US3722790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sequential centrifugal treatment of liquid samples
Assignee: Rohe Scientific Corp
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Filing: 1969-07-30
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Granted: 1973-03-27
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Expires: 1989-07-30
Abstract
Abstract System for the sequential treatment of liquid chemical samples comprising the steps of depositing the samples in a series of top-like containers having a peripheral side chamber. The containers are placed on a belt and moved past a centrifugal field wherein the containers are rotated. The containers are then removed at a terminal zone and the heavier sample component remains in the side chamber as the lighter components flow to the bottom of the container.
Inventors
- 👤 S Natelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:24
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/502; B01L3/5021; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; G; G01; G01N; G01N15/00; G01N15/04; G01N15/042; G01N35/00; G01N35/02; G01N35/021; B04B11/00; B04B11/04; B04B2011/046; G01N2035/00465; G01N2035/00495; G01N35/04; G01N2035/046; G01N2035/0465; G01N35/10; G01N35/1004; G01N35/1081; G01N35/1083
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
77 words
A process for the sequential centrifugation of liquid chemical samples comprising the steps of depositing the samples in a series of containers each having a peripheral side chamber, causing each of said containers to spin sequentially on its own substantially vertical axis for a predetermined time period so as to separate at least one component of the samples into said chambers and decelerating the rotation gradually until said containers come to rest without remixing of the components.
Claim 2
Dependent Claim
77 words
A process for the sequential centrifugation of liquid chemical samples comprising the steps of depositing the samples in a series of containers each having a peripheral side chamber, causing each of said containers to spin sequentially on its own substantially vertical axis for a predetermined time period so as to separate at least one component of the samples into said chambers and decelerating the rotation gradually until said containers come to rest without remixing of the components.
Claim 3
Independent Claim
86 words
An apparatus for the sequential centrifugal treatment of liquid samples, comprising in combination: a. a movable carrier having bearing means mounted thereon, said carrier having a travel path; b. at least one vertical shaft rotatably mounted on said bearing means, said shaft having a shaft rotator at the lower end thereof and a trunnion cup at the upper end thereof; and, c. a work station, rotation means at said work station along said travel path to rotate said shaft rotator as dwells in said work station.
Claim 4
Independent Claim
86 words
An apparatus for the sequential centrifugal treatment of liquid samples, comprising in combination: a. a movable carrier having bearing means mounted thereon, said carrier having a travel path; b. at least one vertical shaft rotatably mounted on said bearing means, said shaft having a shaft rotator at the lower end thereof and a trunnion cup at the upper end thereof; and, c. a work station, rotation means at said work station along said travel path to rotate said shaft rotator as dwells in said work station.
Claim 5
Dependent Claim
80 words
An automated centrifuge arrangement for use in an automated system of analysis comprising in combination a plurality of holders to hold containers, said holders including a central bearing, a cup shaped container receiving section over said bearing and a rotating portion below said bearing, means for supporting said holders; and, a work station including rotation means for rotating said holders about the central axis of said container receiving section, and means for decelerating and bringing said holders gradually to rest.
Claim 6
Dependent Claim
80 words
An automated centrifuge arrangement for use in an automated system of analysis comprising in combination a plurality of holders to hold containers, said holders including a central bearing, a cup shaped container receiving section over said bearing and a rotating portion below said bearing, means for supporting said holders; and, a work station including rotation means for rotating said holders about the central axis of said container receiving section, and means for decelerating and bringing said holders gradually to rest.
Claim 7
Dependent Claim
38 words
An arrangement as claimed in claim 3 including two opposed vertically turning wheels, said travel means comprising an endless travel line traveling between said two opposed vertically turning wheels at least one of which is the driver wheel.
Claim 8
Dependent Claim
54 words
An arrangement as claimed in claim 3, including a turbine, said rotation means being an air jet directed at said turbine said air jet moving along with said turbine maintaining its relative position to said turbine for a preset distance, said air jet then being interrupted to allow said holder to come to rest.
Claim 9
Dependent Claim
22 words
An arrangement as claimed in claim 3, including travel means for bringing and removing said holders to and from said work station.
Claim 10
Dependent Claim
21 words
An arrangement as claimed in claim 6 wherein said travel means comprises an endless travel line turning in the horizontal plane.
Claim 11
Dependent Claim
25 words
An arrangement as claimed in claim 7 wherein said travel means includes a driven and a driver sprocket and said travel line comprises a chain.
Claim 12
Dependent Claim
59 words
An arrangement as claimed in claim 7 wherein said holders rotating portion comprises an outwardly tapered roller and said rotating means comprises a rotating disc, said roller being gradually engaged by said disc as it enters the field, said roller''s rotational speed increasing as the engagement by said disc continues and gradually decreasing as said roller leaves said field.
Claim 13
Dependent Claim
51 words
An arrangement as claimed in claim 6, said holders'' including a vertically disposed shaft disposed in said central bearing with upper and lower shaft portions, said cup-shaped container receiving section being mounted on said upper portion and said rotating portion being mounted on said lower portion responsive to said rotating means.
Claim 14
Dependent Claim
57 words
An arrangement as claimed in claim 6 wherein said holders'' rotating portion comprises a roller and said rotating means comprises a rotating disc, said roller being gradually engaged by said disc as it enters the field said roller''s rotational speed increasing as the engagement by said disc continues and gradually decreasing as said roller leaves said field.
Claim 15
Dependent Claim
64 words
An arrangement as claimed in claim 6 wherein said holders'' rotating portion comprises a blade means and said rotating means comprises gAs jet means disposed for directing an air jet at said blade means, said blade means gradually turning as said gas jet means hits the blade means entering the field, increasing through the field and decreasing as the blade means leave the field.
Claim 16
Dependent Claim
20 words
An arrangement as claimed in claim 6, wherein said travel means comprises a circular disc which rotates on its axis.
Claim 17
Dependent Claim
20 words
An arrangement as claimed in claim 6, including means for bringing and removing said containers to and from said holders.
Claim 18
Independent Claim
132 words
An apparatus for the sequential centrifugal treatment of liquid samples comprising in combination. a. travel means moving along a horizontal path of travel past a work station; b. a centrifuging field work station including a plurality of gas feed lines each terminating in a jet section; c. at least one holder mounted on said travel means including a central bearing connected to said travel means; lower blade means which will rotate as said holder enters said field because of the jet of gas thereon and an upper cup-like section having a pivoted clip therein, said clip having an engaging upper section and a weighted lower section, said lower section flying outwards upon the rotation of said holder to cause said engaging upper section to engage and hold a container in said holder.
Claim 19
Independent Claim
132 words
An apparatus for the sequential centrifugal treatment of liquid samples comprising in combination. a. travel means moving along a horizontal path of travel past a work station; b. a centrifuging field work station including a plurality of gas feed lines each terminating in a jet section; c. at least one holder mounted on said travel means including a central bearing connected to said travel means; lower blade means which will rotate as said holder enters said field because of the jet of gas thereon and an upper cup-like section having a pivoted clip therein, said clip having an engaging upper section and a weighted lower section, said lower section flying outwards upon the rotation of said holder to cause said engaging upper section to engage and hold a container in said holder.
Claim 20
Dependent Claim
17 words
An apparatus as claimed in claim 15 said gas feed lines being defined in rotating radial lines.
Claim 21
Dependent Claim
91 words
A process for the separation of a multiplicity of samples of a two phase system, where the two phases are of different density, at least one of the phases being a liquid which comprises the steps of depositing the samples in a series of containers each having a peripheral side chamber, mounting said containers on a carrier, moving said containers continuously past a centrifuging zone, rotating the containers around their central substantially vertical axes to separate at least one component and removing the containers from the carriers at a terminal zone.
Claim 22
Dependent Claim
91 words
A process for the separation of a multiplicity of samples of a two phase system, where the two phases are of different density, at least one of the phases being a liquid which comprises the steps of depositing the samples in a series of containers each having a peripheral side chamber, mounting said containers on a carrier, moving said containers continuously past a centrifuging zone, rotating the containers around their central substantially vertical axes to separate at least one component and removing the containers from the carriers at a terminal zone.
Claim 23
Dependent Claim
28 words
The process of claim 17 being performed in an automated system of chemical analysis, where samples of the supernatant are removed after separation of phases for further processing.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |