Automatic catch apparatus and method

Details Automatic catch apparatus and method Automatic catch apparatus and method

1995-05-24

1996-11-12

Tsay, Frank

Wells

Processes

With indicating, testing, measuring or locating

166385, 166125, E21B 4700, E21B 2301

Patent

active

055730647

ABSTRACT:
An apparatus for use in an oil and gas well bore is disclosed. Generally, the apparatus comprises of a mandrel and a housing slidable on the mandrel. The apparatus will also include an engaging member for engaging the walls of the well bore. A spring disposed about the mandrel urges the mandrel into contact with the engaging member.

REFERENCES:
patent: 3670821 (1972-06-01), Tamplen
patent: 3677346 (1972-07-01), Tamplen
patent: 3797573 (1974-03-01), Crowe
patent: 4139058 (1979-02-01), Gano
patent: 4154298 (1979-05-01), Gano
patent: 4658904 (1987-04-01), Doremus et al.
patent: 5327975 (1994-07-01), Land

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