Patent US4608922A successfully refreshed from Google Patents.
US4608922A
Expired / Lapsed
US
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Frameless high pressure platen press
Assignee: Individual
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Filing: 1985-05-10
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Granted: 1986-09-02
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Expires: 2005-05-10
Abstract
Abstract A high pressure press is made without the need for a press frame by wrapping the press plates with a belt. A raising device is located between the plates and the belt, and closes the plates by transmission of force to the belt, which in turn acts upon the plates.
Inventors
- 👤 Andreas Pohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:35
CPC Classifications
B; B30; B30B; B30B1/00; B30B1/30; B42; B42C; B42C13/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
50 words
A high pressure press, comprising: first and second opposed plates; wrapping means surrounding said plates; raising means between at least one of said plates and said wrapping means located on the geometric centerline of the plate, for exerting force on said wrapping means and forcing said plates toward each other.
Claim 2
Dependent Claim
50 words
A high pressure press, comprising: first and second opposed plates; wrapping means surrounding said plates; raising means between at least one of said plates and said wrapping means located on the geometric centerline of the plate, for exerting force on said wrapping means and forcing said plates toward each other.
Claim 3
Dependent Claim
26 words
The press of claim 1, further comprising roller means at the edges of said plates and on said raising means, over which said wrapping means passes.
Claim 4
Dependent Claim
18 words
The press of claim 1, wherein each of said first and second plates is provided with raising means.
Claim 5
Dependent Claim
13 words
The press of claim 1, wherein said wrapping means is made of steel.
Claim 6
Dependent Claim
23 words
The press of claim 4, wherein said wrapping means is selected from the group consisting of a belt, a rope or a sheet.
Claim 7
Dependent Claim
23 words
The press of claim 1, wherein the raising means is selected from the group consisting of hydraulically, pneumatically, electrically and manually operable devices.
Claim 8
Dependent Claim
17 words
The press of claim 1, wherein the first and second plates are in the form of dies.
Claim 9
Dependent Claim
17 words
The press of claim 1, wherein the first and second plates are in the form of tools.
Claim 10
Dependent Claim
30 words
The press of claim 1, wherein the wrapping means has first and second ends and said raising means is a winch to which said first and second ends are attached.
Claim 11
Dependent Claim
62 words
A high pressure press, comprising: first and second opposed plates; wrapping means surrounding said plates; raising means between at least one of said plates and said wrapping means for exerting force on said wrapping means and forcing said plates toward each other; and roller means at the edges of said plates and on said raising means, over which said wrapping means passes.
Claim 12
Dependent Claim
62 words
A high pressure press, comprising: first and second opposed plates; wrapping means surrounding said plates; raising means between at least one of said plates and said wrapping means for exerting force on said wrapping means and forcing said plates toward each other; and roller means at the edges of said plates and on said raising means, over which said wrapping means passes.
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) | 1989-09-01 | 1990-03-03 | 1990-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-01 | 1994-03-03 | 1994-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-01 | 1998-03-03 | 1998-09-02 | $7700.00 | Window Closed / Lapsed |