US3562590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric igniter construction
Assignee: Robertshaw Controls Co
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Filing: 1969-03-17
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Granted: 1971-02-09
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Expires: 1989-03-17
Abstract
Abstract An electric igniter assembly including a hollow casing in which the major length of the igniter element is enclosed so that only a small portion is disposed in proximity to a gas burner; the electrical connectors for the igniter element and the electrodes that are attached to power leads are disposed remote from the flame issuing from the gas burner as well as being fixedly supported in the casing which includes shock absorbent material to reduce possibilities of breakage of the igniter element.
Inventors
- 👤 Richard K Mitts
- 👤 Wilbur F Jackson
- 👤 James R Willson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:39
CPC Classifications
F; F23; F23Q; F23Q7/00; F23Q7/22
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
155 words
An electric igniter assembly for a fuel burner comprising: a non combustible hollow casing; a continuous electrical igniter element having an igniting portion extending out of said hollow casing and adapted to be disposed within igniting proximity of the fuel burner, connectable portions disposed inside of said hollow casing, and supportable portions disposed inside of said hollow casing and extending between said connectable portions and the ends of said igniting portion; electrical conductor means fixedly connected tO the connectable portions of said igniter element; means secured within said hollow casing for fixedly supporting said electrical conductor means with said igniter element suspended therefrom partially within said hollow casing; and high temperature-resistant support means mounted in said hollow casing in spaced relation to the igniting portion of said igniter element for supporting the supportable portions of said igniter element adjacent the ends of the igniting portion of said igniter element to protect the same from breakage.
Claim 2
Dependent Claim
155 words
An electric igniter assembly for a fuel burner comprising: a non combustible hollow casing; a continuous electrical igniter element having an igniting portion extending out of said hollow casing and adapted to be disposed within igniting proximity of the fuel burner, connectable portions disposed inside of said hollow casing, and supportable portions disposed inside of said hollow casing and extending between said connectable portions and the ends of said igniting portion; electrical conductor means fixedly connected tO the connectable portions of said igniter element; means secured within said hollow casing for fixedly supporting said electrical conductor means with said igniter element suspended therefrom partially within said hollow casing; and high temperature-resistant support means mounted in said hollow casing in spaced relation to the igniting portion of said igniter element for supporting the supportable portions of said igniter element adjacent the ends of the igniting portion of said igniter element to protect the same from breakage.
Claim 3
Dependent Claim
34 words
The invention as recited in claim 1 wherein the supportable portions of said igniter element are greater in length inside of said hollow casing than the igniting portion is outside of said hollow casing.
Claim 4
Dependent Claim
26 words
The invention as recited in claim 1 wherein said support means includes a high temperature resistant potting compound surrounding the supportable portions of said igniter element.
Claim 5
Dependent Claim
23 words
The invention as recited in claim 1 wherein said support means includes glass wool material surrounding the supportable portions of said igniter element.
Claim 6
Dependent Claim
47 words
The invention as recited in claim 1 wherein said support means includes a plastic plate element secured to said hollow casing in spaced relation to said electrical conductor means and having a centrally aligned slot within which the supportable portions of said igniter element are freely disposed.
Claim 7
Dependent Claim
27 words
The invention as recited in claim 1 wherein shield means is exteriorly secured to said hollow casing to shield the same from flames of an igniter burner.
Claim 8
Dependent Claim
23 words
The invention as recited in claim 6 wherein said shield means includes reflector means disposed around the igniting portion of said igniter element.
Claim 9
Dependent Claim
43 words
The invention as recited in claim 6 wherein said shield means includes a housing surrounding said hollow casing, and wherein shock absorbing material is disposed between said housing and said hollow casing to absorb shock loads between said housing and said hollow casing.
Claim 10
Dependent Claim
36 words
The invention as recited in claim 6 wherein said shield means includes a housing attached to said hollow casing, and said housing is provided with reflector means disposed adjacent the igniting portion of said igniting element.
Claim 11
Dependent Claim
22 words
The invention as recited in claim 9 wherein said reflector means includes a plurality of arcuate surfaces oppositely disposed to each other.
Claim 12
Dependent Claim
30 words
The invention as recited in claim 10 wherein said housing comprises a hollow cylinder and said arcuate surfaces are extensions of said cylinder, and wherein an annulus joins said extensions.
Claim 13
Dependent Claim
29 words
The invention as recited in claim 11 wherein said reflector means further includes tab means bent inwardly from said annulus to overlie the igniting portion of said igniter element.
References Cited (Backward Citations)
US1887730A
Cited
US1898418A
Cited
US3125661A
Cited
US1393888A
Cited
US2850084A
Cited
US2761947A
Cited
US2966941A
Cited
US3017540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |