Pressure activated injection probe

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6604579
APP PUB NO 20030121654A1
SERIAL NO

10037624

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An injection probe assembly is disclosed for injecting material into subsurface formations for making geotechnical improvements. The probe assembly includes a sheath having an upper end for attaching to a mating tool string and a lower end for receiving a solid drive point. The sheath has a reduced diameter injection area which includes an interior space enclosed by a tubular sidewall, a valve seat, and a plurality of injection ports extending through the sidewall through which materials can be injected laterally. A check valve spool is arranged for sliding movement within the interior space for preventing back-flow of material into the interior space. The spool is seated on the valve seat and covers the injection ports in a first position, and is unseated from the valve seat with the injection ports uncovered in a second position. The spool is responsive to pressure changes of the injected materials.

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Patent Owner(s)

Patent OwnerAddress
KEJR INC601 N BROADWAY SALINA KS 67401

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Carlin, Mike B Salina, KS 2 3

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