Patent US3582234A successfully refreshed from Google Patents.
US3582234A
Expired / Lapsed
US
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Method and apparatus for the calibration of tubing to provide for a desired flow rate therethrough
Assignee: Technicon Corp
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Filing: 1969-07-14
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Granted: 1971-06-01
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Expires: 1989-07-14
Abstract
Abstract New and improved method and apparatus for the calibration of a tube to accurately provide for a predetermined flow rate therethrough are provided and include the monitoring of the flow rate through the tube and, if the latter exceeds said predetermined flow rate, the reduction of the internal diameter of said tube while continuing to monitor the flow rate therethrough until the latter coincides with the desired flow rate.
Inventors
- 👤 Jack Isreeli
- 👤 Aaron Kassel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:02
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/08; F; F04; F04B; F04B43/00; F04B43/12; F04B43/1223
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
69 words
In a method of providing for a desired flow rate through a tube of elastic material, the steps of, flowing fluid through said tube and, if the flow rate of said fluid is greater than said desired flow rate, reducing the internal diameter of said tube by the stretching of said tube longitudinally thereof while monitoring the flow rate therethrough until the latter coincides with said desired flow rate.
Claim 2
Dependent Claim
69 words
In a method of providing for a desired flow rate through a tube of elastic material, the steps of, flowing fluid through said tube and, if the flow rate of said fluid is greater than said desired flow rate, reducing the internal diameter of said tube by the stretching of said tube longitudinally thereof while monitoring the flow rate therethrough until the latter coincides with said desired flow rate.
Claim 3
Dependent Claim
24 words
In a method as in claim 1 wherein, the step of flowing fluid through said tube is accomplished by the pumping of fluid therethrough.
Claim 4
Dependent Claim
26 words
In a method as in claim 1 further comprising, the step of, maintaining said tube in the stretched condition thereof after said flow rates have coincided.
Claim 5
Dependent Claim
34 words
In a method as in claim 2 wherein, the step of pumping fluid through said tube is accomplished by the progressive occlusion of said tube longitudinally thereof in the direction of fluid flow therethrough.
Claim 6
Dependent Claim
70 words
In apparatus for providing a desired flow rate through a tube of elastic material comprising, means for flowing fluid through said tube, and means for reducing the internal diameter of said tube, if the flow rate therethrough is greater than said desired flow rate, while monitoring the flow rate therethrough until the latter coincides with said desired flow rate, said reducing means comprising means for stretching said tube longitudinally thereof.
Claim 7
Dependent Claim
70 words
In apparatus for providing a desired flow rate through a tube of elastic material comprising, means for flowing fluid through said tube, and means for reducing the internal diameter of said tube, if the flow rate therethrough is greater than said desired flow rate, while monitoring the flow rate therethrough until the latter coincides with said desired flow rate, said reducing means comprising means for stretching said tube longitudinally thereof.
Claim 8
Dependent Claim
21 words
In apparatus as in claim 5 wherein, said means to flow fluid through said tube comprise means to pump fluid therethrough.
Claim 9
Dependent Claim
24 words
In apparatus as in claim 5 further comprising, means for maintaining said tube in the stretched condition thereof after said flow rates have coincided.
Claim 10
Dependent Claim
24 words
In apparatus as in claim 6 further comprising, means for maintaining said tube in the stretched condition thereof after said flow rates have coincided.
Claim 11
Dependent Claim
31 words
In apparatus as in claim 6 wherein said means to pump fluid through said tube comprise means to progressively occlude said tube longitudinally thereof in the direction of fluid flow therethrough.
Claim 12
Dependent Claim
73 words
In a method of providing for a desired flow rate of a fluid flowing through a tube of elastic material, the steps of, monitoring the flow rate of said fluid flowing through said tube and, if said flow rate exceeds said desired flow rate, reducing the internal diameter of said tube by longitudinally stretching said tube while continuing to monitor the said flow rate until the latter coincides with said desired flow rate.
Claim 13
Dependent Claim
73 words
In a method of providing for a desired flow rate of a fluid flowing through a tube of elastic material, the steps of, monitoring the flow rate of said fluid flowing through said tube and, if said flow rate exceeds said desired flow rate, reducing the internal diameter of said tube by longitudinally stretching said tube while continuing to monitor the said flow rate until the latter coincides with said desired flow rate.
Claim 14
Dependent Claim
84 words
In apparatus for providing a desired flow rate of a fluid flowing through a tube of elastic material, means for monitoring the flow rate of saiD fluid flowing through said tube, and means for reducing the internal diameter of said tube, if the flow rate therethrough is greater than said desired flow rate, while continuing to monitor the flow rate therethrough until the latter coincides with said desired flow rate, said means for reducing the internal diameter including means for longitudinally stretching said tube.
Claim 15
Dependent Claim
84 words
In apparatus for providing a desired flow rate of a fluid flowing through a tube of elastic material, means for monitoring the flow rate of saiD fluid flowing through said tube, and means for reducing the internal diameter of said tube, if the flow rate therethrough is greater than said desired flow rate, while continuing to monitor the flow rate therethrough until the latter coincides with said desired flow rate, said means for reducing the internal diameter including means for longitudinally stretching said tube.
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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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |