Patent ID: 11946737
Assignee: MEWBOURNE OIL COMPANY
Field: Measurement (Instruments)
Classification: CPC G  E  F | IPC E  F  G

Claim 15:
16. A method of determining if an inner diameter of a length of a pipe exceeds a predetermined value, the method comprising: inserting a measuring device comprising an outer housing and a plurality of fingers extending outwardly from the outer housing into a first end of the pipe to be measured with the plurality of fingers in a starting position; moving the measuring device through the length of the pipe from the first end to a second end; observing a position of the plurality of fingers at the second end of the pipe to determine if the plurality of fingers are in the starting position or a failing position; wherein the plurality of fingers are configured to pivot from the starting position to the failing position if the inner diameter of the length of the pipe exceeds the predetermined value as the measuring device moves through the length of the pipe in a forward direction; and wherein the measuring device does not include any electronic components.