Patent US3926542A successfully refreshed from Google Patents.
US3926542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous press
Assignee: Individual
•
Filing: 1973-09-04
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Granted: 1975-12-16
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Expires: 1993-09-04
Abstract
Abstract A continuous press has two rotatively driven endless conveyor belts forming opposed, substantially linear spans defining a pressing zone, press platens applying pressure and temperature through these traveling spans to work carried therebetween, and anti-friction means such as a multiplicity of endless loops of rotatively unpowered roller chains interposed between the platens and the spans. Such a press is improved in that means are provided for regulating the temperature of the edge portions of the conveyor belts which extend beyond the bed of roller chains on each side of the press.
Inventors
- 👤 Karl-Heinz Ahrweiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:45
CPC Classifications
B; B30; B30B; B30B5/00; B30B5/04; B30B5/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
92 words
An improved continuous press including endless loops formed by conveyor belts which form opposed substantially linear spans defining a pressing zone, press platens applying pressure and heat through said travelling spans to work carried therebetween and anti-friction means interposed between said platens and said spans, said anti-friction means transmitting pressure and heat between said platens and said spans, the spans having edge portions extending laterally beyond the lateral edges of said platens and said anti-friction means; the improvement comprising means for independently regulating the temperature of said edge portions of said spans.
Claim 2
Dependent Claim
92 words
An improved continuous press including endless loops formed by conveyor belts which form opposed substantially linear spans defining a pressing zone, press platens applying pressure and heat through said travelling spans to work carried therebetween and anti-friction means interposed between said platens and said spans, said anti-friction means transmitting pressure and heat between said platens and said spans, the spans having edge portions extending laterally beyond the lateral edges of said platens and said anti-friction means; the improvement comprising means for independently regulating the temperature of said edge portions of said spans.
Claim 3
Dependent Claim
38 words
The apparatus of claim 1, in which the anti-friction means interposed between said platens and said spans comprise a multiplicity of endless loops of roller chains forming a bed of rollers interposed between said platens and said spans.
Claim 4
Dependent Claim
24 words
The apparatus of claim 2, in which said temperature regulating means comprise heating means associated with each of the edge portions of said spans.
Claim 5
Dependent Claim
42 words
The apparatus of claim 2, in which the temperature regulating means comprise a heating channel for receiving a fluid heat carrier medium associated with each of the edge portions of the spans, each such channel extending longitudinally adjacent said associated edge portion.
Claim 6
Dependent Claim
75 words
The apparatus of claim 4, in which each heating channel comprises an air duct adjacent to a lateral edge of said bed of rollers, said air duct having an opening extending longitudinally therein adjacent to said lateral edge of said bed of rollers, the outer wall of said air duct immediately adjacent said associated edge portion having longitudinal ridges extending therefrom toward said associated edge portion and forming a labyrinth seal with said edge portion.
Claim 7
Dependent Claim
28 words
The apparatus of claim 2, in which the temperature regulating means comprise rod-shaped infrared heat elements positioned longitudinally between each pair of opposite edge portions of said spans.
Claim 8
Dependent Claim
26 words
The apparatus of claim 2, in which the temperature regulating means comprise electrical heating apparatus operating directly upon each of said Edge portions of the spans.
Claim 9
Dependent Claim
16 words
The apparatus of claim 7, in which the electrical heating apparatus comprises an inductive heating arrangement.
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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |