US3863907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant heating system
Assignee: M&T Manufacturing Co
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Filing: 1974-06-10
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Granted: 1975-02-04
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Expires: 1994-06-10
Abstract
Abstract A radiant heating system for maintaining the temperature of molten metals within a narrow preselected range. A radiant heater is affixed substantially centrally of a cover which is hingedly secured to a U-shaped trough so as to cover an open top end thereof. The cover is provided with heat reflecting means which extend longitudinally thereof on opposite sides of the radiant heater member. A handle cooperates with the hinge so that the cover may be moved into and out of close proximity with respect to the open end of the U-shaped trough member.
Inventors
- 👤 Sr Fred W Pierson
- 👤 Jr Fred W Pierson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:33
CPC Classifications
B; B22; B22D; B22D35/00; B22D35/06; C; C21; C21B; C21B7/00; C21B7/14
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
155 words
A cover construction for use in conveying molten non-ferrous metal in a substantially U-shaped trough member having upwardly extending front and rear side wall members and having an open top end, said cover construction comprising: a. means for supporting a radiant heater member substantially centrally of said cover member, b. heat reflecting means extending longitudinally of said cover construction, c. hinge means on said cover construction, d. handle means cooperating with said hinge means for movement of said cover construction into and out of close proximity with respect to the open end of said U-shaped trough member, e. and longitudinally extending skirt means which extend along opposite longitudinal sides of said U-shaped trough member, 1. said skirt means being spaced slightly outwardly from the uppermost ends to said front and side wall members to effect venting of gases from within said trough with said venting occurring substantially along the entire length of said trough member.
Claim 2
Dependent Claim
155 words
A cover construction for use in conveying molten non-ferrous metal in a substantially U-shaped trough member having upwardly extending front and rear side wall members and having an open top end, said cover construction comprising: a. means for supporting a radiant heater member substantially centrally of said cover member, b. heat reflecting means extending longitudinally of said cover construction, c. hinge means on said cover construction, d. handle means cooperating with said hinge means for movement of said cover construction into and out of close proximity with respect to the open end of said U-shaped trough member, e. and longitudinally extending skirt means which extend along opposite longitudinal sides of said U-shaped trough member, 1. said skirt means being spaced slightly outwardly from the uppermost ends to said front and side wall members to effect venting of gases from within said trough with said venting occurring substantially along the entire length of said trough member.
Claim 3
Dependent Claim
50 words
A cover construction as defined in claim 1 wherein said heat reflecting means extends along the front and rear sides of said radiant heater member and said radiant heater member is self venting by having its front and rear sides spaced inwardly from opposed sides of said heat reflecting means.
Claim 4
Dependent Claim
24 words
A cover construction as defined in claim 1 wherein said radiant heater member is a catalytic burner having a maximum temperature of about 1,800*F.
Claim 5
Dependent Claim
41 words
A cover construction as defined in claim 1 wherein said U-shaped trough member is composed of a plurality of sections positioned in end abutting relationship with each section being provided with its own cover member and its own radiant heater member.
References Cited (Backward Citations)
US3203689A
Cited
US3525506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |