US3793604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High strength electrical lead for disk type thermistors
Assignee: GTE Sylvania Inc
•
Filing: 1973-04-09
•
Granted: 1974-02-19
•
Expires: 1993-04-09
Abstract
Abstract A disk type thermistor has a conductive metallic coating bonded to each face thereof. A lead-in wire is soldered to each metallic coating, each lead-in wire extending beyond the edge of the thermistor in a plane generally parallel to the face thereof. Each lead-in wire is shaped so that the solder bond between the lead-in wire and the metallic coating does not extend to the periphery of the thermistor.
Inventors
- 👤 G Duggan
- 👤 J Dow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:11
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/14; H01C1/144
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A barium titanate disk type thermistor having a solderable coating securely bonded to each face thereof and a separate bent lead-in wire fastened with solder to each of said coatings, the solder bond between said coating and said lead-in wire extending across the face of the thermistor but not as far as the periphery thereof, each of said lead-in wires having a bend so as to be elevated above the face of the thermistor at the periphery thereof by a distance at least about double the thickness of the lead-in wire, a peel-strength-improving solder fillet between said thermistor face and said lead-in wire at said bend of the lead-in wire and each of said lead-in wires having additional bends so that their outer ends are substantially parallel and spaced apart about the thickness of the thermistor.
Claim 2
Dependent Claim
136 words
A barium titanate disk type thermistor having a solderable coating securely bonded to each face thereof and a separate bent lead-in wire fastened with solder to each of said coatings, the solder bond between said coating and said lead-in wire extending across the face of the thermistor but not as far as the periphery thereof, each of said lead-in wires having a bend so as to be elevated above the face of the thermistor at the periphery thereof by a distance at least about double the thickness of the lead-in wire, a peel-strength-improving solder fillet between said thermistor face and said lead-in wire at said bend of the lead-in wire and each of said lead-in wires having additional bends so that their outer ends are substantially parallel and spaced apart about the thickness of the thermistor.
References Cited (Backward Citations)
US2418460A
Cited
US2720573A
Cited
US3182118A
Cited
US3381081A
Cited
US3452314A
Cited
US3547835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |