Patent US4043732A successfully refreshed from Google Patents.
US4043732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press for exerting flat pressure
Assignee: Individual
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Filing: 1975-12-22
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Granted: 1977-08-23
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Expires: 1995-12-22
Abstract
Abstract An improved continuous press of the type having two rotatively driven endless conveyor belts forming opposed, substantially linear spans defining a press zone with support structures applying pressure through the travelling belts to work carried therebetween, in which a plurality of sets of individual roller chains closely following each other in longitudinal direction are disposed between the support structures and the conveyor belts.
Inventors
- 👤 Karl-Heinz Ahrweiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:01
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/24; B30; B30B; B30B5/00; B30B5/04; B30B5/06; B30B5/065; B30B5/067
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
167 words
In continuous press which extends in the longitudinal direction including endless loops formed by longitudinally and transversely flexible conveyor belts which form opposed, substantially linear traveling spans moving in the longitudinal direction and defining a pressing zone, support structures applying pressure through said traveling spans to a strip of work carried therebetween and antifriction means in the form of multiplicity of endless loops of rotatively unpowered roller chains forming a bed of roller chain spans interposed between said support structures and said traveling spans, said roller chain spans extending in the longitudinal direction and being transversely packed together but each chain loop being individually free to travel independently with respect to the other loops of said multiplicity and said traveling spans, the improvement comprising said roller chains spans divided in the longitudinal direction of the press into a plurality of groups of closely following independent, endlessly circulating individual roller chain groups each having a plurality of transversely packed loops of roller chains individually free to travel independently.
Claim 2
Dependent Claim
167 words
In continuous press which extends in the longitudinal direction including endless loops formed by longitudinally and transversely flexible conveyor belts which form opposed, substantially linear traveling spans moving in the longitudinal direction and defining a pressing zone, support structures applying pressure through said traveling spans to a strip of work carried therebetween and antifriction means in the form of multiplicity of endless loops of rotatively unpowered roller chains forming a bed of roller chain spans interposed between said support structures and said traveling spans, said roller chain spans extending in the longitudinal direction and being transversely packed together but each chain loop being individually free to travel independently with respect to the other loops of said multiplicity and said traveling spans, the improvement comprising said roller chains spans divided in the longitudinal direction of the press into a plurality of groups of closely following independent, endlessly circulating individual roller chain groups each having a plurality of transversely packed loops of roller chains individually free to travel independently.
Claim 3
Dependent Claim
19 words
A press according to claim 1 and further including press platens disposed between said chains and said support structures.
Claim 4
Dependent Claim
17 words
A press according to claim 2 and further including means for heating disposed within said press platens.
Claim 5
Dependent Claim
87 words
A press according to claim 2 and further including return travel platens disposed between said press platens and said supporting structure, said return travel platens having a thickness more than double the roller diameter and having a plurality of grooves therein formed alternatively in the top and bottom of said plate said grooves having a depth corresponding to the roller diameter and a width corresponding to the roller width with the edges of adjacent grooves superimposed approximately on a longitudinal plane perpendicular to the strip of material.
Claim 6
Dependent Claim
59 words
A press according to claim 1 wherein said support structure comprises a plurality of cross beams extending across the strip of work following one another individually in the direction in which the strip of work is moved and wherein each of said groups of roller chains extends over a lengthwise section corresponding to an integral number of cross beams.
Claim 7
Dependent Claim
42 words
A press according to claim 5 in which in at least one place within the pressing zone all intervals transverse to the strip of work and between adjacent roller chains are situated at the same position when viewed in the lengthwise direction.
Claim 8
Dependent Claim
50 words
A press according to claim 6 wherein the spacing between sequential roller chain groups within the pressing zone are selected so that the conveyor belts, under the counter pressure of the work, are able to bulge out to the extent necessary to permit steam to escape laterally from the work.
Claim 9
Dependent Claim
50 words
A press according to claim 5 wherein the spacing between sequential roller chain groups within the pressing zone are selected so that the conveyor belts, under the counter pressure of the work, are able to bulge out to the extent necessary to permit steam to escape laterally from the work.
Claim 10
Dependent Claim
30 words
A press according to claim 1 wherein the roller chains in sequential groups of chains in the direction in which the work is moving are offset laterally from one another.
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) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |