US3730650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peristaltic pump and system therefor
Assignee: Bayer Corp
•
Filing: 1970-09-14
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Granted: 1973-05-01
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Expires: 1990-09-14
Abstract
Abstract A peristaltic pump is provided, which may have auxiliary fluid introduction, for a plurality of resilient pump tubes progressively occluded concurrently along a portion of their lengths, recurringly, to advance fluids therethrough by a pressure roller assembly; and a control system for the pump to render the roller assembly inoperative to advance fluids. A platen is mounted for movement from an operative position, in which the pump tubes are engaged and sandwiched between the platen and the roller assembly, to an inoperative position in a direction away from the roller assembly. In the inoperative position of the platen, a tube or tubes of the auxiliary fluid introduction, which includes a pressure pin cooperating with a pad engageable with the tube or tubes therebetween, are released. The platen is power-operated to move to at least one of the two aforementioned positions thereof.
Inventors
- 👤 N Kling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:05
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/12; F04B43/1223; G; G01; G01N; G01N35/00; G01N35/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
179 words
A fluid analysis system for transport of a sample comprising a support, a plurality of fluid-conveying pump tubes on the support, a platen assembly to back the pump tubes, a pressure assembly having means operable to engage concurrently and progressively occlude said tubes against said platen along their lengths, and to release said tubes, at least one of said tubes being connected to a source of sample for transport of the latter, one of said assemblies being movably mounted on said support to shift to occupy an operative position in which said tubes are compressed and to occupy an inoperative position in which said tubes are released from pressure thereon by the lastmentioned assembly, and power-operated means to move said one of the assemblies to each of said positions, a pressure source, a conduit connecting the pressure source to said power operated means, a vent valve located in the conduit, said vent valve responsive to a malfunction of said system to vent the poweroperated means and thereby shift the movable assembly to said inoperative position rendering the system inoperative.
Claim 2
Dependent Claim
179 words
A fluid analysis system for transport of a sample comprising a support, a plurality of fluid-conveying pump tubes on the support, a platen assembly to back the pump tubes, a pressure assembly having means operable to engage concurrently and progressively occlude said tubes against said platen along their lengths, and to release said tubes, at least one of said tubes being connected to a source of sample for transport of the latter, one of said assemblies being movably mounted on said support to shift to occupy an operative position in which said tubes are compressed and to occupy an inoperative position in which said tubes are released from pressure thereon by the lastmentioned assembly, and power-operated means to move said one of the assemblies to each of said positions, a pressure source, a conduit connecting the pressure source to said power operated means, a vent valve located in the conduit, said vent valve responsive to a malfunction of said system to vent the poweroperated means and thereby shift the movable assembly to said inoperative position rendering the system inoperative.
Claim 3
Dependent Claim
23 words
A system as defined in claim 1, wherein: said movable assembly is removably mounted on said support for access to the pump tubes.
Claim 4
Dependent Claim
27 words
A system as defined in claim 1, wherein: said movable assembly is mounted so as to be swingable on an axis for access to the pump tubes.
Claim 5
Dependent Claim
14 words
A system as defined in claim 1, wherein: said movable assembly is the platen.
Claim 6
Dependent Claim
32 words
A system as defined in claim 1, wherein said movable assembly is the platen and said means to shift the platen to said positions thereof comprises a piston operated by fluid pressure.
Claim 7
Dependent Claim
156 words
In an analysis system for transporting a sample, a peristaltic pump comprising a support; a plurality of pump tubes on the support; a platen assembly to back the pump tubes; a pressure assembly having means operable to engage concurrently and progressively occlude said tubes against said platen along their length, and to release said tubes; one of said assemblies being movably mounted on said support to shift rectilinearly to occupy an operative position in which said tubes are compressed and occupy an inoperative position in which said tubes are released from pressure thereon by the last-mentioned assembly; fluid-operated means to move the last-mentioned assembly to one of said positions; a fluid pressure source; conduit-forming means between said pressure source and said fluid-operated means; the pressure source being connected to a source of reagent to pressurize the last-mentioned source for transport of the reagent for mixture with the sample; and valve means to vent said fluid-operated means.
Claim 8
Dependent Claim
156 words
In an analysis system for transporting a sample, a peristaltic pump comprising a support; a plurality of pump tubes on the support; a platen assembly to back the pump tubes; a pressure assembly having means operable to engage concurrently and progressively occlude said tubes against said platen along their length, and to release said tubes; one of said assemblies being movably mounted on said support to shift rectilinearly to occupy an operative position in which said tubes are compressed and occupy an inoperative position in which said tubes are released from pressure thereon by the last-mentioned assembly; fluid-operated means to move the last-mentioned assembly to one of said positions; a fluid pressure source; conduit-forming means between said pressure source and said fluid-operated means; the pressure source being connected to a source of reagent to pressurize the last-mentioned source for transport of the reagent for mixture with the sample; and valve means to vent said fluid-operated means.
Claim 9
Dependent Claim
31 words
An analysis system as defined in claim 6: further comprising a timing signal device having an operative connection to said valve means to operate the latter to vent said fluid-operated means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |