US4075596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed casing for a thermally actuable electrical switch
Assignee: Emerson Electric Co
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Filing: 1976-08-23
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Granted: 1978-02-21
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Expires: 1996-08-23
Abstract
Abstract A thermally actuatable electrical switch construction having a conductive open ended casing receiving an insulating sleeve in the open end thereof and a lead carrying insulating end plug disposed within the sleeve to close the open end of the casing. A sealing compound seals the casing to the sleeve external to the sleeve and the casing, the sealing compound also sealing the sleeve to the lead external to the sleeve and the lead.
Inventors
- 👤 Emil Robert Plasko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:03
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/74; H01H37/76; H01H37/764; H01H37/765
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
76 words
In a thermally actuatable electrical switch construction having a conductive open ended casing receiving an insulating sleeve in the open end thereof and a lead carrying insulating end plug disposed within said sleeve to close said open end, the improvement wherein said sleeve is disposed completely within said casing and inboard of the open end of said casing, and comprising a sealing means sealing said casing to said sleeve external to said sleeve and said casing.
Claim 2
Dependent Claim
76 words
In a thermally actuatable electrical switch construction having a conductive open ended casing receiving an insulating sleeve in the open end thereof and a lead carrying insulating end plug disposed within said sleeve to close said open end, the improvement wherein said sleeve is disposed completely within said casing and inboard of the open end of said casing, and comprising a sealing means sealing said casing to said sleeve external to said sleeve and said casing.
Claim 3
Dependent Claim
27 words
A switch construction as set forth in claim 1 and including a sealing means sealing said sleeve to said lead external to said sleeve and said lead.
Claim 4
Dependent Claim
32 words
A switch construction as set forth in claim 2 wherein said sealing means for said sleeve and casing and said sealing means for said sleeve and lead comprises the same sealing means.
Claim 5
Dependent Claim
52 words
A switch construction as set forth in claim 3 wherein said sealing means comprises a plastic-like material disposed on said construction from said open end of said casing to said lead to completely seal said open end of said casing from said casing to said lead that projects out of the same.
Claim 6
Dependent Claim
25 words
A switch construction as set forth in claim 5 wherein said sealing means also seals said end plug to said sleeve and to said lead.
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) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |