Patent US3901642A successfully refreshed from Google Patents.
US3901642A
Expired / Lapsed
US
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Apparatus for the production of pressure-shaped parts from oriented wood particles
Assignee: DSO MEBEL
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Filing: 1973-12-10
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Granted: 1975-08-26
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Expires: 1993-12-10
Abstract
Abstract An apparatus for the production of shaped parts from wood particles comprises a base plate carrying a plurality of fluidoperated cylinders which act upon a mold-cavity support open upwardly along a horizontal face. A ram mounted on the base plate is received in the cavity and an orienting device is detachably mounted upon the face plate so that its chamber is aligned with the mold-cavity. The orienting device is provided with a downwardly convergent compartment above a parallel-wall chamber communicating with the mold-cavity and provided with vertical partitions which serve to orient the particles when the device is vibrated by appropriate means. A press platen can be applied to the face to drive the latter toward the base plate, upon removal of the device, to compact the particles in the mold-cavity.
Inventors
- 👤 Urman Alexandrov Urmanov
- 👤 Veselin Georgiev Ivanov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:24
CPC Classifications
B; B27; B27N; B27N5/00; B27N5/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
199 words
An apparatus for producing shaped bodies from oriented wood particles, comprising: a base; a plurality of fluid operated cylinders connected to said base; means movable relative to said base and connected to said cylinders for displacement thereby and defining a vertically extending mold cavity opening upwardly along a horizontal face; a ram conforming to the configuration of said cavity and mounted on said base for compacting a mass of particles within said cavity between said face and said ram upon displacement of said face toward said base; an orienting device removably mounted on said face and including: a parallel-wall chamber registering with said mold cavity, a downwardly converging chamber communicating with said parallel-wall chamber and disposed thereabove, means for vibrating said chambers, a plurality of vertically extending parallel plates spaced apart in said chambers for orienting wood particles descending therein upon vibration of said chambers; and a grid disposed between said chambers, said particles passing through said grid upon vibration; and press platen adapted to bear against said face upon removal of said device to compact oriented wood particles in said cavity between said ram and said platen upon displacement of said face toward said base by said platen.
Claim 2
Independent Claim
199 words
An apparatus for producing shaped bodies from oriented wood particles, comprising: a base; a plurality of fluid operated cylinders connected to said base; means movable relative to said base and connected to said cylinders for displacement thereby and defining a vertically extending mold cavity opening upwardly along a horizontal face; a ram conforming to the configuration of said cavity and mounted on said base for compacting a mass of particles within said cavity between said face and said ram upon displacement of said face toward said base; an orienting device removably mounted on said face and including: a parallel-wall chamber registering with said mold cavity, a downwardly converging chamber communicating with said parallel-wall chamber and disposed thereabove, means for vibrating said chambers, a plurality of vertically extending parallel plates spaced apart in said chambers for orienting wood particles descending therein upon vibration of said chambers; and a grid disposed between said chambers, said particles passing through said grid upon vibration; and press platen adapted to bear against said face upon removal of said device to compact oriented wood particles in said cavity between said ram and said platen upon displacement of said face toward said base by said platen.
Claim 3
Dependent Claim
20 words
The apparatus defined in claim 1 wherein said plates extend through both said chambers and have downwardly convergent upper portions.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |