Patent US3677577A successfully refreshed from Google Patents.
US3677577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for changing tubes in peristaltic pumps
Assignee: Polymetron AG
•
Filing: 1969-11-17
•
Granted: 1972-07-18
•
Expires: 1989-11-17
Abstract
Abstract An apparatus for changing tubes in peristaltic pumps comprising a coupling member arranged to receive the tubes of the peristaltic pump and a clamping means for pressing the coupling member against a support. The coupling member has a plurality of nipples corresponding to the number of pump tubes and each nipple is surrounded by a sealing ring. The inlet and outlet conduits to the peristaltic pump are inserted in a cover plate which is fixed to the support with a gasket being provided between the plate and the support. The clamping means is in the shape of a stirrup having a tightening screw and a pin on each side of the stirrup for engaging in a notch of the coupling member when the stirrup is moved backwards by means of the tightening screw.
Inventors
- 👤 Werner Krauer
- 👤 Alfred Martinelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:02
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/12; F04B43/1253; F04B43/1292; F16; F16L; F16L37/00; F16L37/56; G; G01; G01N; G01N35/00; G01N35/08; Y; Y10; Y10T; Y10T137/00; Y10T137/5109
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
240 words
A tube changing apparatus for use in a peristaltic pump or the like of the type having at least one tube; said apparatus comprising; support means with passages therethrough, a cover plate attached to said support means, said cover plate having conduit means disposed therein for conducting fluids therethrough, gasket means provided between said cover plate and said support means and having aperture means for conducting fluids therethrough coupling means with at least one first nipple means for receiving the at least one tube, said nipple means being in fluid communication with said passages, and detachable clamping means for pressing said coupling means against said support means, characterized in that said clamping means includes a U-shaped stirrup member having a base section and two arm members extending substantially perpendicularly from the ends of said base section, at least one of said arm members having pin means extending therefrom, said base section having screw means extending therethrough in a direction parallel to the arm members, said coupling means having at least one notch therein for engagement with said pin means, wherein said stirrup member is positionable about the support means and the coupling means to clamp them together by the engagement of the screw means with the support means and the engagement of the pin means with the at least one notch whereby fluid communication is established through the cover plate, the gasket means, the support means and the coupling means.
Claim 2
Dependent Claim
240 words
A tube changing apparatus for use in a peristaltic pump or the like of the type having at least one tube; said apparatus comprising; support means with passages therethrough, a cover plate attached to said support means, said cover plate having conduit means disposed therein for conducting fluids therethrough, gasket means provided between said cover plate and said support means and having aperture means for conducting fluids therethrough coupling means with at least one first nipple means for receiving the at least one tube, said nipple means being in fluid communication with said passages, and detachable clamping means for pressing said coupling means against said support means, characterized in that said clamping means includes a U-shaped stirrup member having a base section and two arm members extending substantially perpendicularly from the ends of said base section, at least one of said arm members having pin means extending therefrom, said base section having screw means extending therethrough in a direction parallel to the arm members, said coupling means having at least one notch therein for engagement with said pin means, wherein said stirrup member is positionable about the support means and the coupling means to clamp them together by the engagement of the screw means with the support means and the engagement of the pin means with the at least one notch whereby fluid communication is established through the cover plate, the gasket means, the support means and the coupling means.
Claim 3
Dependent Claim
60 words
A tube changing apparatus according to claim 1, characterized in that the passages correspond in number to the first nipple means and are disposed to communicate at one end thereof with respective first nipple means when the coupling means is clamped to the support means, the other end of the passages being disposed to communicate with said gasket aperture means.
Claim 4
Dependent Claim
41 words
A tube changing apparatus according to claim 1, characterized in that said gasket aperture means contains channels communicating with more than one passage at one side thereof, said channels communicating with said conduit means on the other side of the gasket.
Claim 5
Dependent Claim
60 words
A tube changing apparatus according to claim 2, characterized in that said coupling means includes second nipple means corresponding in number to the first nipple means and disposed at the opposite side of the coupling means from the first nipple means, and said support means contains recesses at the ends of the passages for receipt of said second nipple means.
Claim 6
Dependent Claim
35 words
A tube changing apparatus according to claim 4, characterized in that said coupling means includes annular recesses disposed about each of said second nipple means and sealing means disposed within each of these annular recesses.
Claim 7
Dependent Claim
44 words
A tube changing apparatus according to claim 1, characterized in that each arm member is provided with a pin means for engagement each with one of two notches in the coupling means, said two notches being disposed at opposite edges of the coupling means.
Claim 8
Dependent Claim
36 words
A tube changing apparatus according to claim 6, characterized in that each of the arm members is provided with a guide bolt for engagement with respective guide slots at two opposite sides of the support means.
Claim 9
Dependent Claim
47 words
A tube changing apparatus according to claim 1, characterized in that the passages are L-shaped with the horizontal portion of the L positioned to be in communication with the coupling means and the vertical portion of the L positioned to be in communication with the gasket means.
Claim 10
Dependent Claim
70 words
A tube changing apparatus according to claim 8, characterizeD in that each arm member is provided with a pin means for engagement each with one of two notches in the coupling means, said two notches being disposed at opposite sides of the coupling means, and each of the arm members being provided with a guide bolt for engagement with respective guide slots at two opposite sides of the support means.
References Cited (Backward Citations)
DD61399A
Cited
US1250944A
Cited
FR578873A
Cited
DE1005793B
Cited
US2876795A
Cited
US3282612A
Cited
US3407834A
Cited
US3548849A
Cited
US3469863A
Cited
US3480036A
Cited
US3516691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |