Bore gauge centralizer

Details Bore gauge centralizer Bore gauge centralizer

1997-06-18

1998-12-15

Bennett, G. Bradley

Geometrical instruments

Gauge

Internal

33520, G01B 512

Patent

active

058484795

ABSTRACT:
A bore gauge centralizer comprising a frame having a pair of parallel legs connected by a cross piece. One end of the frame is pivotally mounted to the gauge head so that the legs are generally parallel to the longitudinal axis of the gauge and the ends of the legs pivot in unison away from the head. A spring biases the leg ends away from the head. A roller is rotatably attached to the each leg end. The roller is a truncated solid oval so that a single contact point is made with the bore wall regardless of the position of the frame.

REFERENCES:
patent: 2253803 (1941-08-01), Newberry
patent: 2601496 (1952-06-01), Boat
patent: 2621416 (1952-12-01), Brenneke
patent: 3178828 (1965-04-01), Eisele
patent: 4169317 (1979-10-01), Bone
patent: 4419830 (1983-12-01), Miller
patent: 5379522 (1995-01-01), Jacobs
patent: 5548901 (1996-08-01), Isler
patent: 5640778 (1997-06-01), Shiue et al.

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