US4056347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isostatic compactor of pulverulent materials and the like
Assignee: Carbox AB
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Filing: 1976-12-27
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Granted: 1977-11-01
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Expires: 1996-12-27
Abstract
Abstract An apparatus for isostatic compression of pulverulent materials comprises a pressure vessel housing two liquids which by a flexible diaphragm are held out of mutual contact. One liquid flows through a pumping circuit and constitutes a primary pressurization agent the pressure of which is, via the diaphragm, transferred to the other liquid surrounding a basket enclosing a soft walled container for the material to be compacted. According to the invention the basket is deformable so that the diaphragm can be pressed against it without being damaged by reactional forces. The result of the deformation capability of the basket is a reduction of the overall size of the pressure vessel.
Inventors
- 👤 Sten Trolle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:49
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/001
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
159 words
Apparatus for isostatic compaction of a pulverulent material, comprising: a pressure vessel (1,2,3) containing first and second liquids (5,7) separated from each other; container means (9) housing the pulverulent material during the compaction thereof and being insertable in said pressure vessel; deformable supporting means (8) surrounding and supporting said container means (9) during its insertion into and removal out from said pressure vessel, said deformable supporting means (8) being in contact with said first liquid (5) surrounding said deformable supporting means (8) when it is in said pressure vessel; and flexible partition means (6) in said pressure vessel for separating said first and second liquids (5,7) from each other and providing pressure equalization between said liquids, said flexible partition (6) means contacting said deformable supporting means (8) upon pressurization of said liquids for compacting the pulverulent material in said container and deforming said supporting means (8) towards said container means (9) when contacted by said flexible partition means (6).
Claim 2
Dependent Claim
159 words
Apparatus for isostatic compaction of a pulverulent material, comprising: a pressure vessel (1,2,3) containing first and second liquids (5,7) separated from each other; container means (9) housing the pulverulent material during the compaction thereof and being insertable in said pressure vessel; deformable supporting means (8) surrounding and supporting said container means (9) during its insertion into and removal out from said pressure vessel, said deformable supporting means (8) being in contact with said first liquid (5) surrounding said deformable supporting means (8) when it is in said pressure vessel; and flexible partition means (6) in said pressure vessel for separating said first and second liquids (5,7) from each other and providing pressure equalization between said liquids, said flexible partition (6) means contacting said deformable supporting means (8) upon pressurization of said liquids for compacting the pulverulent material in said container and deforming said supporting means (8) towards said container means (9) when contacted by said flexible partition means (6).
Claim 3
Dependent Claim
14 words
Apparatus according to claim 5, wherein said supporting means (8) comprises a deformable material.
Claim 4
Dependent Claim
26 words
Apparatus according to claim 5, wherein said supporting means (8) comprises a plurality of rigid units interconnected so as to permit alteration of their relative positions.
Claim 5
Dependent Claim
14 words
Apparatus according to claim 5, wherein said supporting means comprises a deformable braided structure.
Claim 6
Dependent Claim
15 words
Apparatus according to claim 8, wherein said braided structure is made of braided flexible material.
Claim 7
Dependent Claim
17 words
Apparatus according to claim 5, wherein said first liquid is water and said second liquid is oil.
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) | 1980-10-31 | 1981-05-02 | 1981-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-31 | 1985-05-02 | 1985-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-31 | 1989-05-02 | 1989-11-01 | $7700.00 | Window Closed / Lapsed |