Patent US3868970A successfully refreshed from Google Patents.
US3868970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multipositional selector valve
Assignee: Applied Automation Inc
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Filing: 1973-06-04
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Granted: 1975-03-04
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Expires: 1993-06-04
Abstract
Abstract A valve adapted with a flow distributor enabling selection of one of a plurality of flow paths therethrough. The valve is adapted with means for attaching a plurality of chromatographic columns thereto such that flow can be directed into any of the columns, individually.
Inventors
- 👤 Buell O Ayers
- 👤 Lewis B Roof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:57
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/072; F16K11/074; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86863
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
111 words
An apparatus comprising: a. an inlet; b. a movably-positionable distributor comprising a first circular grooved channel in a rotatable plate, said first circular grooved channel in direct contact with a channel from said inlet, said first circular grooved channel having a second channel extending therefrom whereby by rotation of said plate registry can be maintained with any one of a plurality of openings located at the same direction in the same direction away from this first circular grooved channel; c. a first plurality of openings, each of said openings connected to a conduit leading from said distributor; and d. a first plurality of conduits each connected to one of said openings.
Claim 2
Independent Claim
111 words
An apparatus comprising: a. an inlet; b. a movably-positionable distributor comprising a first circular grooved channel in a rotatable plate, said first circular grooved channel in direct contact with a channel from said inlet, said first circular grooved channel having a second channel extending therefrom whereby by rotation of said plate registry can be maintained with any one of a plurality of openings located at the same direction in the same direction away from this first circular grooved channel; c. a first plurality of openings, each of said openings connected to a conduit leading from said distributor; and d. a first plurality of conduits each connected to one of said openings.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1 in which said plurality of conduits are individually adapted for the insertion thereinto of a chromatographic column.
Claim 4
Dependent Claim
14 words
The apparatus of claim 1 in which said distributor is positionable by motor means.
Claim 5
Dependent Claim
15 words
The apparatus of claim 3 in which said motor means is controlled by selector switches.
Claim 6
Dependent Claim
17 words
The apparatus of claim 1 in which said apparatus comprises a mounting plate and a column plate.
Claim 7
Dependent Claim
26 words
The apparatus of claim 5 in which said inlet is positioned in said mounting plate and said first plurality of conduits open from said column plate.
Claim 8
Dependent Claim
25 words
The apparatus of claim 6 in which a second plurality of conduits provide open communication through said mounting plate and opens from said mounting plate.
Claim 9
Dependent Claim
103 words
The apparatus of claim 7 comprising: a. an outlet; b. said movably-positionable distributor comprising a second circular grooved channel in said rotatable plate, said second circular grooved channel in direct contact with a channel to an outlet, said second circular grooved channel having a second channel extending therefrom whereby by rotation of said plate registry can be maintained with any one of a second plurality of openings located at the same distance in the same direction away from the second circular grooved channel; and c. a second plurality of openings, each of said openings connected to one of said second plurality of conduitS.
Claim 10
Dependent Claim
31 words
The apparatus of claim 8 in which chromatographic columns are positionable between said plurality of conduits opening from said valve and said second plurality of conduits opening from said mounting plate.
Claim 11
Dependent Claim
14 words
The apparatus of claim 1 in which said apparatus is adapted with storage conduits.
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) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |