The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 1996
Filed:
Oct. 27, 1994
William B Sargent, Birmingham, AL (US);
USX Corporation, Pittsburgh, PA (US);
Abstract
A drift gauge rod pushing device 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.