US3816035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peristaltic pump
Assignee: Individual
•
Filing: 1972-10-24
•
Granted: 1974-06-11
•
Expires: 1992-10-24
Abstract
Abstract A peristaltic pump of the type having a deformable tube carrying a fluid and comprising a frame, a drive shaft mounted rotatably on the frame, a rotor having two axially spaced plates mounted rotatably about the drive shaft, rollers mounted rotatably between the plates and cooperating with the deformable tube, and a gearwheel provided at one of the ends of each of the rollers and connected thereto. The said gearwheel having a larger diameter than the roller, and a drive gearwheel connected to drive shaft and meshing with all the gearwheels connected to the rollers. The deformable tube is mounted on the rollers with an elastic tension such as to ensure its closure at the points of contact between the tube and the rollers.
Inventors
- 👤 E Malbec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:51
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/12; F04B43/1215
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
155 words
A peristaltic pump of the type having a deformable tube carrying a fluid, and comprising a frame, a drive shaft mounted rotatably on the frame, a rotor having two axially spaced plates mounted rotatably about the drive shaft, rollers mounted roTatably between said plates, said deformable tube being mounted on the rollers with an elastic tension such as to ensure its closure at points of contact between the tube and the rollers, end junction portions are connected to the tube ends, each of said junction portions being provided with a series of ridges for engagement in retaining slots formed on the frame in order to adjust tension in said tube, a gearwheel provided at one of the ends of each of the rollers and connected thereto, said gearwheel having a larger diameter than the roller, and a drive gearwheel connected to said drive shaft and meshing with all the said gearwheels connected to the rollers.
Claim 2
Dependent Claim
155 words
A peristaltic pump of the type having a deformable tube carrying a fluid, and comprising a frame, a drive shaft mounted rotatably on the frame, a rotor having two axially spaced plates mounted rotatably about the drive shaft, rollers mounted roTatably between said plates, said deformable tube being mounted on the rollers with an elastic tension such as to ensure its closure at points of contact between the tube and the rollers, end junction portions are connected to the tube ends, each of said junction portions being provided with a series of ridges for engagement in retaining slots formed on the frame in order to adjust tension in said tube, a gearwheel provided at one of the ends of each of the rollers and connected thereto, said gearwheel having a larger diameter than the roller, and a drive gearwheel connected to said drive shaft and meshing with all the said gearwheels connected to the rollers.
Claim 3
Dependent Claim
48 words
A peristaltic pump according to claim 1 wherein said deformable tube has adjustable end means adapted to be selectively positioned and mounted in said frame, said adjustable end means causing said deformable tube when positioned against said rollers to be stretched and pinched in contact with said rollers.
References Cited (Backward Citations)
US2899907A
Cited
FR1351813A
Cited
US2696173A
Cited
US3227092A
Cited
US3463092A
Cited
US3403631A
Cited
US3582234A
Cited
US3622252A
Cited
US3768934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |