US3909343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming a laminate in a heated-platen press
Assignee: G Siempelkamp GmbH and Co KG
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Filing: 1973-04-05
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Granted: 1975-09-30
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Expires: 1993-04-05
Abstract
Abstract A stack of thermally bondable sheets supported on a table adjacent a platen press is gripped along two opposite edges by a pair of jaws carried on a carriage which is displaced horizontally to position the stack between the heated platens of the press. The platens are closed to hot-press the stack and the jaws continue to hold the stack by its edges at least until the press is closed. After pressing, the stack, in the form of an integral stiff board, is again gripped by the edges which project beyond the press surface and is displaced from between the platens.
Inventors
- 👤 Manfred Posselt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:35
CPC Classifications
B; B32; B32B; B32B29/00; B32B29/002; B32B29/005; B27; B27N; B27N3/00; B27N3/08; B27N3/20; B27N3/22; B32B38/00; B32B38/0036; B32B38/004; D; D21; D21J; D21J1/00; D21J1/16; B32B2250/00; B32B2250/26; B32B2260/00; B32B2260/02; B32B2260/028; B32B2260/04; B32B2260/046; Y; Y10; Y10T; Y10T156/00; Y10T156/17
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
203 words
AN APPARATUS FOR MAKING A LAMINATE, COMPRISING A PRESS HAVING A PAIR OF RECTANGULAR PLATENS HAVING MUTUALLY CONFRONTING FACES, WITH A PAIR OF OPPOSITE SHORT SIDES AND A PAIR OF OPPOSITE LONG SIDES, MEANS FOR HEATING SAID PLATENS, A SUPPORT TABLE ADJACENT ONE OF THE SHORT SIDES OF SAID PRESS FOR A STACK OF SHEETS, A LINER GUIDE EXTENDING ALONG SAID SUPPORT TABLE AND SAID PRESS, A CARRIAGE DISPLACEABLLE ALONG SAID GUIDE PARALLEL TO SAID LONG SIDES OF PRESS. TWO SPACED-APART PAIRS OF FIRST JAWS ON SAID CARRIGE FOR GRIPPING SAID STACK ALONG TWO OPPOSITE EDGES, TWO SPACED APART PAIRS OF SECOND JAWS ON SAID CARRIGE REARWARDLY OF SAID FIRST JAWS FOR ENGAGEMENT WITH A STACK ON SAID SUPPORT TABLE WHILE SAID FIRST JAWS WENGAGE A STACK IN SAID PRESS, MEANS FOR DISPLACING SAID CARRIAGE ALONG SAID GUIDE IN A TRANSPORT DIRECTION FOR TRANSPORTING SAID STACK BY THEIR EDGES BETWEEN AND FROM SAID PLATENS, SAID JAWS OF EACH PAIRS BEIGN SPACED APART TRANSVERSE TO SAID DIRECTION BY A DISTANCE GREATER THAN THE WIDTH OF SAID FACES TRANVERSE TO SAID DIRECTION, AND MEANS FOR CLOSING SAID PLATENS ON A STACK BETWEEN THEM WHILE SAME IS HELD BY SAID FIRST JAWS FOR PRESSING SAID STACK
Claim 2
Independent Claim
203 words
AN APPARATUS FOR MAKING A LAMINATE, COMPRISING A PRESS HAVING A PAIR OF RECTANGULAR PLATENS HAVING MUTUALLY CONFRONTING FACES, WITH A PAIR OF OPPOSITE SHORT SIDES AND A PAIR OF OPPOSITE LONG SIDES, MEANS FOR HEATING SAID PLATENS, A SUPPORT TABLE ADJACENT ONE OF THE SHORT SIDES OF SAID PRESS FOR A STACK OF SHEETS, A LINER GUIDE EXTENDING ALONG SAID SUPPORT TABLE AND SAID PRESS, A CARRIAGE DISPLACEABLLE ALONG SAID GUIDE PARALLEL TO SAID LONG SIDES OF PRESS. TWO SPACED-APART PAIRS OF FIRST JAWS ON SAID CARRIGE FOR GRIPPING SAID STACK ALONG TWO OPPOSITE EDGES, TWO SPACED APART PAIRS OF SECOND JAWS ON SAID CARRIGE REARWARDLY OF SAID FIRST JAWS FOR ENGAGEMENT WITH A STACK ON SAID SUPPORT TABLE WHILE SAID FIRST JAWS WENGAGE A STACK IN SAID PRESS, MEANS FOR DISPLACING SAID CARRIAGE ALONG SAID GUIDE IN A TRANSPORT DIRECTION FOR TRANSPORTING SAID STACK BY THEIR EDGES BETWEEN AND FROM SAID PLATENS, SAID JAWS OF EACH PAIRS BEIGN SPACED APART TRANSVERSE TO SAID DIRECTION BY A DISTANCE GREATER THAN THE WIDTH OF SAID FACES TRANVERSE TO SAID DIRECTION, AND MEANS FOR CLOSING SAID PLATENS ON A STACK BETWEEN THEM WHILE SAME IS HELD BY SAID FIRST JAWS FOR PRESSING SAID STACK
Claim 3
Dependent Claim
35 words
The apparatus defined in claim 1 wherein each of said pairs of jaws comprises an upper jaw elongated in said direction and a lower jaw therebelow and parallel thereto and also elongated in said direction.
Claim 4
Dependent Claim
21 words
The apparatus defined in claim 2 wherein said lower jaw is displaceable and said upper jaw is fixed on said carriage.
Claim 5
Dependent Claim
25 words
The apparatus defined in claim 1 wherein said table has a width transverse to said direction smaller than the distance said jaws are spaced apart.
Claim 6
Dependent Claim
25 words
The apparatus defined in claim 1, further comprising control means operatively coupling said means for gripping the stack with said means for closing said platens.
Claim 7
Dependent Claim
18 words
The apparatus defined in claim 1 wherein said platens have recesses at their opposite edges receiving said jaws.
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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |