US3604269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic gas chromatographic sample injection device
Assignee: Pharmacia and Upjohn Co
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Filing: 1969-06-20
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Granted: 1971-09-14
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Expires: 1989-06-20
Abstract
Abstract An apparatus for periodically injecting samples of fluid into a receptacle. The apparatus includes a movable frame which supports a syringe having a passageway adapted to be moved through an opening in the receptacle. The syringe controls the collection of a predetermined fluid sample and it is flushed after each use. The syringe is moved by the apparatus to inject the predetermined sample through the passageway into the receptacle.
Inventors
- 👤 Edwin W Smith
- 👤 Ernest J Kubiak Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:39
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/24; G01N35/00; G01N35/10; G01N35/1095
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
213 words
An apparatus for injecting a sample of liquid into an opening in a receptacle, comprising: base means; a mounting member supported by said base means for reciprocable movement relative to said base means; first actuating means connected to said base means for effecting said movement of said mounting member; syringe means supported on said mounting member and having outlet means arranged for inseRtion into said opening in said receptacle, said syringe means having a chamber and a plunger slideably disposed in said chamber for discharging liquid from said chamber through said outlet means; a source of liquid; means adapted to provide a driving force for said liquid; conduit means communicating between said chamber and said driving force means; second actuating means supported by said mounting member and connected to said plunger for moving same relative to said syringe means, including a position blocking said communication; and control means for effecting operation of said first and second actuating means to permit said liquid to move through said outlet means and said chamber for a selected period of time after which said plunger blocks said communication to limit the liquid in said chamber to a selected amount and said syringe means is thereafter caused to inject said selected amount of said liquid into said receptacle.
Claim 2
Independent Claim
213 words
An apparatus for injecting a sample of liquid into an opening in a receptacle, comprising: base means; a mounting member supported by said base means for reciprocable movement relative to said base means; first actuating means connected to said base means for effecting said movement of said mounting member; syringe means supported on said mounting member and having outlet means arranged for inseRtion into said opening in said receptacle, said syringe means having a chamber and a plunger slideably disposed in said chamber for discharging liquid from said chamber through said outlet means; a source of liquid; means adapted to provide a driving force for said liquid; conduit means communicating between said chamber and said driving force means; second actuating means supported by said mounting member and connected to said plunger for moving same relative to said syringe means, including a position blocking said communication; and control means for effecting operation of said first and second actuating means to permit said liquid to move through said outlet means and said chamber for a selected period of time after which said plunger blocks said communication to limit the liquid in said chamber to a selected amount and said syringe means is thereafter caused to inject said selected amount of said liquid into said receptacle.
Claim 3
Independent Claim
180 words
An apparatus for injecting a sample of liquid into an opening in a receptacle, comprising: base means; a mounting member supported by said base means for reciprocable movement relative to said base means; first actuating means connected to said base means for effecting said movement of said mounting member; syringe means supported on said mounting member and having outlet means arranged for insertion into said opening in said receptacle, said syringe means having a chamber and a plunger slideably disposed in said chamber for discharging liquid from said chamber through said outlet means; a source of liquid under pressure; conduit means communicating between said source and said chamber; second actuating means supported by said mounting member and connected to said syringe means for effecting relative movement between said outlet means and said plunger; and control means for effecting operation of said first and second actuating means to permit said liquid to discharge through said outlet means for a selected period of time after which said syringe means is caused to inject a selected amount of a liquid into said receptacle.
Claim 4
Independent Claim
180 words
An apparatus for injecting a sample of liquid into an opening in a receptacle, comprising: base means; a mounting member supported by said base means for reciprocable movement relative to said base means; first actuating means connected to said base means for effecting said movement of said mounting member; syringe means supported on said mounting member and having outlet means arranged for insertion into said opening in said receptacle, said syringe means having a chamber and a plunger slideably disposed in said chamber for discharging liquid from said chamber through said outlet means; a source of liquid under pressure; conduit means communicating between said source and said chamber; second actuating means supported by said mounting member and connected to said syringe means for effecting relative movement between said outlet means and said plunger; and control means for effecting operation of said first and second actuating means to permit said liquid to discharge through said outlet means for a selected period of time after which said syringe means is caused to inject a selected amount of a liquid into said receptacle.
Claim 5
Dependent Claim
62 words
An apparatus according to claim 2, including exhaust means supported on said base means and having inlet means near said outlet means, said exhaust means being moved intermittently by said control means into and out of a position aligned with the discharge end of said outlet means to collect said liquid discharging from said outlet means during said selected period of time.
Claim 6
Dependent Claim
97 words
An apparatus according to claim 3, wherein said second actuating means comprises: support means slideably mounted upon said mounting member for movement in a direction parallel with the movement of said mounting member; a first pressure fluid-operated cylinder connected between said mounting member and said support means for effecting said movement of said support means; and a second pressure fluid-operated cylinder connected between said support means and said plunger, whereby said first cylinder urges said plunger into a position blocking said conduit means and said second cylinder causes said plunger to discharge said selected amount of liquid.
Claim 7
Dependent Claim
212 words
Apparatus for injecting a sample liquid into an upwardly facing opening of a gas chromatograph, comprising: base means; a mounting member supported by said base means for vertical movement relative to said base means; first actuating means connected between said base means and said mounting member for effecting said vertical movement of said mounting member; a syringe secured to said mounting member and having outlet means vertically aligned with said opening in said chromatograph, said syringe having a chamber and a plunger slideably disposed in said chamber for discharging liquid from said chamber through said outlet means; a source of liquid under pressure; conduit means communicating between said source and said chamber; second actuating means supported by said mounting membEr and connected to said plunger for moving said plunger vertically relative to said syringe; exhaust means having inlet means supported on said base means for movement into and out of a position between said opening in said chromatograph and said outlet means; and control means for effecting operation of said first and second actuating means to permit said liquid to discharge through said outlet means into said inlet means for a selected period of time after which said syringe is caused to inject a selected amount of said liquid into said chromatograph.
Claim 8
Dependent Claim
212 words
Apparatus for injecting a sample liquid into an upwardly facing opening of a gas chromatograph, comprising: base means; a mounting member supported by said base means for vertical movement relative to said base means; first actuating means connected between said base means and said mounting member for effecting said vertical movement of said mounting member; a syringe secured to said mounting member and having outlet means vertically aligned with said opening in said chromatograph, said syringe having a chamber and a plunger slideably disposed in said chamber for discharging liquid from said chamber through said outlet means; a source of liquid under pressure; conduit means communicating between said source and said chamber; second actuating means supported by said mounting membEr and connected to said plunger for moving said plunger vertically relative to said syringe; exhaust means having inlet means supported on said base means for movement into and out of a position between said opening in said chromatograph and said outlet means; and control means for effecting operation of said first and second actuating means to permit said liquid to discharge through said outlet means into said inlet means for a selected period of time after which said syringe is caused to inject a selected amount of said liquid into said chromatograph.
Claim 9
Dependent Claim
81 words
An apparatus according to claim 5, wherein said first actuating means is a first pressure fluid-operated cylinder having a piston connected to said mounting member; wherein said second actuating means comprises a second pressure fluid-operated cylinder secured to said mounting member and having an upright piston connected to a frame and adapted to move said frame relative to said mounting member, and a third pressure fluid-operated cylinder carried by said frame and having a downwardly extending piston connected to said plunger.
Claim 10
Dependent Claim
71 words
An apparatus according to claim 6, wherein said outlet means of said syringe is a needle; wherein said first pressure cylinder moves said needle from a position above said inlet means through said opening in said chromatograph; wherein said second pressure cylinder moves said plunger into a position blocking said conduit means; and wherein said third pressure cylinder causes said plunger to discharge said selected amount of liquid into said chromatograph.
Claim 11
Dependent Claim
79 words
An apparatus according to claim 5, wherein said exhaust means includes a source of reduced pressure and first tubular means communicating between said inlet means and said source of reduced pressure; and said inlet means comprises a second, rigid tubular means supported upon said base means and having an end portion with an inlet opening therein aligned with said outlet means when said end portion is in said position between said outlet means and said opening in said chromatograph.
Claim 12
Dependent Claim
81 words
An apparatus according to claim 5, wherein said actuating means comprise fluid-operated cylinders and a source of fluid connected to said cylinders; wherein said control means comprises a plurality of cam-actuated valves connected between said cylinders and said source of fluid, and a plurality of cams mounted upon shaft means supported by said base means, said cams being operably connected with said valve means for controlling the flow of fluid to said cylinders; and drive means for rotating said shaft means.
Claim 13
Independent Claim
182 words
An apparatus for injecting a sample of fluid into an opening in a receptacle, comprising: syringe means having outlet means and means supporting same for alignment with and insertion into said opening in said receptacle, said syringe means having a chamber and a plunger slideably disposed in said chamber for discharging liquid from said chamber through said outlet means; a source of liquid; means adapted to provide a driving force for said liquid; conduit means communicating between said chamber and said driving force means; actuating means drivingly interconnected to said plunger for moving same between a plurality of positions, including a position blocking the communication between said conduit means and said chamber; and control means for effecting operation of said actuating means (1) to permit said liquid to move through said outlet means and said chamber for a selected period of time, (2) to thereafter move said plunger to block said communication to limit the liquid in said chamber to a selected amount, and (3) to thereafter cause said syringe means to inject said selected amount of said liquid into said receptacle.
Claim 14
Independent Claim
182 words
An apparatus for injecting a sample of fluid into an opening in a receptacle, comprising: syringe means having outlet means and means supporting same for alignment with and insertion into said opening in said receptacle, said syringe means having a chamber and a plunger slideably disposed in said chamber for discharging liquid from said chamber through said outlet means; a source of liquid; means adapted to provide a driving force for said liquid; conduit means communicating between said chamber and said driving force means; actuating means drivingly interconnected to said plunger for moving same between a plurality of positions, including a position blocking the communication between said conduit means and said chamber; and control means for effecting operation of said actuating means (1) to permit said liquid to move through said outlet means and said chamber for a selected period of time, (2) to thereafter move said plunger to block said communication to limit the liquid in said chamber to a selected amount, and (3) to thereafter cause said syringe means to inject said selected amount of said liquid into said receptacle.
Claim 15
Dependent Claim
82 words
An apparatus according to claim 10, wherein said actuating means includes: first drive means connected to said plunger for causing linear movement thereof in a first direction; second drive means connected in series with said first drive means for causing linear movement thereof in a second direction parallel to said first direction; and third drive means connected to said supporting means for causing linear movement of said supporting means and said syringe means in a third direction parallel to said first direction.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |