US3793780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory casting tumbling apparatus
Assignee: Individual
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Filing: 1972-04-21
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Granted: 1974-02-26
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Expires: 1992-04-21
Abstract
Abstract A vibratory casting tumbling apparatus of the type including a generally U-shaped hopper tipped on its side which may receive castings to be vibrated to shake loose sand particles therefrom. A first vibration imparting device is associated with the hopper so as to advance castings from along the tipped side thereof into the center of the hopper to be tumbled. A second vibratory device is associated with the hopper and is arranged with respect to the center of the gravity of the hopper and the location of the first vibratory device is such that, when energized, castings within the hopper will be advanced out of the tipped side for use in emptying the hopper upon completion of a tumbling operation.
Inventors
- 👤 A Musschoot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:13
CPC Classifications
B; B24; B24B; B24B31/00; B24B31/06; B24C; B24C3/00; B24C3/08; B24C3/088
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
190 words
A vibratory material treatment device comprising, a U-shaped hopper at least partially tipped to one side thereof and adapted to receive material to be treated along said side, a first pair of rotatably mounted eccentric weights located on one side of the center of gravity of the hopper, a first motor for rotating said weights for applying a first vibratory force to said hopper in a direction such that the material will advance from said one side toward the base of the hopper; a second pair of rotatably mounted eccentric weights located on the other side of the center of gravity of the hopper, a second motor for rotating said second pair of eccentric weights for applying a second vibratory force to said hopper in a direction such that the resultant force from said first and second forces will advance material from said base toward said side and out of said hopper; and means for energizing said first motor to advance the material from said one side toward the base of the hopper and means for energizing both motors simultaneously to move said material from the base toward said side.
Claim 2
Dependent Claim
190 words
A vibratory material treatment device comprising, a U-shaped hopper at least partially tipped to one side thereof and adapted to receive material to be treated along said side, a first pair of rotatably mounted eccentric weights located on one side of the center of gravity of the hopper, a first motor for rotating said weights for applying a first vibratory force to said hopper in a direction such that the material will advance from said one side toward the base of the hopper; a second pair of rotatably mounted eccentric weights located on the other side of the center of gravity of the hopper, a second motor for rotating said second pair of eccentric weights for applying a second vibratory force to said hopper in a direction such that the resultant force from said first and second forces will advance material from said base toward said side and out of said hopper; and means for energizing said first motor to advance the material from said one side toward the base of the hopper and means for energizing both motors simultaneously to move said material from the base toward said side.
Claim 3
Dependent Claim
276 words
A vibratory casting tumbling apparatus for dislodging adhered sand from newly formed castings and for sepaRating the dislodged sand from the castings, comprising, a generally U-shaped hopper, said hopper being at least partially tipped such that one side thereof is generally upright, the bottom thereof defines a dead end section for receiving and restraining castings introduced into said hopper and directed toward said one side, and the other side defines a casting introduction portion; a first pair of rotatably mounted eccentric weights located on one side of the center of gravity of the hopper, a first motor for rotating said weights for applying a first vibratory force to said hopper in a direction such that castings with adhered sand will be advanced into said dead end section to be tumbled to dislodge the sand therefrom and to break lumps of dislodged sand into discrete particles; means in said one side above said dead end section whereby dislodged sand in discrete particles may exit said hopper for subsequent reuse; a second pair of rotatably mounted eccentric weights located on the other side of the center of gravity of the hopper, a second motor for rotating said second pair of eccentric weights for applying a second vibratory force to said hopper in a direction such that the resultant force from said first and second forces will advance castings from said dead end section toward the casting introduction portion; and means for energizing said first motor to advance the castings with adhered sand into said dead end section and means for energizing both motors simultaneously to move said castings from the dead end section toward the casting introduction portion.
Claim 4
Dependent Claim
276 words
A vibratory casting tumbling apparatus for dislodging adhered sand from newly formed castings and for sepaRating the dislodged sand from the castings, comprising, a generally U-shaped hopper, said hopper being at least partially tipped such that one side thereof is generally upright, the bottom thereof defines a dead end section for receiving and restraining castings introduced into said hopper and directed toward said one side, and the other side defines a casting introduction portion; a first pair of rotatably mounted eccentric weights located on one side of the center of gravity of the hopper, a first motor for rotating said weights for applying a first vibratory force to said hopper in a direction such that castings with adhered sand will be advanced into said dead end section to be tumbled to dislodge the sand therefrom and to break lumps of dislodged sand into discrete particles; means in said one side above said dead end section whereby dislodged sand in discrete particles may exit said hopper for subsequent reuse; a second pair of rotatably mounted eccentric weights located on the other side of the center of gravity of the hopper, a second motor for rotating said second pair of eccentric weights for applying a second vibratory force to said hopper in a direction such that the resultant force from said first and second forces will advance castings from said dead end section toward the casting introduction portion; and means for energizing said first motor to advance the castings with adhered sand into said dead end section and means for energizing both motors simultaneously to move said castings from the dead end section toward the casting introduction portion.
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |