Sewer line analyzer probe

• US 4,116,061 A
• Filed: 06/30/1977
• Issued: 09/26/1978
• Est. Priority Date: 08/08/1975
• Status: Expired due to Term

• Current Assignee: Peter D. Petroff
• Original Assignee: Peter D. Petroff
• Inventors: Petroff, Peter D.
• Primary Examiner(s): Woodiel, Donald O.
• Application Number:
  US05/811,557
• Time in Patent Office: 453 Days
• Field of Search: 235/151.3, 235/151.34, 235/151.35, 73/290 R, 73/299, 73/194 R, 73/212, 73/420, 73/215, 73/302, 73/439
• US Class Current: 73/299
• CPC Class Codes: G01F 1/00 Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow measuring a proportion of the volume flow G01F5/00
• CPC Class Codes: G01F 1/34 by measuring pressure or differential pressure

Abstract

A method and means of determining inflow (undesired pipe drains to a sewer) and infiltration (sewer pipe leakage) into sewer lines by a coordinate measurement of pressure in sewer pipes at several locations, particularly measuring flow during rainfall and for a discrete period thereafter and comparing the results with dry periods.

Claims

1. A device for measuring liquid height in a pipe comprising:

a generally circular loop, said loop being discontinuous at a pair of spaced ends;

a pressure transducer mounted on said loop; and

adjustable connecting means interconnecting said ends and including operating means for adjustably varying the distance between said ends, whereby the effective circumference of said loop is variable, wherein said adjustable connecting means includes operating means comprising an arm of a length in the range of 0.8 to 5 times the diameter of said loop for positioning said loop within a said pipe and selectively operating said operating means, whereby;

said loop would be contracted to enable it to be inserted into a pipe;

would then be expanded to enable it to engage and lock into peripheral engagement with the pipe; and

finally, being removable by contraction of said loop.