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US 4,400,113 AGranted
Friction rock stabilizer and a method of isolating the same from a bore surface
AssigneeIngersol-Rand Company
InventorsWalter M. Chaiko, John A. Larson
Life of this patent
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AssigneeIngersol-Rand Company
InventorsWalter M. Chaiko, John A. Larson
Estimating the term…
The friction rock stabilizer comprises an elongate element for insertion into an earth structure bore, for stabilizing the earth structure, which has a sheath rendering the stabilizer impervious to chemical attack and, hence, corrosion-resistant. The bore surface isolating method, in an embodiment thereof, comprises interposing a protective or isolating sleeve or lining between the stabilizer and the earth structure bore. The protective or isolating lining provides two benefits: it facilitates movement of the stabilizer into frictional engagement with the bore, by isolating the stabilizer from the rough surface of the bore wall, and also provides a corrosion-resistant sheath to protect the stabilizer, in the bore, from alkaline or acidic mine water, corrosive minerals, and the like.
A method of isolating the outer surface of a friction rock stabilizer, in a closed-end earth structure bore, from the surface of the bore, comprising the step of:
A friction rock stabilizer, for stabilizing an earth structure, comprising:
Dependencies are inferred from the claim text.