US3672099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic rock thinsectioning machine
Assignee: University of California Berkeley
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Filing: 1970-09-03
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Granted: 1972-06-27
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Expires: 1990-09-03
Abstract
Abstract A machine for thinsectioning rock specimens includes a turntable intermittently rotatable on a frame to carry specimens in holders to a saw station at which a rotary saw on an arbor is motor driven and is mounted for adjustment of its rotational axis in various directions and then to a grinder station in which a motor driven grinder is likewise mounted for rotation about an axis movable into various different positions and to be approached more or less closely to the rock specimen on the turntable.
Inventors
- 👤 George R Parkhurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:46
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/02; B28D1/04; B28D1/046; B24; B24B; B24B27/00; B24B27/0023; B28D1/003; B28D7/00; B28D7/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
394 words
An automatic rock thinsectioning machine comprising a frame, a horizontal turntable, means for mounting said turntable on said frame for rotation about a first axis, means on and disposed above said turntable for holding a rock specimen to be thinsectioned, a grinder mounting secured to said frame alongside and extending above said turntable, a grinder slide, means for moving said grinder slide on said grinder mounting in a direction parallel to said first axis and toward and away from the top of said turntable, a grinder plate, means for mountinG said grinder plate on said grinder slide for rotation about a second axis located in a plane perpendicular to said first axis, a grinder quill plate, means for mounting said grinder quill plate on said grinder plate for rotation about a third axis perpendicular to said second axis and located in a plane perpendicular to said first axis, a grinder quill, means for mounting said grinder quill on said grinder quill plate, a grinder shaft, means for mounting said grinder shaft for rotation in said grinder quill above said turntable and about a fourth axis intersecting said turntable and approximately parallel to and movable with respect to said first axis, means for rotating said grinder shaft about said fourth axis, a grinder on said grinder shaft and overlying said turntable, a saw mounting secured to said frame alongside and extending above said turntable and adjacent to said grinder mounting, a saw slide, means for moving said saw slide on said saw mounting in a direction parallel to said first axis and toward and away from said top of said turntable, a saw plate, means for mounting said saw plate on said saw slide for rotation about a fifth axis parallel to said second axis, a saw quill plate, means for mounting said saw quill plate on said saw plate for rotation about a sixth axis parallel to said third axis, a saw quill, means for mounting said saw quill on said saw quill plate, a saw shaft, means for mounting said saw shaft for rotation in said saw quill above said turntable and about a seventh axis intersecting said table and approximately parallel to and movable with respect to said first axis, means for rotating said saw shaft about said seventh axis, and a saw fast on said saw shaft and overlying said turntable.
Claim 2
Dependent Claim
394 words
An automatic rock thinsectioning machine comprising a frame, a horizontal turntable, means for mounting said turntable on said frame for rotation about a first axis, means on and disposed above said turntable for holding a rock specimen to be thinsectioned, a grinder mounting secured to said frame alongside and extending above said turntable, a grinder slide, means for moving said grinder slide on said grinder mounting in a direction parallel to said first axis and toward and away from the top of said turntable, a grinder plate, means for mountinG said grinder plate on said grinder slide for rotation about a second axis located in a plane perpendicular to said first axis, a grinder quill plate, means for mounting said grinder quill plate on said grinder plate for rotation about a third axis perpendicular to said second axis and located in a plane perpendicular to said first axis, a grinder quill, means for mounting said grinder quill on said grinder quill plate, a grinder shaft, means for mounting said grinder shaft for rotation in said grinder quill above said turntable and about a fourth axis intersecting said turntable and approximately parallel to and movable with respect to said first axis, means for rotating said grinder shaft about said fourth axis, a grinder on said grinder shaft and overlying said turntable, a saw mounting secured to said frame alongside and extending above said turntable and adjacent to said grinder mounting, a saw slide, means for moving said saw slide on said saw mounting in a direction parallel to said first axis and toward and away from said top of said turntable, a saw plate, means for mounting said saw plate on said saw slide for rotation about a fifth axis parallel to said second axis, a saw quill plate, means for mounting said saw quill plate on said saw plate for rotation about a sixth axis parallel to said third axis, a saw quill, means for mounting said saw quill on said saw quill plate, a saw shaft, means for mounting said saw shaft for rotation in said saw quill above said turntable and about a seventh axis intersecting said table and approximately parallel to and movable with respect to said first axis, means for rotating said saw shaft about said seventh axis, and a saw fast on said saw shaft and overlying said turntable.
Claim 3
Dependent Claim
29 words
A device as in claim 1 including means for adjustably moving both said grinder shaft and said saw shaft into and out of parallel relationship with said first axis.
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |