US3959622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible electric heater element
Assignee: Individual
•
Filing: 1975-01-03
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Granted: 1976-05-25
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Expires: 1995-01-03
Abstract
Abstract A flexible electric heater element in the form of a band, comprising heating wires disposed in an electrically insulating base enveloped in a sealed sheathing, the current-carrying wires extending outside the sealed sheathing and disposed along at least one of the narrower sides of the heater element.
Inventors
- 👤 Alexei Alexeevich Bogdanov
- 👤 Zakhar Izrailevich Fonarev
- 👤 Viktor Petrovich Khorkov
- 👤 Adolf Moritsovich Alexandrov
- 👤 Ninel Rafailovna Iosilevich
- 👤 Vyacheslav Vladimirovich Shitov
- 👤 Yakov Shamilievich Darier
- 👤 Vsevolod Vladimirovich Peller
- 👤 Alexandr Sergeevich Kostygov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:29
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/40; H05B3/54; H05B3/56; H05B3/565; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49087
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
75 words
A flexible electric heater element in the form of a band, comprising: a plurality of heating wires; an electrically insulating base in which said heating wires are embedded; a sealed envelope enclosing said electrically insulating base, said envelope having opposite pairs of wide and narrow sides, at least one current-carrying wire extending outside said sealed envelope along a corresponding narrow side of said sealed envelope; and means securing said current-carrying wire to said sealed envelope.
Claim 2
Dependent Claim
75 words
A flexible electric heater element in the form of a band, comprising: a plurality of heating wires; an electrically insulating base in which said heating wires are embedded; a sealed envelope enclosing said electrically insulating base, said envelope having opposite pairs of wide and narrow sides, at least one current-carrying wire extending outside said sealed envelope along a corresponding narrow side of said sealed envelope; and means securing said current-carrying wire to said sealed envelope.
Claim 3
Dependent Claim
41 words
A heater element as claimed in claim 1 wherein said means securing said current-carrying wire to said sealed envelope comprises a jumper supporting said current-carrying wire and interlock means on said sealed envelope and said jumper extending along said narrow sides.
Claim 4
Dependent Claim
49 words
A heater element as claimed in claim 1 wherein said means securing said current-carrying wire to said sealed envelope comprises a lug extending along the narrow side of the envelope at which the current-carrying wire is disposed, said lug having a groove in which said current-carrying wire is received.
Claim 5
Dependent Claim
45 words
A heater element as claimed in claim 3, wherein said lug is shaped as a split cylinder and is made of a material having a residual plastic deformation, said cylinder having a horizontal axis of symmetry coinciding with the neutral axis of said heater element.
Claim 6
Dependent Claim
17 words
A heater element as claimed in claim 4 wherein said lug is integral with said sealed envelope.
Claim 7
Dependent Claim
28 words
A heater element as claimed in claim 1 wherein said heating wires are adjacent one another in a row extending parallel to the wide sides of the envelope.
Claim 8
Dependent Claim
20 words
A heater element as claimed in claim 6 wherein said current-carrying wire is aligned with said row of heating wires.
References Cited (Backward Citations)
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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) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |