a switching mechanism disposed within said enclosure; a cover attached to said enclosure having an opening therein; a viewing window plate disposed against said cover, wherein said viewing window plate covers the opening in said cover; a viewing window retainer positioned against said viewing window plate; and securing means for securing said viewing window retainer to said cover, said securing means comprising a plurality of pop rivets disposed in apertures within said cover and said viewing window retainer.
Claim 3
Dependent Claim
16 words
An electrical disconnect switch according to claim 1, wherein said viewing window plate is substantially transparent.
Claim 4
Dependent Claim
16 words
An electrical disconnect switch according to claim 1, wherein said viewing window plate is substantially shatterproof.
Claim 5
Dependent Claim
17 words
An electrical disconnect switch according to claim 1, wherein said viewing window plate is substantially flame resistant.
Claim 6
Dependent Claim
22 words
An electrical disconnect switch according to claim 1, wherein said viewing window plate is secured in an escutcheon extending from said cover.
Claim 7
Dependent Claim
34 words
An electrical disconnect switch according to claim 1, further comprising a gasket disposed between said cover and said viewing window retainer, wherein said gasket prevents water and dust from entering said electrical disconnect switch.
Claim 8
Dependent Claim
49 words
An electrical disconnect switch according to claim 1, further comprising a pop rivet gasket disposed around each one of said plurality of pop rivets and disposed between said cover and said viewing window retainer, wherein said pop rivet gasket prevents water and dust from entering said electrical disconnect switch.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-09-06 | 1997-03-08 | 1997-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-06 | 2001-03-08 | 2001-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-06 | 2005-03-08 | 2005-09-07 | $7700.00 | Window Closed / Lapsed |