Patent US4031852A successfully refreshed from Google Patents.
US4031852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microscope slide centrifuge
Assignee: Corning Glass Works
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Filing: 1976-01-02
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Granted: 1977-06-28
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Expires: 1996-01-02
Abstract
Abstract A microscope slide centrifuge for spinning a slide in preparation of blood films for microscopic examination is disclosed. The centrifuge includes a platen suitable for accepting a microscope slide for spinning the slide with a flat surface thereof perpendicular to the spin axis of the centrifuge. An enclosure closely surrounding the platen is disposed adjacent the flat surface of the microscope slide and parallel therewith. The enclosure is firmly attached to the centrifuge platen and is spinnable therewith.
Inventors
- 👤 Louis W. Clarke
- 👤 Burton H. Sage, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:33
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/2813; G01N2001/2846
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
143 words
An apparatus for preparing blood films on a microscope slide comprising a centrifuge including a platen having at least one surface suitable for accepting a microscope slide for spinning said microscope slide with a flat surface thereof perpendicular to the spin axis of the platen, an enclosure having a broad flat interior surface closely disposed adjacent said flat microscope slide surface and parallel therewith a distance of up to about 0.3 inches, said enclosure closely surrounding said platen and substantially totally enclosing said microscope slide and said one surface of said platen, means for firmly attaching said enclosure to said platen, and means for spinning said platen and said enclosure together as one whereby due to said close disposition of the enclosure with respect to the microscope slide and platen, air flow between the slide and platen combination and the enclosure is minimal.
Claim 2
Independent Claim
143 words
An apparatus for preparing blood films on a microscope slide comprising a centrifuge including a platen having at least one surface suitable for accepting a microscope slide for spinning said microscope slide with a flat surface thereof perpendicular to the spin axis of the platen, an enclosure having a broad flat interior surface closely disposed adjacent said flat microscope slide surface and parallel therewith a distance of up to about 0.3 inches, said enclosure closely surrounding said platen and substantially totally enclosing said microscope slide and said one surface of said platen, means for firmly attaching said enclosure to said platen, and means for spinning said platen and said enclosure together as one whereby due to said close disposition of the enclosure with respect to the microscope slide and platen, air flow between the slide and platen combination and the enclosure is minimal.
Claim 3
Dependent Claim
27 words
The apparatus of claim 1 wherein said means for firmly attaching said enclosure to said platen comprise spring clips formed at the peripheral edge of said enclosure.
Claim 4
Dependent Claim
22 words
The apparatus of claim 1 wherein said means for firmly attaching said enclosure to said platen comprise a hinge and a latch.
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) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |