Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...
Patent
1996-10-01
1998-06-16
Graysay, Tamara L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
By means advancing along terrain and guiding pipe or cable...
404108, 405179, 405180, 405182, E01C 1912, E02F 510
Patent
active
057659664
ABSTRACT:
A soil sub-surface trenching apparatus adapted to deliver a ribbon deposit of an aggregate material to form a downwardly extending curtain thereof below the soil surface level and thereby provide a soil conditioning method for accomplishing a wide range of subsoil characteristic modifications, being as varied as surface level drainage enhancement with the use of a porous aggregate material in recreational and agricultural applications and the like to that of soil sub-surface stabilization improvement with the use of a solidifying aggregate material for surface level vehicular parking applications and the like.
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Cambridge Sportsturf Drainage, 4-Page Brochure with 2-Page "Instant Retrofit" and Super Retrofit insert, and 2-Page Stadium and Super Stadium insert.
Peterson Bruce A.
White Thomas B.
Graysay Tamara L.
Learned Jr. Samuel M.
Mayo Tara L.
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