Patent US4537408A successfully refreshed from Google Patents.
US4537408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for applying surface pressure to advancing workpieces
Assignee: Theodor Hymmen KG
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Filing: 1984-04-11
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Granted: 1985-08-27
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Expires: 2004-04-11
Abstract
Abstract In a device for applying surface pressure to advancing workpieces like sheets of wood-based material and similar products with at least one revolving compression belt that a pressure plate acts on the inside of, several pressure chambers are distributed along the belt. Each chamber is constituted out of a holder that has a sealing strip. The holder and sealing strip are secured in such a way that they can be adjusted in a groove in the pressure plate by means of lateral guides constituted out of screws, adapters, or similar structures that are secured in such a way that they can be adjusted to the holder in the plane of the belt in such a way that deleterious horizontal displacement forces exerted by the belt on the sealing strip can be diverted into the pressure plate.
Inventors
- 👤 Werner Pankoke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:47
CPC Classifications
B; B30; B30B; B30B5/00; B30B5/04; B30B5/06; B30B5/062; Y; Y10; Y10S; Y10S277/00; Y10S277/906
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
125 words
In a device for applying surface pressure to workpieces advancing on at least one movable compression belt, means for forcing the workpiece against the belt including a pressure chamber adjacent to the belt and a hose therein receptive of a pressure medium and a continuous sealing strip between the pressure chamber and belt for sealing off the pressure chamber and means mounting the strip such that the belt slides therealong, including a pressure plate having a groove and a holder in the groove, the improvement wherein the means mounting the strip further comprises at least one lateral recess positioned in the holder transversely to its length and to the surface of the belt connected to the pressure plate and having means disposed in the recess.
Claim 2
Dependent Claim
125 words
In a device for applying surface pressure to workpieces advancing on at least one movable compression belt, means for forcing the workpiece against the belt including a pressure chamber adjacent to the belt and a hose therein receptive of a pressure medium and a continuous sealing strip between the pressure chamber and belt for sealing off the pressure chamber and means mounting the strip such that the belt slides therealong, including a pressure plate having a groove and a holder in the groove, the improvement wherein the means mounting the strip further comprises at least one lateral recess positioned in the holder transversely to its length and to the surface of the belt connected to the pressure plate and having means disposed in the recess.
Claim 3
Dependent Claim
17 words
The device as in claim 1, wherein the process is demarcated at its ends by a curve.
Claim 4
Dependent Claim
26 words
The device as in claim 1, wherein the longitudinally displaceable means has a lubricator bore that ends in front of the lateral surface of the holder.
Claim 5
Dependent Claim
13 words
The device as in claim 1, wherein the recess is a bore relief.
Claim 6
Dependent Claim
18 words
The device as in claim 1, the lateral surfaces of the holder and of the recess are processed.
Claim 7
Dependent Claim
17 words
The device as in claim 1, characterized in that the recess is open toward the compression belt.
Claim 8
Dependent Claim
44 words
The device as in claim 1, wherein the means connected to the pressure plate includes an adaptor slidably mounted in a strip of section fastened in the pressure plate, one lateral surface of the strip constituting part of the groove that accepts the holder.
Claim 9
Dependent Claim
37 words
The device as in claim 7, wherein the adaptor is secured by a screw inserted into the strip of section from the side the compression belt is located on and perpendicular to the plane of the belt.
Claim 10
Dependent Claim
32 words
The device as in claim 7, wherein the adaptor is secured by a screw inserted into the strip of section from the side and parallel to the plane of the compression belt.
Claim 11
Dependent Claim
27 words
The device as in claim 1, wherein the pressure-medium hose forces the holder against the compression belt and is mounted in the groove parallel to the holder.
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) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |