Anchor pullout testing apparatus and methods

Details Anchor pullout testing apparatus and methods Anchor pullout testing apparatus and methods

1978-10-02

1980-08-19

Ciarlante, Anthony V.

Measuring and testing

Volumetric content measuring

G01L 100

Patent

active

042177766

ABSTRACT:
An apparatus for testing the minimum pullout strength of a ground anchor for an oil well derrick or other towers (as an antenna) guy line comprises an open ended cylinder connected to an anchor line, a piston positioned in the cylinder having a piston connecting rod extending out of the cylinder open end and connected to a winch, a compression spring around the connecting rod for damping outward movement of the piston from the cylinder, and a shear pin protruding through both the cylinder and the piston so that while applying an increasing load to the piston connecting rod, if the anchor does not move prior to breaking of the shear pin, a safe, satisfactory, and reliable anchor is indicated. A method for forming an anchor pullout test apparatus and a method for testing the pullout strength of an anchor are disclosed.

REFERENCES:
patent: 629290 (1899-07-01), Goodbaudy
patent: 1247249 (1917-11-01), Felcyn
patent: 3033495 (1962-05-01), Sikora
patent: 3036459 (1962-05-01), Kendall
patent: 3738163 (1973-06-01), McEntire
patent: 3747400 (1973-07-01), Finsterwalder
patent: 3942368 (1976-03-01), Hoyt

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