Patent US4463615A successfully refreshed from Google Patents.
US4463615A
Expired / Lapsed
US
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Liquid transfer valve
Assignee: Beckman Coulter Inc
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Filing: 1981-07-06
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Granted: 1984-08-07
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Expires: 2001-07-06
Abstract
Abstract A liquid transfer valve including a movable valve portion. A second valve portion is movable with respect to a first valve portion to allow probes to extend therethrough to pick up a liquids. Upon probe retraction, the second valve portion is movable to a position which allows the liquids to be injected into the valve where they are diluted, mixed, and carried to a remote detector or delivery point.
Inventors
- 👤 Edmund E. Buzza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:05
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/10; G01N35/1095; G01N35/1097; G01N1/00; G01N1/28; G01N1/38; G01N35/1004
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
164 words
A liquid transfer valve for use with a plurality of probes, said probes being movable relative to said valve in a plane of travel toward and away from said valve, said valve comprising: a first valve portion including a plurality of access ports extending through said first valve portion approximately parallel to said plane of travel to allow probe movement therethrough, said first valve portion also including at least one conduit communicating with each said access port; and at least one movable valve portion mounted on said first valve portion for relative movement to a pickup position and a delivery position; said movable valve portion including a plurality of clearance holes extending through said movable valve portion approximately parallel to said plane of travel, each said clearance hole aligned with a corresponding access port in said pickup position to allow probe movement therethrough; and said movable valve portion further including at least one passageway communicating with each said access port in said delivery position.
Claim 2
Dependent Claim
164 words
A liquid transfer valve for use with a plurality of probes, said probes being movable relative to said valve in a plane of travel toward and away from said valve, said valve comprising: a first valve portion including a plurality of access ports extending through said first valve portion approximately parallel to said plane of travel to allow probe movement therethrough, said first valve portion also including at least one conduit communicating with each said access port; and at least one movable valve portion mounted on said first valve portion for relative movement to a pickup position and a delivery position; said movable valve portion including a plurality of clearance holes extending through said movable valve portion approximately parallel to said plane of travel, each said clearance hole aligned with a corresponding access port in said pickup position to allow probe movement therethrough; and said movable valve portion further including at least one passageway communicating with each said access port in said delivery position.
Claim 3
Dependent Claim
18 words
Apparatus according to claim 1 wherein said movable valve portion is rotatably mounted on said first valve portion.
Claim 4
Dependent Claim
26 words
Apparatus according to claim 1 wherein said movable valve portion is movably mounted on said first valve portion such that a liquid tight seal is effected.
Claim 5
Dependent Claim
15 words
Apparatus according to claim 1 wherein said conduit is connectible to a source of diluent.
Claim 6
Dependent Claim
20 words
Apparatus according to claim 1 further including a seal mounted within each said access port for contact with said probe.
Claim 7
Dependent Claim
19 words
Apparatus according to claim 1 wherein said movable valve portion is slidably mounted relative to said first valve portion.
Claim 8
Dependent Claim
166 words
A liquid transfer valve for use in conjunction with a plurality of probes, each said probe being movable with respect to said valve in a plane of travel toward and away from said valve, said valve comprising: a first valve portion including a plurality of access ports extending through said first valve portion approximately parallel to said plane of travel to allow probe movement therethrough, said first valve portion also including at least one conduit communicating with each said access port; and a second valve portion movably mounted adjacent said first valve portion for movement to a pickup position and a delivery position; said second valve portion including a plurality of clearance holes extending through said second valve portion approximately parallel to said plane of travel to allow probe movement therethrough, each said clearance hole alignable with a corresponding access port in said pickup position; and said second valve portion further including at least one passageway communicating with each said access port in said delivery position.
Claim 9
Dependent Claim
166 words
A liquid transfer valve for use in conjunction with a plurality of probes, each said probe being movable with respect to said valve in a plane of travel toward and away from said valve, said valve comprising: a first valve portion including a plurality of access ports extending through said first valve portion approximately parallel to said plane of travel to allow probe movement therethrough, said first valve portion also including at least one conduit communicating with each said access port; and a second valve portion movably mounted adjacent said first valve portion for movement to a pickup position and a delivery position; said second valve portion including a plurality of clearance holes extending through said second valve portion approximately parallel to said plane of travel to allow probe movement therethrough, each said clearance hole alignable with a corresponding access port in said pickup position; and said second valve portion further including at least one passageway communicating with each said access port in said delivery position.
Claim 10
Dependent Claim
23 words
Apparatus according to claim 7 wherein said first valve portion includes a seal mounted within said access port for contact with said probe.
Claim 11
Dependent Claim
18 words
Apparatus according to claim 7 wherein said second valve portion is rotatably mounted on said first valve portion.
Claim 12
Dependent Claim
19 words
Apparatus according to claim 7 wherein said second valve portion is slidably mounted relative to said first valve portion.
References Cited (Backward Citations)
US3266322A
Cited
US3552212A
Cited
US3747412A
Cited
US3858450A
Cited
US3754443A
Cited
US3911749A
Cited
US3991055A
Cited
US4068528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |