US3140666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peristaltic pump
Assignee: AMERICAN INSTR CO Inc
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Filing: 1962-06-11
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Granted: 1964-07-14
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Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Lauchlin M Currie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:36
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/12; F04B43/1253; F04B43/1284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PERISTALTIC PUMP COMPRISING A SUPPORT, A SPIDER MEMBER ROTATABLY MOUNTED ON SAID SUPPORT, A PLURALITY OF TUBE-SQUEEZING CAM ELEMENTS ON SAID SPIDER MEMBER, SAID CAM ELEMENTS BEING SPACED AROUND A CIRCLE CONCENTRIC WITH THE AXIS OF SAID SPIDER MEMBER, A LEAF SPRING SECURED AT ONE END PORTION TO SAID SUPPORT AND HAVING ITS OTHER END PORTION EXTENDING OUTWARDLY ADJACENT AT LEAST ONE OF THE CAM ELEMENTS AND BEING ARRANGED TO EXERT YIELDABLE INWARD FORCE THEREAGAINST, MEANS TO ROTATE SAID SPIDER MEMBER, AND A FLEXIBLE TUBE EXTENDING BETWEEN THE LEAF
Claim 2
Dependent Claim
90 words
A PERISTALTIC PUMP COMPRISING A SUPPORT, A SPIDER MEMBER ROTATABLY MOUNTED ON SAID SUPPORT, A PLURALITY OF TUBE-SQUEEZING CAM ELEMENTS ON SAID SPIDER MEMBER, SAID CAM ELEMENTS BEING SPACED AROUND A CIRCLE CONCENTRIC WITH THE AXIS OF SAID SPIDER MEMBER, A LEAF SPRING SECURED AT ONE END PORTION TO SAID SUPPORT AND HAVING ITS OTHER END PORTION EXTENDING OUTWARDLY ADJACENT AT LEAST ONE OF THE CAM ELEMENTS AND BEING ARRANGED TO EXERT YIELDABLE INWARD FORCE THEREAGAINST, MEANS TO ROTATE SAID SPIDER MEMBER, AND A FLEXIBLE TUBE EXTENDING BETWEEN THE LEAF
References Cited (Backward Citations)
US328472A
Cited
US1335672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |