Pneumatic dispatch system

• US 3,101,183 A
• Filed: 03/20/1962
• Issued: 08/20/1963
• Est. Priority Date: 03/20/1962
• Status: Expired due to Term

• Current Assignee: Walter F. Hunter
• Original Assignee: Walter F. Hunter
• Inventors: Hunter, Walter F.
• Application Number:
  US04/181,517
• Time in Patent Office: 518 Days
• US Class Current: 406/83
• CPC Class Codes: B65G 51/04 Conveying the articles in carriers having a cross-section approximating that of the pipe or tube; Tube mail systems
• CPC Class Codes: B65G 51/08 Controlling or conditioning the operating medium
• CPC Class Codes: B65G 51/20 Braking arrangements

Claims

1. IN AN ELONGATED TRANSPORTATION TUBE, AT LEAST ONE CONTAINER ADAPTED TO FIT IN SAID TUBE AND TO MOVE LONGITUDINALLY THEREOF, AT LEAST ONE ROW OF ROLLERS POSITIONED IN THE LOWER OR UPPER PORTION OF SAID TUBE AND ON WHICH SAID CONTAINER IS ADAPTED TO RIDE DURING MOVEMENT THEREOF ALONG SAID TUBE, A SERIES OF SPACED GATE ASSEMBLIES INTERPOSED IN SAID TUBE, A MOVABLE GATE IN EACH GATE ASSEMBLY, SELECTIVELY CONTROLLED MEANS FOR ADMITTING FLUID UNDER PRESSURE INTO SAID TRANSPORTATION TUBE AT POINTS ADJACENT OPPOSITE SIDES OF EACH OF SAID GATE ASSEMBLIES, SELECTIVELY CONTROLLED FLUID PRESSURE MEANS FOR SELECTIVELY CLOSING AND OPENING SAID GATES, EACH GATE BEING SO ARRANGED AS TO INTERRUPT THE FLOW OF COMPRESSED AIR THROUGH SAID TRANSPORTTION TUBE AT THAT PARTICULAR POINT WHEN THE GATE IS IN CLOSED