US3719090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for measurement of particle size and percent solids in multiple process flowstreams
Assignee: AUTOMETRICS CO
•
Filing: 1971-03-08
•
Granted: 1973-03-06
•
Expires: 1991-03-08
Abstract
Abstract Method and apparatus for measurement of particle size and percent solids in multiple process flowstreams. A plurality of process flowstreams are presented to one sensing system adapted to measure particle size and percent solids in a liquid-solids slurry in a manner to permit generation of electrical output data representative thereof in a sequence and identifiable with the process flowstreams being measured. The electrical output data is sequentially applied to electrical controls associated with a flowstream to regulate particle size and percent solids therein.
Inventors
- 👤 R Hathaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:00
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/02
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
201 words
Apparatus for automatically analyzing and controlling the mean particle size and percent solids content of a plurality of slurry flowstreams comprising: sampling means adapted for removing a sample from each flowstream; an automatic analyzer including a sensor section and an electrical section capable of generating an electrical signal which is a function of the mean particle size and the percent solids in a slurry; means including conduit means connecting the sampling means to the sensor section for delivery of a selected sample thereto to be analyzed; air eliminator means for removing entrained gases from a sample stream prior to analysis located in said conduit means intermediate the sampling means and the sensor section; recorder-controller means adapted for recording the signals associated with one or more flowstream samples and/or for controlling variables associated with one or more corresponding flowstreams; circuit means including switching means for selectively transmitting the electrical signal generated by the analysis of a sample from a selected flowstream to a recorder-controller device associated with that flowstream; and, synchronizing means for synchronizing the analysis of a sample from the selected flowstream with the transmittal to and identification of the generated electrical signal therefrom to the recorder-controller associated with that flowstream.
Claim 2
Dependent Claim
201 words
Apparatus for automatically analyzing and controlling the mean particle size and percent solids content of a plurality of slurry flowstreams comprising: sampling means adapted for removing a sample from each flowstream; an automatic analyzer including a sensor section and an electrical section capable of generating an electrical signal which is a function of the mean particle size and the percent solids in a slurry; means including conduit means connecting the sampling means to the sensor section for delivery of a selected sample thereto to be analyzed; air eliminator means for removing entrained gases from a sample stream prior to analysis located in said conduit means intermediate the sampling means and the sensor section; recorder-controller means adapted for recording the signals associated with one or more flowstream samples and/or for controlling variables associated with one or more corresponding flowstreams; circuit means including switching means for selectively transmitting the electrical signal generated by the analysis of a sample from a selected flowstream to a recorder-controller device associated with that flowstream; and, synchronizing means for synchronizing the analysis of a sample from the selected flowstream with the transmittal to and identification of the generated electrical signal therefrom to the recorder-controller associated with that flowstream.
Claim 3
Dependent Claim
201 words
Apparatus for automatically analyzing and controlling the mean particle size and percent solids content of a plurality of slurry flowstreams comprising: sampling means adapted for removing a sample from each flowstream; an automatic analyzer including a sensor section and an electrical section capable of generating an electrical signal which is a function of the mean particle size and the percent solids in a slurry; means including conduit means connecting the sampling means to the sensor section for delivery of a selected sample thereto to be analyzed; air eliminator means for removing entrained gases from a sample stream prior to analysis located in said conduit means intermediate the sampling means and the sensor section; recorder-controller means adapted for recording the signals associated with one or more flowstream samples and/or for controlling variables associated with one or more corresponding flowstreams; circuit means including switching means for selectively transmitting the electrical signal generated by the analysis of a sample from a selected flowstream to a recorder-controller device associated with that flowstream; and, synchronizing means for synchronizing the analysis of a sample from the selected flowstream with the transmittal to and identification of the generated electrical signal therefrom to the recorder-controller associated with that flowstream.
Claim 4
Dependent Claim
201 words
Apparatus for automatically analyzing and controlling the mean particle size and percent solids content of a plurality of slurry flowstreams comprising: sampling means adapted for removing a sample from each flowstream; an automatic analyzer including a sensor section and an electrical section capable of generating an electrical signal which is a function of the mean particle size and the percent solids in a slurry; means including conduit means connecting the sampling means to the sensor section for delivery of a selected sample thereto to be analyzed; air eliminator means for removing entrained gases from a sample stream prior to analysis located in said conduit means intermediate the sampling means and the sensor section; recorder-controller means adapted for recording the signals associated with one or more flowstream samples and/or for controlling variables associated with one or more corresponding flowstreams; circuit means including switching means for selectively transmitting the electrical signal generated by the analysis of a sample from a selected flowstream to a recorder-controller device associated with that flowstream; and, synchronizing means for synchronizing the analysis of a sample from the selected flowstream with the transmittal to and identification of the generated electrical signal therefrom to the recorder-controller associated with that flowstream.
Claim 5
Dependent Claim
47 words
The apparatus of claim 1 wherein a single recorder-controller is associated with a plurality of flowstreams and is provided with means responsiVe to selected transmitted signals from said switching means of the circuit means to identify the transmitted and recorded signals with the corresponding flowstream being analyzed.
Claim 6
Dependent Claim
25 words
The apparatus of claim 1 wherein there are provided a plurality of recorder-controller devices with at least one recorder-controller device being associated with each flowstream.
Claim 7
Dependent Claim
63 words
The apparatus of claim 1 including a sensor section corresponding to each flowstream sampled, each sensor having an output, and electrical switch means adapted to connect the output of each sensor section to the electrical section when the circuit switching means connects the output of the electrical section to the recorder-controller corresponding to the selected flowstream at the direction of the synchronizing means.
Claim 8
Dependent Claim
65 words
The apparatus according to claim 1 including sample switching and handling means positioned in the conduit means between the sampling means and the sensor section adapted to transfer a sample from a selected flowstream into the sensor section when the circuit switching means connects the output of the electrical section to the recorder-controller corresponding to the selected flowstream at the direction of the synchronizing means.
Claim 9
Dependent Claim
27 words
The apparatus according to claim 4 wherein there is provided a sampling means for each flowstream sampled connected to deliver a sample to a corresponding sensor section.
Claim 10
Dependent Claim
26 words
The apparatus of claim 5 wherein the air eliminator means is located in said conduit intermediate the sample handling and switching means and the sensor section.
Claim 11
Dependent Claim
26 words
The apparatus of claim 5 wherein an air eliminator means is located in the conduit between each sampling means and the sample handling and switching means.
Claim 12
Dependent Claim
120 words
The apparatus of claim 5 wherein the sample switching and handling means comprises a slurry receiving chamber adapted to receive and receiving samples of slurry from said sampling means via inlet conduits having ends terminating below the normal liquid level in said chamber, means establishing a normal liquid level in said chamber, an outlet conduit having its inlet end positioned beneath the normal liquid level of said chamber and movable conduit connecting means adapted to connect a selected inlet conduit end with the inlet of said outlet conduit on command of the synchronizing means to transfer a sample from a selected flowstream via said selected inlet conduit, said movable conduit connecting means and said outlet means to said sensor section.
Claim 13
Dependent Claim
118 words
The apparatus of claim 5 wherein the sample switching and handling means comprises a slurry receiving chamber adapted to receive and receiving samples of slurry from said sampling means via inlet conduits having ends terminating below the normal liquid level in said chamber, means establishing a normal liquid level in said chamber, a sensing chamber having an inlet and being movably mounted within said chamber to be located beneath the normal liquid level thereof, means operatively connected to said movably mounted sensing chamber and adapted to move the inlet thereof into registry with a selected one of said inlet conduits on command of the synchronizing means to transfer a sample from a selected flowstream to said sensing chamber.
Claim 14
Independent Claim
114 words
A method for automatically analyzing and controlling the mean particle size and percent solids content of a plurality of slurry flowstreams comprising the steps of: removing a sample from each of the flowstreams; substantially eliminating any entrained gases from each sample; presenting each of the samples in sequence to an automatic analyzer capable of generating an electrical signal which is a function of the mean particle size and the percent solids in the slurry; and transmitting the generated electrical signal in sequence to each of a plurality of recorder-controller devices, each device being associated with one of the flowstreams in synchronism with the presentation of a sample from a respective flowstream to the analyzer.
Claim 15
Independent Claim
114 words
A method for automatically analyzing and controlling the mean particle size and percent solids content of a plurality of slurry flowstreams comprising the steps of: removing a sample from each of the flowstreams; substantially eliminating any entrained gases from each sample; presenting each of the samples in sequence to an automatic analyzer capable of generating an electrical signal which is a function of the mean particle size and the percent solids in the slurry; and transmitting the generated electrical signal in sequence to each of a plurality of recorder-controller devices, each device being associated with one of the flowstreams in synchronism with the presentation of a sample from a respective flowstream to the analyzer.
Claim 16
Independent Claim
131 words
A method for automAtically analyzing and controlling the mean particle size and percent solids content of a plurality of flowstreams of slurry comprising the steps of: removing a sample from each of the flowstreams; substantially eliminating any entrained gases from each sample; simultaneously directing each of the samples to a sample handling means; presenting each of the samples from the sample handling means in sequence to an automatic analyzer capable of generating an electrical signal which is a function of the mean particle size and the percent solids in the slurry; and transmitting the generated electrical signal in sequence to each of a plurality of recorder-controller devices, each device being associated with one of the flowstreams in synchronism with the presentation of a sample from a respective flowstream to the analyzer.
Claim 17
Independent Claim
131 words
A method for automAtically analyzing and controlling the mean particle size and percent solids content of a plurality of flowstreams of slurry comprising the steps of: removing a sample from each of the flowstreams; substantially eliminating any entrained gases from each sample; simultaneously directing each of the samples to a sample handling means; presenting each of the samples from the sample handling means in sequence to an automatic analyzer capable of generating an electrical signal which is a function of the mean particle size and the percent solids in the slurry; and transmitting the generated electrical signal in sequence to each of a plurality of recorder-controller devices, each device being associated with one of the flowstreams in synchronism with the presentation of a sample from a respective flowstream to the analyzer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |