Sub-surface trenching and backfill apparatus
First Claim
1. A soil sub-surface trenching and backfill apparatus adapted to form a soil sub-surface trench and deliver thereto a ribbon deposit of an aggregate material backfill to form a downwardly extending curtain thereof below the soil surface level, said soil sub-surface trenching and backfill apparatus comprising in combination a self-propelled prime mover provided with a control and a vibratory drive attachment assembled thereto, an aggregate material backfill feed hopper assembled to said prime mover and adapted to receive and dispense said aggregate material backfill by means of a flexible centerless auger assembly, a trenching blade detachably assembled to said vibratory drive attachment and having an elevation and lowering means to raise and lower said trenching blade above and below said surface level, a blade-trailing aggregate material backfill feed chute detachably connected pivotally to said trenching blade to receive said aggregate material backfill dispensed thereto by said flexible centerless auger, and a spring biased foot valve activating assembly connected centrally intermediate vertically to the trailing end of said blade trailing aggregate material backfill feed chute being adapted to deliver said aggregate material backfill in said ribbon deposit therefrom in backfill to said soil sub-surface trench.
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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.
30 Citations
18 Claims
- 1. A soil sub-surface trenching and backfill apparatus adapted to form a soil sub-surface trench and deliver thereto a ribbon deposit of an aggregate material backfill to form a downwardly extending curtain thereof below the soil surface level, said soil sub-surface trenching and backfill apparatus comprising in combination a self-propelled prime mover provided with a control and a vibratory drive attachment assembled thereto, an aggregate material backfill feed hopper assembled to said prime mover and adapted to receive and dispense said aggregate material backfill by means of a flexible centerless auger assembly, a trenching blade detachably assembled to said vibratory drive attachment and having an elevation and lowering means to raise and lower said trenching blade above and below said surface level, a blade-trailing aggregate material backfill feed chute detachably connected pivotally to said trenching blade to receive said aggregate material backfill dispensed thereto by said flexible centerless auger, and a spring biased foot valve activating assembly connected centrally intermediate vertically to the trailing end of said blade trailing aggregate material backfill feed chute being adapted to deliver said aggregate material backfill in said ribbon deposit therefrom in backfill to said soil sub-surface trench.
Specification