Patent US4096972A successfully refreshed from Google Patents.
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 12:11
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.
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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 |