US3682397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for crushing and separating ore material
Assignee: Individual
•
Filing: 1969-02-27
•
Granted: 1972-08-08
•
Expires: 1989-02-27
Abstract
Abstract Earth is crushed and ore can be separated therefrom by passing the earthen material over a sonically activated surface. The earth is kept acoustically coupled to the surface through the use of a low impedance medium which can be rubber, liquid mercury, and the like.
Inventors
- 👤 Albert G Bodine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:47
CPC Classifications
B; B02; B02C; B02C19/00; B02C19/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
52 words
A device for crushing earth particles comprising: a flat plate, means connected to said plate for acoustically vibrating said plate, means for directing said earth particles to said plate, and low acoustic impedance means comprising a liquid mercury bath disposed adjacent said plate for maintaining said earth in contact with said plate.
Claim 2
Independent Claim
52 words
A device for crushing earth particles comprising: a flat plate, means connected to said plate for acoustically vibrating said plate, means for directing said earth particles to said plate, and low acoustic impedance means comprising a liquid mercury bath disposed adjacent said plate for maintaining said earth in contact with said plate.
Claim 3
Dependent Claim
18 words
The device of claim 1 wherein said vibrating plate is disposed below the surface of said mercury bath.
Claim 4
Dependent Claim
50 words
The device of claim 1 and further including a housing wherein said mercury is disposed, said plate being adjustably disposed in spaced relationship to the bottom of the housing, said means for directing the earth to said device serving to direct the earth between said housing bottom and said plate.
References Cited (Backward Citations)
US258552A
Cited
US1219408A
Cited
US2959830A
Cited
US3100088A
Cited
US3348781A
Cited
US3414203A
Cited
US3465976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |