US3343209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the manufacture of dense sintered articles
Assignee: Rio Tinto Switzerland AG
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Filing: 1966-02-15
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Granted: 1967-09-26
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Expires: 1986-02-15
Abstract
No abstract record available.
Inventors
- 👤 John G Solomir
- 👤 Akeret Rudolf
- 👤 Douady Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:22
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/32; C04B33/326; B; B22; B22F; B22F3/00; B22F3/003; B22F3/12; C22; C22C; C22C32/00; C22C32/001; C22C32/0015; C22C32/0036; Y; Y10; Y10S; Y10S425/00; Y10S425/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
APPARATUS FOR THE MANUFACTURE OF DENSE SINTERED COMPACTS FROM POWDERED MATERIAL, COMPRISING VACUUM PUMP MEANS, A GASTIGHT CHAMBER OPERATIVELY CONNECTED TO SAID VACUUM PUMP MEANS, A SINTERING CHAMBER WHICH FORMS A PART OF THE GASTIGHT CHAMBER AND COMPRISES A HEATING DEVICE AND A ROTATABLE, DRUM-SHAPED RECEIVING DEVICE COMPRISING COLD-COMPACT-RECEIVING MEANS IN THE FORM OF SPACED RECEIVING MEMBERS EXTENDING PARALLEL TO THE AXIS OF THE DRUM AND PROVIDING A CAGE EMBODYING A PLURALITY OF CIRCLES CONCENTRIC WITH ITS AXIS, AND IN WHICH SAID COLD COMPACTS ARE SIMULTANEOUSLY HEATED AND SINTERED IN A VACUUM, A PRESSING ROOM WHICH ALSO FORMS A PART OF SAID GASTIGHT CHAMBER AND CONTAINING AT LEAST THE TOOLING OF A COMPACTING PRESS, BY WHICH TOOLING SAID SINTERED COMPACTS ARE SUBSEQUENTLY HOT-UPSET ONE AFTER THE OTHER; SAID GASTIGHT CHAMBER BEING FURTHERMORE EQUIPPED WITH MEANS FOR MOVING SAID COMPACTS FROM SAID HEATED SINTERING PORTION OF SAID GASTIGHT CHAMBER TO THE CONTAINER OF SAID COMPACTING PRESS.
Claim 2
Dependent Claim
155 words
APPARATUS FOR THE MANUFACTURE OF DENSE SINTERED COMPACTS FROM POWDERED MATERIAL, COMPRISING VACUUM PUMP MEANS, A GASTIGHT CHAMBER OPERATIVELY CONNECTED TO SAID VACUUM PUMP MEANS, A SINTERING CHAMBER WHICH FORMS A PART OF THE GASTIGHT CHAMBER AND COMPRISES A HEATING DEVICE AND A ROTATABLE, DRUM-SHAPED RECEIVING DEVICE COMPRISING COLD-COMPACT-RECEIVING MEANS IN THE FORM OF SPACED RECEIVING MEMBERS EXTENDING PARALLEL TO THE AXIS OF THE DRUM AND PROVIDING A CAGE EMBODYING A PLURALITY OF CIRCLES CONCENTRIC WITH ITS AXIS, AND IN WHICH SAID COLD COMPACTS ARE SIMULTANEOUSLY HEATED AND SINTERED IN A VACUUM, A PRESSING ROOM WHICH ALSO FORMS A PART OF SAID GASTIGHT CHAMBER AND CONTAINING AT LEAST THE TOOLING OF A COMPACTING PRESS, BY WHICH TOOLING SAID SINTERED COMPACTS ARE SUBSEQUENTLY HOT-UPSET ONE AFTER THE OTHER; SAID GASTIGHT CHAMBER BEING FURTHERMORE EQUIPPED WITH MEANS FOR MOVING SAID COMPACTS FROM SAID HEATED SINTERING PORTION OF SAID GASTIGHT CHAMBER TO THE CONTAINER OF SAID COMPACTING PRESS.
References Cited (Backward Citations)
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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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |