Patent US4403329A successfully refreshed from Google Patents.
US4403329A
Expired / Lapsed
US
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Support system for electrical resistance element
Assignee: SPX Technologies Inc
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Filing: 1981-07-06
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Granted: 1983-09-06
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Expires: 2001-07-06
Abstract
Abstract Disclosed is a support system for an electrical resistance heating element, such element being adapted to be mounted on ceramic fiber insulation covering the inner surfaces of furnace shells or the like. The support comprises a pin for insertion into the ceramic fiber module; and a clip or retaining wire which is held within an opening in the pin and is adapted to surround the resistance element, thereby to retain it in position; means are provided for securely anchoring the pin within the module.
Inventors
- 👤 Ewald R. Werych
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:44
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/62; H05B3/66
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
111 words
A support device for an electrical resistance heating element having a reverse bend loop therein, said heating element being adapted to be mounted on a ceramic fiber insulation module covering the inner vertical walls of furnace shells, said support device comprising: a pin for insertion into said module downwardly at an acute angle from the horizontal; a retaining wire held within an opening in said pin, said retaining wire surrounding the legs defining the reverse bend loop in said resistance element so as to retain the element in position with respect to the module, the reverse bend loop extending over said pin; means for securely retaining said pin within said module.
Claim 2
Dependent Claim
111 words
A support device for an electrical resistance heating element having a reverse bend loop therein, said heating element being adapted to be mounted on a ceramic fiber insulation module covering the inner vertical walls of furnace shells, said support device comprising: a pin for insertion into said module downwardly at an acute angle from the horizontal; a retaining wire held within an opening in said pin, said retaining wire surrounding the legs defining the reverse bend loop in said resistance element so as to retain the element in position with respect to the module, the reverse bend loop extending over said pin; means for securely retaining said pin within said module.
Claim 3
Dependent Claim
16 words
A support device as defined in claim 1, in which said pin is a hollow tube.
Claim 4
Dependent Claim
35 words
A support device as defined in claim 1, in which said opening is located near the outer end of said pin such that the retaining wire is outside the module when the pin is installed.
Claim 5
Dependent Claim
33 words
A support device as defined in claim 1, in which said means for securely anchoring includes notches for receiving cement or the like, said notches being spaced along the length of said pin.
Claim 6
Dependent Claim
22 words
A support device as defined in claim 4, in which said notches are located within said module when said pin is installed.
Claim 7
Dependent Claim
33 words
A support device as defined in claim 5, in which a clip is provided for insertion within the inner end of said tube, said clip extending with reverse bend loops outside the tube.
Claim 8
Independent Claim
108 words
A system or apparatus for supporting an electrical resistance element adapted to be mounted on a ceramic fiber module, said apparatus comprising: an electrical resistance heating element; a ceramic fiber module; a pin for insertion into said module; a retaining wire held within an opening in said pin, said retaining wire being adapted to surround the resistance heating element so as to retain the element in position; means for securely anchoring said pin within said module, including notches spaced along the length of said pin; said ceramic fiber module having an opening sized to fit said pin, said pin being disposed therein; and cement inside said module opening.
Claim 9
Independent Claim
108 words
A system or apparatus for supporting an electrical resistance element adapted to be mounted on a ceramic fiber module, said apparatus comprising: an electrical resistance heating element; a ceramic fiber module; a pin for insertion into said module; a retaining wire held within an opening in said pin, said retaining wire being adapted to surround the resistance heating element so as to retain the element in position; means for securely anchoring said pin within said module, including notches spaced along the length of said pin; said ceramic fiber module having an opening sized to fit said pin, said pin being disposed therein; and cement inside said module opening.
Claim 10
Dependent Claim
21 words
A system as defined in claim 7, in which said module has a density of approximately thirteen pounds per cubic foot.
Claim 11
Dependent Claim
21 words
A system as defined in claim 7, in which said notches are located within said module when said pin is installed.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-05 | 1987-03-07 | 1987-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-05 | 1991-03-07 | 1991-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-05 | 1995-03-07 | 1995-09-06 | $7700.00 | Window Closed / Lapsed |