US4096972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the selective delivery of portions of a fluid medium
Assignee: Mettler Instrumente AG
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Filing: 1976-12-20
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Granted: 1978-06-27
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Expires: 1996-12-20
Abstract
Abstract An apparatus for the selective delivery of portions of fluid, comprising a plurality of fluid delivery units, each of which includes a respective conveyor for conveying fluid to be delivered. A common drive means for the plurality of delivery units which is selectively connectible to the respective conveyor thereof for selective actuation of the delivery units.
Inventors
- 👤 Hermann Bartels
- 👤 Fritz Gallati
- 👤 Karl Lang
- 👤 Heinz Rutishauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:58
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/02; B01L3/0289; B01L3/0293
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
123 words
An apparatus for the selective delivery of portions of fluids, comprising: a plurality of fluid delivery units, each fluid delivery unit including a respective conveyor means for conveying fluid to be delivered, said fluid delivery units being stationarily arranged along a circle having an axis; a journalled member arranged along said axis; means common to said fluid delivery units and carried by said journalled member for actuating the conveyor means of said fluid delivery units; means for connecting said actuating means to the conveyor means; and electrically operated drive means connected to said journalled member for rotating said journalled member about said axis to selectively locate said actuating means and connecting means in a position for actuation of a selected fluid delivery unit.
Claim 2
Independent Claim
123 words
An apparatus for the selective delivery of portions of fluids, comprising: a plurality of fluid delivery units, each fluid delivery unit including a respective conveyor means for conveying fluid to be delivered, said fluid delivery units being stationarily arranged along a circle having an axis; a journalled member arranged along said axis; means common to said fluid delivery units and carried by said journalled member for actuating the conveyor means of said fluid delivery units; means for connecting said actuating means to the conveyor means; and electrically operated drive means connected to said journalled member for rotating said journalled member about said axis to selectively locate said actuating means and connecting means in a position for actuation of a selected fluid delivery unit.
Claim 3
Dependent Claim
47 words
The apparatus as defined in claim 1, further including: at least one titrating unit; said apparatus being in the form of a multiple burette; each titrating unit having at least one burette tip; and individual conduits for connecting each burette tip to a respective fluid delivery unit.
Claim 4
Dependent Claim
18 words
The apparatus as defined in claim 1, wherein said electrically operated drive means includes an electrical stepping motor.
Claim 5
Dependent Claim
29 words
The apparatus as defined in claim 1, wherein said actuating means, connecting means and drive means are arranged within a cylindrical surface, the generatrix of which is said circle.
Claim 6
Independent Claim
162 words
An apparatus for the selective delivery of portions of fluid, comprising: a plurality of fluid delivery units, each fluid delivery unit including a respective conveyor means for conveying fluid to be delivered, said fluid delivery units being stationarily arranged along a circle having an axis, each delivery unit including a multi-way valve for controlling flow of fluid into and from its associated delivery unit; a journalled member arranged along said axis; valve actuating means common to said multi-way valves and carried by said journalled member for actuating a selected multi-way valve; means common to said fluid delivery units and carried by said journalled member for actuating the conveyor means of said fluid delivery units; means for connecting said actuating means to the conveyor means; and electrically operated drive means connected to said journalled member for rotating said journalled member about said axis to selectively locate said actuating means and connecting means in a position for actuation of a selected fluid delivery unit.
Claim 7
Independent Claim
162 words
An apparatus for the selective delivery of portions of fluid, comprising: a plurality of fluid delivery units, each fluid delivery unit including a respective conveyor means for conveying fluid to be delivered, said fluid delivery units being stationarily arranged along a circle having an axis, each delivery unit including a multi-way valve for controlling flow of fluid into and from its associated delivery unit; a journalled member arranged along said axis; valve actuating means common to said multi-way valves and carried by said journalled member for actuating a selected multi-way valve; means common to said fluid delivery units and carried by said journalled member for actuating the conveyor means of said fluid delivery units; means for connecting said actuating means to the conveyor means; and electrically operated drive means connected to said journalled member for rotating said journalled member about said axis to selectively locate said actuating means and connecting means in a position for actuation of a selected fluid delivery unit.
Claim 8
Dependent Claim
39 words
The apparatus as defined in claim 5 wherein said actuating means includes a vertically movable entrainment member, said connecting means including a coupling member for each conveyor means, said entrainment member being selectively cooperable with a selected coupling member.
Claim 9
Dependent Claim
27 words
The apparatus as defined in claim 6, wherein said entrainment and said valve actuating means are arranged to be simultaneously connected to a selected fluid delivery unit.
Claim 10
Dependent Claim
25 words
The apparatus as defined in claim 5, wherein said multi-way valve actuating means and said conveyor means actuating means each include an electrical stepping motor.
References Cited (Backward Citations)
US2668097A
Cited
US2770531A
Cited
US3066830A
Cited
US3029847A
Cited
US3042259A
Cited
US3015415A
Cited
US3581575A
Cited
US3798431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |