Apparatus for sensing a distended location on a drill pipe

Details Apparatus for sensing a distended location on a drill pipe Apparatus for sensing a distended location on a drill pipe

1979-01-12

1982-04-27

Truhe, J. V.

Electricity: circuit makers and breakers

Special application

Stationary feeler detects transient object

200 47, 294104, 166 66, H01H 316, H01H 2128, B25B 104

Patent

active

043272614

ABSTRACT:
A method and apparatus for sensing a drill pipe joint is characterized by an arm pivotally moveable with respect to a drill pipe from a first, normal, position. The arm deflects a predetermined angular distance from the normal position when it comes into contact with a predetermined distended location on a drill pipe. An electrical signal is generated by a signal arrangement associated with the arm to indicate that the predetermined distended location is reached.

REFERENCES:
patent: 2459499 (1949-01-01), Castel
patent: 3219770 (1965-11-01), Chasar
patent: 3546954 (1970-12-01), Ustin
patent: 3561811 (1971-02-01), Turner, Jr.

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