Control system for a pipeline having a plurality of branches

• US 3,219,050 A
• Filed: 03/02/1964
• Issued: 11/23/1965
• Est. Priority Date: 12/22/1961
• Status: Expired due to Term

• Current Assignee: Ernest A. Ericson
• Original Assignee: Ernest A. Ericson
• Inventors: Ericson, Ernest A.
• Application Number:
  US04/348,595
• Time in Patent Office: 631 Days
• US Class Current: 137/112
• CPC Class Codes: F16L 2101/40 Separating transported fluids
• CPC Class Codes: F16L 55/00 Devices or appurtenances for use in, or in connection with, pipes or pipe systems the preceding groups and groups F16L57/00, F16L59/00 take precedence; repairing or joining pipes on or under water F16L1/26; nozzles B05B; cleaning of pipes B08B9/02; arrangements of draining devices for water main or service pipe systems E03B7/08; devices for preventing bursting of water pipes by freezing E03B7/10; draining devices for hydrants E03B9/14; for domestic plumbing installations E03C1/00; steam traps for draining of liquids from enclosures containing gases or vapours F16T; arrangements for sealing leaky tubes or conduits of heat-exchangers F28F11/00
• CPC Class Codes: F17D 3/08 the different products being separated by "go-devils", e.g. spheres cleaning devices moved along inside a pipe-lines by fluid pressure B08B9/04; pigs or moles per se, their launching and detection F16L55/26
• CPC Class Codes: Y10T 137/2567 Alternate or successive inflows
• CPC Class Codes: Y10T 137/2698 Electrical control
• CPC Class Codes: Y10T 137/4891 With holder for solid, flaky or pulverized material to be dissolved or entrained
• CPC Class Codes: Y10T 137/8242 Electrical

Claims

3. A SYSTEM COMPRISING A PIPELINE THROUGH WHICH A PIG MAY BE PASSED AND A PLURALITY OF PIPES COMMUNICATING WITH SAID PIPELINE, EACH OF SAID PIPE BEING CONTROLLED BY A SOLENOID VALVE INTERPOSED THEREIN, A PLURALITY OF CIRCUIT MEANS, ONE FOR EACH SOLENOID VALVE, EACH CIRCUIT MEANS COMPRISING FIRST, SECOND AND THIRD ELECTRICALLY CONDUCTIVE MEANS, FIRST SWITCH MEANS FOR SELECTIVELY CONNECTING EITHER OF SAID SECOND AND SAID THIRD ELECTICALLY CONDUCTIVE MEANS TO SAID FIRST ELECTRICALLY CONDUCTIVE MEANS, FOURTH ELECTRICALLY CONDUCTIVE MEANS FOR ENERGIZING A SINGLE SOLENOID VALVE, SECOND SWITCH MEANS FOR SELECTIVELY CONNECTING EITHER OF SAID SECOND AND SAID THIRD ELECTRICALLY CONDUCTIVE MEANS TO SAID FOURTH ELECTRICALLY CONDUCTIVE MEANS, THIRD SWITCH MEANS INTERPOSED IN SAID FOURTH ELECTRICALLY CONDUCTIVE MEANS FOR SELECTIVELY INTERRUPTING THE FLOW OF ELECTRICALLY THERETHROUGH, SENSING MEANS FOR SENSING THE PASSAGE OF A PIG PAST A PREDETERMINED POINT IN SAID PIPELINE, AND MEANS RESPONSIVE TO SAID SENSING MEANS FOR MOVING ALL OF SAID FIRST SWITCH MEANS IN CONCERT FROM A FIRST POSITION CONNECTING SAID FIRST AND SAID SECOND ELECTRICALLY CONDUCTIVE MEANS TO A SECOND POSITION CONNECTING SAID FIRST AND SAID THIRD ELECTRICALLY CONDUCTIVE MEANS.