Apparatus for flexibly restraining service loops in an oil...

Details Apparatus for flexibly restraining service loops in an oil... Apparatus for flexibly restraining service loops in an oil...

2011-04-05

2011-04-05

Wright, Giovanna C (Department: 3672)

Wells

Above ground apparatus

C166S077100, C175S207000

Reexamination Certificate

active

07918270

ABSTRACT:
An apparatus for flexibly restraining service loops in an oil derrick to prevent entangling of the loops, comprising a plurality of identical apparatus wherein each apparatus is positioned at different longitudinal level to restrain the service loops. Each apparatus is comprised of a plurality of interlocking units, wherein each unit is comprised of a central steel ring which is adhesively bonded to a braid of a service loop penetrating therethrough and exteriorly affixed to first and second interconnecting rings. A first flexible cable and second flexible cable connect the respective first and second interconnecting rings of the units of each apparatus. Therefore, the service loops are flexibly restrained to have a uniform path and bend radius when they travel longitudinally during operation of an oil well drilling machine, which results in reduction of damage of the service loops.

REFERENCES:
patent: 379425 (1888-03-01), Trask
patent: 1409760 (1922-03-01), O'Marr
patent: 4681169 (1987-07-01), Brookbank, III

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