US3897910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shakeout and crushing apparatus
Assignee: Equipment Merchants International (EMI) Inc
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Filing: 1974-04-05
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Granted: 1975-08-05
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Expires: 1994-04-05
Abstract
Abstract A shakeout and crushing apparatus for reducing bonded sand molds to a condition for reuse in a molding process. The apparatus consists of an orbitally vibrated chamber having a first upper shakeout deck, a second intermediate disintegration deck including a plurality of crushing balls, and a third deck which consists of a screen. Material not passing through the screen passes through a secondary disintegration deck where any remaining friable material is crushed.
Inventors
- 👤 Vagn Deve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:34
CPC Classifications
B; B02; B02C; B02C23/00; B02C23/08; B02C23/10; B02C17/00; B02C17/14; B02C23/16; Y; Y10; Y10S; Y10S241/00; Y10S241/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
182 words
A shakeout and crushing apparatus for reclamation of friable material comprising a base, a housing mounted on said base, means for imparting orbital vibration to said housing, said housing containing a first upper porous deck, a second porous deck, and a third porous deck the openings in each deck being progressively smaller than the preceding one, the second deck being located beneath the first deck being located beneath the first deck, the third deck being located beneath the second deck, so that material passing through the openings in the first deck fall onto the second deck, and material passing through the second deck fall onto the third deck, a fourth deck positioned beneath and off to one side of the third deck in such a manner that material not passing through the third deck falls onto it, a plurality of crushing balls located above and supported by both the second and fourth decks to aid in the disintegration of the lumps of foundry sand, and discharge means for permitting removal of properly sized sand particles from both the third and fourth decks.
Claim 2
Dependent Claim
182 words
A shakeout and crushing apparatus for reclamation of friable material comprising a base, a housing mounted on said base, means for imparting orbital vibration to said housing, said housing containing a first upper porous deck, a second porous deck, and a third porous deck the openings in each deck being progressively smaller than the preceding one, the second deck being located beneath the first deck being located beneath the first deck, the third deck being located beneath the second deck, so that material passing through the openings in the first deck fall onto the second deck, and material passing through the second deck fall onto the third deck, a fourth deck positioned beneath and off to one side of the third deck in such a manner that material not passing through the third deck falls onto it, a plurality of crushing balls located above and supported by both the second and fourth decks to aid in the disintegration of the lumps of foundry sand, and discharge means for permitting removal of properly sized sand particles from both the third and fourth decks.
Claim 3
Dependent Claim
53 words
The apparatus set forth in claim 1, including opening means in the housing above the second deck through which pieces of tramp metal can be automatically thrown by the bouncing action caused by the orbital vibration of the housing, the opening means being small enough so that the crushing balls cannot escape therethrough.
Claim 4
Dependent Claim
44 words
The apparatus set forth in claim 2, including opening means in the housing above the fourth deck through which pieces of tramp metal can be automatically discharged from the housing, the opening means being small enough so that the crushing balls cannot escape therethrough.
Claim 5
Dependent Claim
26 words
The apparatus set forth in claim 3, wherein the crushing balls are made of metal with a coating of polyurethane thereon, to reduce the noise level.
Claim 6
Dependent Claim
65 words
The apparatus set forth in claim 4, wherein the second deck is made up of closely adjacent upper and lower porous plates, the openings in the plates being substantially aligned, and the size of the ultimate openings through the second deck can be varied by moving one of the plates horizontally with respect to the other, thereby partially misaligning the openings in the two plates.
Claim 7
Dependent Claim
173 words
A shakeout and crushing apparatus for reclamation of friable materials comprising a base, a housing mounted on said base, means for imparting orbital vibration to said housing, said housing containing a first upper porous deck, a second porous deck, and a third porous deck, the openings in each deck being progressively smaller than the preceding one, the second deck being located beneath the first deck, the third deck being located beneath the second deck, so that material passing through the openings in the first deck fall onto the second deck, and material passing through the second deck fall onto the third deck, a fourth deck positioned beneath and off to one side of the third deck in such a manner that material not passing through the third deck falls onto it, a plurality of crushing balls located above and supported by the fourth deck to aid in the disintegration of the lumps of foundry sand, and discharge means for permitting removal of properly sized sand particles from both the third and fourth decks.
Claim 8
Dependent Claim
173 words
A shakeout and crushing apparatus for reclamation of friable materials comprising a base, a housing mounted on said base, means for imparting orbital vibration to said housing, said housing containing a first upper porous deck, a second porous deck, and a third porous deck, the openings in each deck being progressively smaller than the preceding one, the second deck being located beneath the first deck, the third deck being located beneath the second deck, so that material passing through the openings in the first deck fall onto the second deck, and material passing through the second deck fall onto the third deck, a fourth deck positioned beneath and off to one side of the third deck in such a manner that material not passing through the third deck falls onto it, a plurality of crushing balls located above and supported by the fourth deck to aid in the disintegration of the lumps of foundry sand, and discharge means for permitting removal of properly sized sand particles from both the third and fourth decks.
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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |