US3128716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peristaltic pump
Assignee: Beckman Coulter Inc
•
Filing: 1961-07-17
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Granted: 1964-04-14
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Expires: 1981-07-17
Abstract
No abstract record available.
Inventors
- 👤 Richard C Stallman
- 👤 William M Oates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:07
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F04B43/0072; F04B43/08; F04B43/082; F04B7/00; F04B7/0042; F04B7/0053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A PERISTALTIC PUMP COMPRISING A FRAME, AN ARM PIVOTALLY SECURED TO SAID FRAME, A RESILIENT TUBE, SAID RESILIENT TUBE POSITIONED ALONG A SURFACE OF THE ARM FACING THE DIRECTION OF PIVOTAL ROTATION, A PORTION OF SAID TUBE BEING RESTRAINED FROM AXIAL MOVEMENT, ANOTHER PORTION OF SAID TUBE BEING SLIDABLY RETAINED ALONG SAID SURFACE, MEANS FOR RESILIENTLY URGING SAID ARM ABOUT ITS PIVOT POINT IN A DIRECTION TOWARD SAID TUBE, MEANS DISPOSED FOR ECCENTRIC ROTATION ON SAID FRAME, SAID LAST NAMED MEANS BEING MOV-
Claim 2
Dependent Claim
83 words
A PERISTALTIC PUMP COMPRISING A FRAME, AN ARM PIVOTALLY SECURED TO SAID FRAME, A RESILIENT TUBE, SAID RESILIENT TUBE POSITIONED ALONG A SURFACE OF THE ARM FACING THE DIRECTION OF PIVOTAL ROTATION, A PORTION OF SAID TUBE BEING RESTRAINED FROM AXIAL MOVEMENT, ANOTHER PORTION OF SAID TUBE BEING SLIDABLY RETAINED ALONG SAID SURFACE, MEANS FOR RESILIENTLY URGING SAID ARM ABOUT ITS PIVOT POINT IN A DIRECTION TOWARD SAID TUBE, MEANS DISPOSED FOR ECCENTRIC ROTATION ON SAID FRAME, SAID LAST NAMED MEANS BEING MOV-
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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |