Patent US3744319A successfully refreshed from Google Patents.
US3744319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-sampling structure
Assignee: New Brunswick Scientific Co Inc
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Filing: 1971-06-08
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Granted: 1973-07-10
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Expires: 1991-06-08
Abstract
Abstract A liquid-sampling structure located at the bottom of a vessel which contains the liquid from which samples are to be taken. A valve is located at the bottom end of the vessel and has a closed position closing the vessel and an open position providing a passage through which a sample of the liquid in the vessel can flow, a suitable supporting structure being located beneath the valve for supporting a test tube which receives the sample. A valve actuator is operatively connected with the valve to displace between its closed and open positions. A structure is operatively connected with the valve to form a fluid passage through which a cleaning fluid can be directed through the valve when it is in its closed position so as to clean the valve with a cleaning fluid while the valve is in its closed position. An additional fluid passage is provided for providing a path for a cleaning fluid in order to clean the interior of the structure which supports a test tube beneath the valve.
Inventors
- 👤 C Harmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:48
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/20; G01N1/2035; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4259
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
202 words
In a liquid-sampling structure, a vessel for containing the liquid, said vessel having a bottom end through which liquid is adapted to be discharged from the vessel, valve means having a sample receiving bore therethrough and located at the bottom end of said vessel and sealed by seal means, said valve means having a closed position for closing the bottom end of said vessel and an open position for discharging liquid out through the bottom end of said vessel, valve-actuating means operatively connected with said valve means for displacing the latter between said open and closed positions thereof, support means situated beneath said valve means for supporting a test tube beneath said valve means to receive the sample of the liquid discharging through said valve means when the latter is in its open position, first fluidpassage means operatively connected to said valve means for directing a cleaning fluid therethrough when said valve means is in its closed position, and second fluid-passage means selectively connected to said support means when the valve means is in its closed position for directing a cleaning fluid through the interior thereof for cleaning the surfaces contacted by the liquid sample as it flows into a test tube.
Claim 2
Dependent Claim
202 words
In a liquid-sampling structure, a vessel for containing the liquid, said vessel having a bottom end through which liquid is adapted to be discharged from the vessel, valve means having a sample receiving bore therethrough and located at the bottom end of said vessel and sealed by seal means, said valve means having a closed position for closing the bottom end of said vessel and an open position for discharging liquid out through the bottom end of said vessel, valve-actuating means operatively connected with said valve means for displacing the latter between said open and closed positions thereof, support means situated beneath said valve means for supporting a test tube beneath said valve means to receive the sample of the liquid discharging through said valve means when the latter is in its open position, first fluidpassage means operatively connected to said valve means for directing a cleaning fluid therethrough when said valve means is in its closed position, and second fluid-passage means selectively connected to said support means when the valve means is in its closed position for directing a cleaning fluid through the interior thereof for cleaning the surfaces contacted by the liquid sample as it flows into a test tube.
Claim 3
Dependent Claim
68 words
The combination of claim 1 and wherein said valve means includes a ball-valve member formed with said bore passing diametrically therethrough and having a vertical position when said valve means is in its open position for directing liquid from the vessel through said bore into a test tube carried by said support means, said bore having a horizontal position when said valve means is in its closed position.
Claim 4
Dependent Claim
105 words
The combination of claim 2 and wherein said first fluid passage means has an inlet and an outlet operatively connected to said valve means for introducing and discharging cleaning fluid, respectively, and said valve-actuating means together with said inlet and said outlet being connected to said valve means in a plane which contains the axis of said bore when said valve means is in its closed position, and said inlet and said outlet and valve-actuating means being equidistantly spaced with respect to each other circumferentially about a vertical axis passing perpendicularly through said bore centrally thereof when said valve means is in its closed position.
Claim 5
Dependent Claim
130 words
The combination of claim 2 and wherein said seal means includes a ring means surrounding and slidably engaging said ball valve in a fluid-tight manner, said ring means being formed with openings forming part of said first fluid passage means and communicating only with said bore when the latter is in its horizontal closed position, and said first fluid-passage means including fittings communicating with said openings of said ring means for directing cleaning fluid through one of said fittings and one of said openings of said ring means into said bore while the latter is in its horizontal position, the other of said fittings and the other of said openings receiving the cleaning fluid after it has passed through said bore and directing the cleaning fluid away from said bore.
Claim 6
Dependent Claim
81 words
The combination of claim 4 and wherein said ring means includes a pair of rings respectively having inner surfaces forming part of the sphere matching that formed by the exterior surface of said ball valve, said rings respectively having circular edges butting against each other, and only one of said rings being formed with notches at its circular edge, said notches being closed by the circular edge of the other of said rings for forming said openings communicating with said bore.
Claim 7
Dependent Claim
34 words
The combination of claim 5 and wherein both of said rings are formed with registering notches for receiving said valve-actuating means, said ball valve being formed with a cutout which receives said valve-actuating means.
Claim 8
Dependent Claim
90 words
The combination of claim 1 and wherein said second fluid-passage means is detachably connected to said support means beneath the first fluid-passage means and includes a fitting communicating with the interior of said support means beneath said valve means, said support means including a tubular structure having an inner surface for engaging and supporting a test tube, and said support means having at its outer surface a coupling means for receiving a discharge pipe for receiving the cleaning fluid introduced into the said fitting on said second fluid passage means.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |