Flow tubes

• US 3,196,680 A
• Filed: 01/03/1962
• Issued: 07/27/1965
• Est. Priority Date: 01/03/1962
• Status: Expired due to Term

• Current Assignee: John R. Curran
• Original Assignee: John R. Curran
• Inventors: Curran, John R.
• Application Number:
  US04/163,984
• Time in Patent Office: 1,301 Days
• US Class Current: 73/861.52
• CPC Class Codes: G01F 1/44 Venturi tubes

Claims

1. FLOW MEASURING APPARATUS COMPRISING A CONDUIT, AN OBSTRUCTION MOUNTED IN SAID CONDUIT AND SPACED FROM THE WALLS OF SAID CONDUIT AND DEFINING A FLUID PASSAGE WITH SAID WALLS, AND PRESSURE-SENSING MEANS FOR SENSING PRESSURES IN SAID PASSAGE, SAID CONDUIT COMPRISING TWO PIPE SECTIONS, MEANS FOR SECURING SAID PIPE SECTIONS IN ALIGNMENT WITH EACH OTHER, ONE OF SAID PIPE SECTIONS HAVING A WEB MEMBER EXTENDING INWARDLY THEREOF, AT LEAST A PORTION OF SAID FLUID-OBSTRUCTING BODY BEING MOUNTED ON SAID WEB WITH A MAJOR PORTION THEREOF EXTENDING INTO THE OTHER PIPE SECTION, SAID WEB MEMBER HAVING TWO PRESSURE PORTS, ONE OF SAID PRESSURE PORTS BEING IN COMMUNICATION WITH A CONDUIT IN SAID WEB MEMBER WHICH TERMINATES CENTRALLY AT THE UPSTREAM END OF SAID OBSTRUCTION, THE OTHER OF SAID PORTS BEING IN COMMUNICATION WITH A CONDUIT IN SAID WEB MEMBER WHICH TERMINATES AT THE WALL OF SAID OTHER PIPE SECTION AND ADJACENT TO SAID OBSTRUCTION.