US3851685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous press
Assignee: Eduard Kuesters Maschinenfabrik GmbH and Co KG
•
Filing: 1972-11-21
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Granted: 1974-12-03
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Expires: 1992-11-21
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 through these traveling spans to work carried therebetween, and anti-friction means being interposed between the platens and the spans. Such a press is improved in that the anti-friction means is formed by a multiplicity of endless loops of rotatively unpowered roller chains forming a bed interposed between the platens and the belt spans, the roller chain spans extending longitudinally with respect to the belt spans and being transversely packed together, but each chain being individually free to travel independently with respect to the others and to the belt span.
Inventors
- 👤 K Quoos
- 👤 E Kusters
- 👤 K Ahrweiler
- 👤 V Appenzeller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:39
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/22; B27; B27M; B27M3/00; B27M3/04; B29C43/32; B29C43/44; B29C43/48; B30; B30B; B30B5/00; B30B5/04; B30B5/06; B30B5/065; B30B5/067; B29C2043/483; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0809; B29L; B29L2031/00; B29L2031/30; B29L2031/3005; B29L2031/3041
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
122 words
An improved continuous press including endless loops formed by longitudinally and transversely flexible conveyor belts which form opposed, substantially linear spans defining a pressing zone, means for rotatively driving at least one of said loops to drive said spans in the same direction, press platens applying pressure through said traveling spans to work carried therebetween, and anti-friction means interposed between said platens and said spans; wherein the improvement comprises said anti-friction means being formed by a multiplicity of endless loops of rotatively unpowered roller chains forming a bed interposed between said platens and said belt spans, said roller chain spans being transversely packed together but each chain being individually free to travel independently with respect to the others and said belt spans.
Claim 2
Dependent Claim
122 words
An improved continuous press including endless loops formed by longitudinally and transversely flexible conveyor belts which form opposed, substantially linear spans defining a pressing zone, means for rotatively driving at least one of said loops to drive said spans in the same direction, press platens applying pressure through said traveling spans to work carried therebetween, and anti-friction means interposed between said platens and said spans; wherein the improvement comprises said anti-friction means being formed by a multiplicity of endless loops of rotatively unpowered roller chains forming a bed interposed between said platens and said belt spans, said roller chain spans being transversely packed together but each chain being individually free to travel independently with respect to the others and said belt spans.
Claim 3
Dependent Claim
22 words
The press of claim 1 in which stationary metal strips are interposed between said roller chains to separate them from each other.
Claim 4
Dependent Claim
59 words
The press of claim 1 in which the rollers of said roller chains are in sets of two or more axially aligned rollers rotatively mounted on a common pin aNd linking plates located between the rollers of said sets interconnect the sets, the transverse width of the sets being less than can span localized deformations of said conveyor belts.
Claim 5
Dependent Claim
22 words
The press of claim 1 in which said platens have flat plane surfaces on which the rollers of said roller chains roll.
Claim 6
Dependent Claim
55 words
The press of claim 1 in which said roller chains when free from said pressing zone are looped at differing levels around one of the platens and a plate has passages at corresponding different levels through which the chains travel and which is positioned against said one of the platens to transmit pressing force therethrough.
Claim 7
Dependent Claim
21 words
The press of claim 1 in which said roller chains have transversely offset rollers of different lengths providing overlapping rolling paths.
Claim 8
Dependent Claim
20 words
The press of claim 3 in which the rollers of said sets are of differing lengths providing overlapping rolling paths.
Claim 9
Dependent Claim
22 words
The press of claim 3 in which stationary metal strips are interposed between said roller chains to separate them from each other.
Claim 10
Dependent Claim
42 words
The press of claim 5 in which said passages are transversely and vertically offset with plate material diagonally therebetween and said passageways are dimensioned vertically to provide clearance for the roller of said roller chains preventing them from receiving the pressing force.
Claim 11
Dependent Claim
31 words
The press of claim 9 in which said passages are channels, said plate being engaged on one side by the platen and pressing beams applying pressure on the plate''s other side.
References Cited (Backward Citations)
US2027657A
Cited
US2142932A
Cited
US2868356A
Cited
DE1004368B
Cited
US3120862A
Cited
US3045586A
Cited
US3068920A
Cited
US3111149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |