Patent US3803528A successfully refreshed from Google Patents.
US3803528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed electrical resistor component
Assignee: Dale Electronics Inc
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Filing: 1972-06-29
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Granted: 1974-04-09
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Expires: 1992-06-29
Abstract
Abstract The present hermetically sealed electrical resistor component is composed of a ceramic sleeve in which a standard resistor component is located and which is sealed on both ends by a double cap means whereby the standard resistor is isolated from the effects of ambient humidity and temperature. The double cap means enables the present package to be ruggedized, and enables it to expand and contract in response to temperature changes.
Inventors
- 👤 C Wellard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:39
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/14; H01C1/148; H01C1/02; H01C1/024
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
208 words
A hermetically sealed electrical resistor component package comprising in combination: an electrical resistor component means having first and second electrically conducting ends; first and second end cap means composed of electrically conducting material, each of said end cap means formed to provide an inner cap means and an outer cap means; said electrical resistor component means disposed to have a portion of its outer surface which lies close to its first end snugly fitting against the inner cap means of said first end cap means and further disposed to have a portion of its outer surface which lies close to its second end snugly fitting against the inner cap means of said sEcond end cap means; ceramic sleeve means having first and second ends formed to fit over said respective inner cap means and within said outer cap end means, said ceramic sleeve means disposed with its first end fitting into said outer cap means of said first end cap means and with its second end fitting into said outer cap means of said second end cap means; and sealing and securing means disposed to seal and secure said respective outer cap means of said first and second end cap means with and to said ceramic sleeve means.
Claim 2
Dependent Claim
208 words
A hermetically sealed electrical resistor component package comprising in combination: an electrical resistor component means having first and second electrically conducting ends; first and second end cap means composed of electrically conducting material, each of said end cap means formed to provide an inner cap means and an outer cap means; said electrical resistor component means disposed to have a portion of its outer surface which lies close to its first end snugly fitting against the inner cap means of said first end cap means and further disposed to have a portion of its outer surface which lies close to its second end snugly fitting against the inner cap means of said sEcond end cap means; ceramic sleeve means having first and second ends formed to fit over said respective inner cap means and within said outer cap end means, said ceramic sleeve means disposed with its first end fitting into said outer cap means of said first end cap means and with its second end fitting into said outer cap means of said second end cap means; and sealing and securing means disposed to seal and secure said respective outer cap means of said first and second end cap means with and to said ceramic sleeve means.
Claim 3
Dependent Claim
34 words
A hermetically sealed electric resistor component package according to claim 1 wherein said electrical resistor component means comprises a ceramic substrate with a metal thin film layer secured thereto and end caps secured thereon.
Claim 4
Dependent Claim
25 words
A hermetically sealed electrical resistor component package according to claim 1 wherein said electrical resistor component means is substantially encapsulated in an epoxy resin material.
Claim 5
Dependent Claim
74 words
A hermetically sealed electrical resistor component package according to claim 2 wherein said first end of said electrical resistor component means is disposed so that there is a space between it and the surface of said inner cap means lying opposite it and wherein said second end of said electrical resistor component means is disposed so that there is a space between it and the surface of said inner cap means lying opposite it.
Claim 6
Dependent Claim
44 words
A hermetically sealed electrical resistor component package according to claim 1 wherein said ceramic sleeve means is formed so that its inside diameter provides a space between the inner surface of said ceramic sleeve means and the outside diameter of said inner cap means.
Claim 7
Dependent Claim
71 words
A hermetically sealed electrical resistor component package according to claim 1 wherein said sealing and Securing means include first and second metal bands disposed around the outer surface of said ceramic sleeve means and further disposed so that a portion thereof fits under the respective outer cap means and extends beyond and further including silver solder means securing said respective outer cap means to said respective first and second band means.
Claim 8
Dependent Claim
45 words
A hermetically sealed electrical resistor component package according to claim 1 wherein there is further included epoxy resin means encapsulating said outer surface of said first and second end cap means, as well as said ceramic sleeve means lying between said securing and sealing means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |