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Titrating apparatus

Assignee: Canadian Patents and Development Ltd
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Filing: 1969-10-07
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Granted: 1971-05-11
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Expires: 1989-10-07
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Abstract

Abstract AN AUTOMATED POTENTIOMETRIC TITRATING APPARATUS FOR SUCCESSIVELY ADDING QUANTITIES OF TITRANT TO A MINERAL SUSPENSION WHEN THE PH RECOVERY IS AT EQUILIBRIUM, COMPRISING ELECTRODES IN THE SUSPENSION AND CONNECTED TO A PH METER AND STRIP CHART RECORDER, A METER RELAY FOR OPERATING A TITRANT ADDING DEVICE, A CAPACITOR FOR OPERATING THE METER RELAY, A PROGRAMMABLE POWER SUPPLY FOR CHARGING THE CAPACITOR, A VARIABLE RESISTANCE COUPLED TO THE RECORDING PEN OF THE STRIP CHART RECORDER FOR OPERATING THE PROGRAMMABLE POWER SUPPLY IN RESPONSE TO CHANGES IN THE PH OF THE SUSPENSION, AND A MOTOR DRIVEN CAM OPERATED MICROSWITCH ASSEMBLY, FOR CONTROLLING THE QUANTITIES OF TITRANT ADDED AND THE RESPONSE OF THE METER RELAY, SO THAT IT IS RESPONSIVE TO THE SYSTEMS INDICATING PH RECOVERY OF SUSPENSION.

Inventors

  • 👤 Louis L Sirois
  • 👤 Albert A Winer
  • 👤 Gordon E Alexander
  • 👤 Arthur P Page

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 21:57
CPC Classifications
G; G01; G01N; G01N31/00; G01N31/16; Y; Y10; Y10T; Y10T436/00; Y10T436/11; Y10T436/115831; Y10T436/116664

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1974-05-10 1974-11-09 1975-05-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-05-10 1978-11-09 1979-05-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-05-10 1982-11-09 1983-05-11 $7700.00 Window Closed / Lapsed

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