Water treatment apparatus

• US 3,381,699 A
• Filed: 10/22/1965
• Issued: 05/07/1968
• Est. Priority Date: 10/22/1965
• Status: Expired due to Term

• Current Assignee: Wilson R. Coffman
• Original Assignee: Wilson R. Coffman
• Inventors: Coffman, Wilson R.
• Application Number:
  US04/500,589
• Time in Patent Office: 928 Days
• US Class Current: 137/101.21
• CPC Class Codes: C02F 1/685 Devices for dosing the additives
• CPC Class Codes: Y10T 137/2531 Flow displacement element actuates electrical controller
• CPC Class Codes: Y10T 137/2572 One inflow supplements another
• CPC Class Codes: Y10T 137/86389 Programmer or timer

Claims

1. AN APPARATUS ADAPTED TO INTRODUCE PREDETERMINED VOLUMES OF LIQUID CHEMICAL ADDITIVE INTO A STREAM OF WATER FLOWING THROUGH A MAIN INCLUDING, A WATER METER ARRANGED IN THE MAIN TO MEASURE THE VOLUME OF WATER FLOWING THERETHROUGH, CAM OPERATED SWITCH MEANS DRIVEN BY THE METER AND CONNECTED WITH A POWER SOURCE AND WITH A PAIR OF POWER LINES, SAID SWITCH MEANS SHIFTABLE INTO AND OUT OF CONTACT WITH EACH OF THE POWER LINES FOR EQUAL PERIODS OF TIME, A CUT-OFF SWITCH CONNECTED WITH SAID POWER LINES AND WITH A CLOCK MOTOR, A FIRST CAM DRIVEN BY THE CLOCK MOTOR AT A RATE FASTER THAN THE CAM OPERATED SWITCH MEANS AND ADAPTED TO SHIFT CONTACT IN THE CUT-OFF SWITCH FROM ONE OF THE POWER LINES TO THE OTHER OF SAID POWER LINES AFTER THE CLOCK MOTOR HAS OPERATED A PREDETERMINED PERIOD OF TIME, A SECOND CAM DRIVEN BY THE CLOCK MOTOR EACH TIME ONE OF THE POWER LINES IS CONTACTED AT THE FIRST MENTIONED SWITCH, NORMALLY OPEN SWITCH MEANS CONNECTED WITH THE POWER SOURCE AND WITH A PUMP MOTOR AND RELATED TO THE SECOND CAM, SAID SECOND CAM ADAPTED TO CLOSE THE SWITCH MEANS TO ENERGIZE THE PUMP MOTOR FOR A PREDETERMINED PERIOD OF TIME DURING EACH PERIOD WHEN THE CLOCK MOTOR IS ENERGIZED, AND A PUMP ARRANGED BETWEEN AND CONNECTED WITH THE MAIN AND A CHEMICAL SUPPLY AND DRIVEN BY THE PUMP MOTOR.