Liquid collecting apparatus and a valve therefor

• US 3,190,497 A
• Filed: 05/28/1962
• Issued: 06/22/1965
• Est. Priority Date: 05/28/1962
• Status: Expired due to Term

• Current Assignee: Warner Lambert Technologies Inc (Pfizer Inc.)
• Original Assignee: Erik W. Anthon
• Inventors: Anthon, Erik W.
• Application Number:
  US04/198,112
• Time in Patent Office: 1,121 Days
• US Class Current: 222/64
• CPC Class Codes: B01L 3/0203 Burettes, i.e. for withdrawing and redistributing liquids through different conduits
• CPC Class Codes: G05D 7/012 the sensing element being deformable and acting as a valve

Claims

1. A LIQUID COLLECTING AND DISPENSING APPARATUS CAPABLE OF RECEIVING AND DELIVERING A FIXED VOLUME OF LIQUID, COMPRISING A COLLECTING CONTAINER FOR RECEIVING AND DISCHARGING LIQUID, A VALVE UNIT CONTAINING A PAIR OF VALVES WITH EACH VALVE DISPOSED AT OPPOSITE ENDS OF THE CONTAINER AND A MOVABLE MEMBER DIRECTLY OPERATIVELY CONNECTED TO BOTH OF SAID VALVES TO OPEN ONE VALVE AND SIMULTANEOUSLY CLOSE THE OTHER VALVE, AND ACTUATING MEANS RESPONSIVE TO A FIXED PREDETERMINED VOLUME OF LIQUID IN THE CONTAINER FOR MOVING SAID MOVABLE MEMBER AND OPERATING THE VALVE UNIT, EACH OF SAID VALVES COMPRISING A PLASTIC TUBE HAVING A PINCHED AREA AND HOLDING MEANS FOR HOLDING THE TUBE AT AN ANGLE ON EACH SIDE OF SAID PINCHED