Patent US4080113A successfully refreshed from Google Patents.
US4080113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deformable flexible tube constituting the body of a peristaltic pump
Assignee: Delasco SA
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Filing: 1976-12-22
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Granted: 1978-03-21
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Expires: 1996-12-22
Abstract
Abstract Deformable flexible tube constituting the body of a peristaltic pump having a stator and a rotor equipped with rollers progressively compressing the tube against the stator, said tube comprising two ribs extending along the length of the tube at points on the circumferential surface located on the same side of the line of contact of the inner walls when the tube is compressed, and symmetrical with respect to a plane perpendicular to this line of contact.
Inventors
- 👤 nee Lechat Helene Legeay
- 👤 Maurice Deleville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:39
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F04B43/0072
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
79 words
Deformable flexible tube constituting the body of a peristaltic pump which comprises a stator and a rotor equipped with rollers, which progressively compresses the tube against the stator, said tube comprising two outer ribs extending along the length of the tube at points on the circumferential surface located on the same side of the line of contact of the inner walls when the tube is compressed, and symmetrical with respect to a plane perpendicular to said line of contact.
Claim 2
Dependent Claim
79 words
Deformable flexible tube constituting the body of a peristaltic pump which comprises a stator and a rotor equipped with rollers, which progressively compresses the tube against the stator, said tube comprising two outer ribs extending along the length of the tube at points on the circumferential surface located on the same side of the line of contact of the inner walls when the tube is compressed, and symmetrical with respect to a plane perpendicular to said line of contact.
Claim 3
Dependent Claim
24 words
Tube as claimed in claim 1, wherein the length of said ribs is at least equal to the circumferential distance separating two consecutive rollers.
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) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |