US3756762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for compacting carbon bodies
Assignee: Rio Tinto Switzerland AG
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Filing: 1970-02-02
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Granted: 1973-09-04
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Expires: 1990-02-02
Abstract
Abstract The present invention discloses a method and apparatus for compacting artificial carbon bodies for use as electrodes in aluminum electrolysis and for lining the cathode portions of an electric furnace and using them as anodes in such furnace, wherein the artificial carbon mass to be compacted is placed into a mold and becomes jarred from below by a freely movable bottom member and at the same time it is loaded from above through a freely movable cover member by a gradually increasing pressure which may be accompanied by additional jarring through the cover member and through the side walls of the mold.
Inventors
- 👤 G Maugweiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:29
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/02; B30B11/022
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
164 words
Apparatus for compacting a mass, especially artificial carbon mass for use as electrodes in aluminum electrolysis furnaces comprising in combination a mold shell movable in a vertical direction, a stationary bottom member arranged for free jarring movement within said shell and capable of supporting said mass, means for imparting a jarring movement to said bottom member, lifting means operable for moving said shell between a working position and a discharging position with respect to said bottom member, a movable support member arranged for movement in a horizontal direction above said shell between a first position opposite said shell and a second position away from said shell, pressure means disposed on said movable support member and expandable in a vertical direction towards the interior of said shell when moved into said first position, a cover member mounted on said pressure means and operable for substantially closing said mold shell at an end thereof opposite said bottom member and arranged for free movement within said shell.
Claim 2
Dependent Claim
164 words
Apparatus for compacting a mass, especially artificial carbon mass for use as electrodes in aluminum electrolysis furnaces comprising in combination a mold shell movable in a vertical direction, a stationary bottom member arranged for free jarring movement within said shell and capable of supporting said mass, means for imparting a jarring movement to said bottom member, lifting means operable for moving said shell between a working position and a discharging position with respect to said bottom member, a movable support member arranged for movement in a horizontal direction above said shell between a first position opposite said shell and a second position away from said shell, pressure means disposed on said movable support member and expandable in a vertical direction towards the interior of said shell when moved into said first position, a cover member mounted on said pressure means and operable for substantially closing said mold shell at an end thereof opposite said bottom member and arranged for free movement within said shell.
Claim 3
Dependent Claim
41 words
The apparatus as claimed in claim 1, further including fixed frame means constructed for surrounding said mold shell and said movable support member and for receiving the force reactions resulting from the operation of said jarring producing and pressure producing means.
Claim 4
Dependent Claim
20 words
The apparatus as claimed in claim 1, wherein oscillation jarring producing means are provided and coupled to said cover member.
Claim 5
Dependent Claim
35 words
The apparatus as claimed in claim 3, wherein means are provided between said pressure producing means and said cover member for damping the effect of said oscillation jarring producing means on said pressure producing means.
Claim 6
Dependent Claim
30 words
The apparatus as claimed in claim 1, said pressure producing means including means for lifting said cover member upward and away from said mass after completion of the compacting process.
Claim 7
Dependent Claim
31 words
The apparatus as claimed in claim 1, wherein said lifting means includes means for removing said shell means downwardly away from said mass and below the level of said bottom member.
Claim 8
Dependent Claim
45 words
The apparatus as claimed in claim 1, said movable support member including resilient means for mounting said pressure producing means, said resilient means being arranged to move said pressure producing means along an axis transverse to the direction of movement of said movable support member.
Claim 9
Dependent Claim
29 words
The apparatus as claimed in claim 2, said fixed frame means including a backing member for translating force reactions from said pressure producing means to said fixed frame means.
Claim 10
Dependent Claim
52 words
The apparatus as claimed in claim 1, wherein said movable support member includes a device for pushing said mass after completion of said compacting process and after displacing said mold shell, off from said bottom member, said movable support member also including charging means for charging said mass into said shell means.
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |