US3864546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for irradiating a discontinuously moving web
Assignee: Casso Solar Corp
•
Filing: 1973-04-16
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Granted: 1975-02-04
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Expires: 1993-04-16
Abstract
Abstract A plurality of elongated heater panels, preferably with fusedquartz radiating surfaces, are all arranged in a common plane facing downwardly onto a continuous web and are pivotal about respective axes extending transverse to the direction of displacement of the web. When the web stops, to prevent overheating the panels are pivoted up and directed away from the web, a shield on the back of each panel coming to rest on the lower edge of the radiating surface of the adjoining panel so as to prevent any radiation from falling on the web.
Inventors
- 👤 Hugo N Cahnman
- 👤 Frank Sterne
- 👤 Douglas M Canfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:26
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/0033; B; B29; B29B; B29B13/00; B29B13/02; B29B13/023; H05B3/20; H05B3/22; H05B3/28; H05B3/286
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
159 words
An apparatus for radiantly treating a discontinuously displaced web, said apparatus comprising: a plurality of panels each having a radiation-emitting surface normally directed at said web at a location and pivoted about a respective axis; means for detecting displacement of said web past said location; means connected between said detecting means and said panels for pivoting each of said panels about said axis and directing said surface away from said web upon detection of an interruption in displacement of said web, said pivoting means being operatively connected to all of said panels; and respective shields each displaceable into a position between a respective radiation-emitting surface and said web in the position of said panels wherein the surfaces are directed away from said web, at least one of said shields extending from the back of one of said panels generally perpendicularly thereto and being engageable with the panel immediately adjacent thereto when said panels are directed away from said web.
Claim 2
Independent Claim
159 words
An apparatus for radiantly treating a discontinuously displaced web, said apparatus comprising: a plurality of panels each having a radiation-emitting surface normally directed at said web at a location and pivoted about a respective axis; means for detecting displacement of said web past said location; means connected between said detecting means and said panels for pivoting each of said panels about said axis and directing said surface away from said web upon detection of an interruption in displacement of said web, said pivoting means being operatively connected to all of said panels; and respective shields each displaceable into a position between a respective radiation-emitting surface and said web in the position of said panels wherein the surfaces are directed away from said web, at least one of said shields extending from the back of one of said panels generally perpendicularly thereto and being engageable with the panel immediately adjacent thereto when said panels are directed away from said web.
Claim 3
Dependent Claim
16 words
The apparatus defined in claim 1 wherein said panel is a fused quartz radiant flat-surface heater.
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) | 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 |