US3762656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shakeout and crushing apparatus
Assignee: Combustion Engineering Inc
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Filing: 1971-11-09
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Granted: 1973-10-02
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Expires: 1991-11-09
Abstract
Abstract A shakeout and crushing apparatus for reducing foundry sand to a condition for classification and reuse. The device comprises a shakeout chamber which is caused to orbitally vibrate. The chamber has an upper shakeout deck, a second disintegration deck supporting a plurality of metal balls, and a third wire screen deck. The sand is successively passed and progressively classified through the three decks. Material remaining on the wire screen deck is recycled to a disintegration chamber on the second deck which assures crushing of friable material and the removal of any tramp metal which may be present in the sand.
Inventors
- 👤 V Deve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:31
CPC Classifications
B; B22; B22C; B22C5/00; B22C5/04; B22C5/0404; B22D; B22D29/00; B22D29/02; Y; Y10; Y10S; Y10S241/00; Y10S241/10; Y10S241/30
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
163 words
A shakeout and crushing apparatus for reclamation of foundry sand comprising: a base, vibration isolative means mounted on said base for protecting said base from external vibrations, a shakeout chamber supported on said base by said vibration isolative means, said chamber having a porous upper deck, a porous second deck and a porous third deck of progressively more limited porosity, a plurality of hammer means carried by said second deck to accomplish crushing of the sand on said deck, means for removing material trapped on said second deck, a first conduit adjacent said third deck and communicating therewith to receive material trapped on said third deck, a second conduit adjacent the bottom of said shakeout chamber to receive sand passed thereto, a recycle and disintegration chamber adjacent to and communicating with said second deck, means for recycling said trapped material from said first conduit to said recycle and disintegration chamber, and a drive means for imparting an orbital vibration to said shakeout chamber.
Claim 2
Dependent Claim
163 words
A shakeout and crushing apparatus for reclamation of foundry sand comprising: a base, vibration isolative means mounted on said base for protecting said base from external vibrations, a shakeout chamber supported on said base by said vibration isolative means, said chamber having a porous upper deck, a porous second deck and a porous third deck of progressively more limited porosity, a plurality of hammer means carried by said second deck to accomplish crushing of the sand on said deck, means for removing material trapped on said second deck, a first conduit adjacent said third deck and communicating therewith to receive material trapped on said third deck, a second conduit adjacent the bottom of said shakeout chamber to receive sand passed thereto, a recycle and disintegration chamber adjacent to and communicating with said second deck, means for recycling said trapped material from said first conduit to said recycle and disintegration chamber, and a drive means for imparting an orbital vibration to said shakeout chamber.
Claim 3
Dependent Claim
18 words
The apparatus of claim 1 wherein said vibration isolative means are comprised of a series of coil springs.
Claim 4
Dependent Claim
31 words
The apparatus of claim 2 wherein said third deck is comprised of a wire screen oriented so as to be angled with respect to the horizontal axis of said shakeout chamber.
Claim 5
Dependent Claim
61 words
The apparatus of claim 3 wherein said porous upper deck is comprised of a flat plate having a plurality of large openings and a series of scalping bars extending upwardly from said plate, and wherein said second deck is comprised of a flat plate having a series of openings substantially smaller than the openings of said plate of said upper deck.
Claim 6
Dependent Claim
23 words
The apparatus of claim 4 wherein said hammer means comprises a plurality of metal balls substantially covering the area of said second deck.
Claim 7
Dependent Claim
105 words
The apparatus of claim 5 wherein said recycle and disintegration chamber includes a non-porous extension of said second deck flat plate forming a floor portion therefor, an upper wall overlying said floor portion and terminating at one end above said floor portion so as to form an opening therebetween, said opening between said upper wall and said floor portion being of a size less than said openings in said second deck, a plurality of rods positioned between said upper wall and said floor portion, and a return chute communicating with the interior of said recycle and disintegration chamber to permit passage of recycled material thereinto.
Claim 8
Dependent Claim
52 words
The apparatus of claim 6 wherein said drive means includes a platform fixed to said base, a drive motor adjustably positionable on said platform, an eccentric weight pulley rotatably mounted on said shakeout chamber, and a belt means connecting said motor to said eccentric weight pulley in order to impart rotation thereto.
Claim 9
Dependent Claim
30 words
The apparatus of claim 7 wherein said shakeout and crushing apparatus further includes an exhaust system communicating with the interior of said shakeout chamber so as to remove dust therefrom.
Claim 10
Independent Claim
164 words
An apparatus for crushing and classification of a friable material comprising: a chamber; means for imparting orbital vibration to said chamber; progressive classification means within said chamber for progressively classifying said friable material as it is passed through said chamber, said progressive classification means including a first porous deck having a series of holes therein and a plurality of scalping bars extending upwardly therefrom, a second porous deck having a series of holes therein of substantially smaller size than said holes of said first deck, and a third deck comprised of a wire screen angled with respect to the horizontal axis of said chamber; means for providing an auxiliary crushing action to said material at one level of classification; first removing means for removing and recycling within said progressive classification means crushed material trapped above the desired final level of classification; and second removing means for removing said friable material which has been processed to a desired level of classification for storage and reuse.
Claim 11
Independent Claim
164 words
An apparatus for crushing and classification of a friable material comprising: a chamber; means for imparting orbital vibration to said chamber; progressive classification means within said chamber for progressively classifying said friable material as it is passed through said chamber, said progressive classification means including a first porous deck having a series of holes therein and a plurality of scalping bars extending upwardly therefrom, a second porous deck having a series of holes therein of substantially smaller size than said holes of said first deck, and a third deck comprised of a wire screen angled with respect to the horizontal axis of said chamber; means for providing an auxiliary crushing action to said material at one level of classification; first removing means for removing and recycling within said progressive classification means crushed material trapped above the desired final level of classification; and second removing means for removing said friable material which has been processed to a desired level of classification for storage and reuse.
Claim 12
Dependent Claim
34 words
The apparatus of claim 9 wherein said means for providing auxiliary crushing action includes a hammer means located on said second deck and a recycle and disintegration chamber in juxtaposition with said second deck.
Claim 13
Dependent Claim
15 words
The apparatus of claim 10 wherein said hammer means includes a plurality of metal balls.
Claim 14
Dependent Claim
105 words
The apparatus of claim 11 wherein said recycle and disintegration chamber includes a non-porous extension of said second deck flat plate forming a floor portion therefor, an upper wall overlying said floor portion and terminating at one end above said floor portion so as to form an opening therebetween, said opening between said upper wall and said floor portion being of a size less than said openings in said second deck, a plurality of rods positioned between said upper wall and said floor portion, and a return chute communicating with the interior of said recycle and disintegration chamber to permit passage of recycled material thereinto.
Claim 15
Dependent Claim
27 words
The apparatus of claim 12 wherein there is further included an exhaust system communicating with the interior of said vibrating chamber so as to remove dust therefrom.
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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |