Method of dislodging a stuck drift gage

Details Method of dislodging a stuck drift gage Method of dislodging a stuck drift gage

1996-02-12

1998-06-16

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Miscellaneous

254 29R, E21B 1900

Patent

active

057658064

ABSTRACT:
A drift gauge sticker remover comprises a base, a frame mounted on the base and extending into the pass line of a powered drift gauge rod. The frame has a slot in which is mounted a pin supporting the top ends of a pivoted front plate and a back plate in a manner such that the plates can slidably move within the slot. The back plate is biased by a first spring means and a second spring means holds the front plate at an angle to the pass line in a rest position. An hydraulic cylinder/piston assembly moves the plates away from and toward a casing to be gauged. Each of the plates has an aperture in the pass line, that in the front plate is at an angle to the pass line such that, when the front plate is pivoted toward a vertical position, the edges of the aperture therein grip the drift gauge rod and apply a bending moment thereto to dislodge a stuck drift gauge.

REFERENCES:
patent: 2719695 (1955-10-01), McKee
patent: 3653114 (1972-04-01), Bawden et al.
patent: 4000879 (1977-01-01), Martin et al.
patent: 4434969 (1984-03-01), Von Ruden
patent: 4492274 (1985-01-01), Schosek

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