US3852570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible electrical resistance heating element
Assignee: Robertshaw Controls Co
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Filing: 1973-10-29
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Granted: 1974-12-03
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Expires: 1993-10-29
Abstract
Abstract An electricl resistance element having a conductor provided with a pair of lead attaching ends, each lead attaching end having a plurality of spaced and predetermined lead attaching parts therealong. A pair of leads are respectively electrically attached to one preselected lead attaching part of each end of the conductor so that the desired electrical resistance is provided through the conductor between the attached parts of the leads. An encasing structure completely covers the conductor and part of the leads whereby the remainder of the leads extend from the encasing structure, the encasing structure being provided by a pair of flexible tape-like strips superimposed on each other and securing part of the leads and the conductor therebetween.
Inventors
- 👤 H Tyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:34
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/40; H05B3/54; H05B3/56; H05B3/565; H02; H02K; H02K11/00; H02K11/20; H02K11/25; H05B3/20; H05B3/34; H05B3/36; H05B2203/00; H05B2203/002; H05B2203/003; H05B2203/017
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
106 words
An electrical element comprising a conductor having a pair of lead attaching ends, each lead attaching end having a plurality of spaced and predetermined lead attaching parts therealong, a pair of leads respectively electrically attached to one preselected lead attaching part of each end of said conductor so that a desired electrical resistence is provided through said conductor between said leads, and an electrically non-conductive and flexible encasing structure having opposed ends completely covering said conductor and having part of one of said opposed ends covering part of said leads whereby the remainder of said leads extend from said one opposed end of said encasing structure.
Claim 2
Dependent Claim
106 words
An electrical element comprising a conductor having a pair of lead attaching ends, each lead attaching end having a plurality of spaced and predetermined lead attaching parts therealong, a pair of leads respectively electrically attached to one preselected lead attaching part of each end of said conductor so that a desired electrical resistence is provided through said conductor between said leads, and an electrically non-conductive and flexible encasing structure having opposed ends completely covering said conductor and having part of one of said opposed ends covering part of said leads whereby the remainder of said leads extend from said one opposed end of said encasing structure.
Claim 3
Dependent Claim
23 words
An electrical element as set forth in claim 1 wherein said conductor is disposed initially generally in one plane in said encasing structure.
Claim 4
Dependent Claim
38 words
An electrical element as set forth in claim 2 wherein said conductor is disposed in a tortuous pattern between the lead attaching parts that provide the shortest electrical circuit through said conductor between said lead attaching ends thereof.
Claim 5
Dependent Claim
26 words
An electrical element as set forth in claim 3 wherein each lead attaching end is disposed in a tortuous pattern between adjacent lead attaching parts thereof.
Claim 6
Dependent Claim
26 words
An electrical element as set forth in claim 4 wherein the lead attaching parts of each lead end are disposed in aligned relation with each other.
Claim 7
Dependent Claim
31 words
An electrical element as set forth in claim 5 wherein the lead attaching parts of said lead ends are disposed in two rows disposed parallel and spaced from each other. disposed;
Claim 8
Dependent Claim
33 words
An electrical element as set forth in claim 6 wherein said leads are disposed between said rows and have ends outwardly turned to engage the desired lead attaching parts and be secured thereto.
Claim 9
Dependent Claim
35 words
An electrical element as set forth in claim 1 wherein said encasing structure comprises a pair of flexible tape-like strips superimposed on each other and securing said part of said leads and said conductor therebetween.
Claim 10
Dependent Claim
16 words
An electrical element as set forth in claim 1 wherein said element comprises a temperature sensor.
Claim 11
Dependent Claim
17 words
An electrical element as set forth in claim 1 wherein said element comprises an electrical heating element.
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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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |