Earth working – With drive means for tool or cleaner – Implement with ground support for depth control
Reexamination Certificate
1999-04-28
2001-05-29
Pezzuto, Robert E. (Department: 3671)
Earth working
With drive means for tool or cleaner
Implement with ground support for depth control
C056S016700, C056S364000
Reexamination Certificate
active
06237695
ABSTRACT:
This invention relates to harrowing de thatching or ground stripping apparatus, more particularly, the invention relates to digging, cutting a path in, and pulverizing of earthen materials.
It is an object of the invention to provide a novel ground working apparatus which can has a drum with a plurality of spring teeth mounted at intervals about the drum for engaging the ground and cutting a path in the ground or material.
It is another object of the invention to provide a novel dethatching device which has a hydraulic power driven drum with a plurality of teeth mounted on the drum with a hydraulic reservoir and hydraulic motor mounted on the device fluid for powering the hydraulic motor of the device.
It is a further object of the invention to provide a mobile device with a power driven drum having a plurality of harrow teeth mounted at intervals about the drum with the drum rotating at a selected speed and with the device be adjustable to a selected height to place the drum and teeth at selected height to cut a path in the ground at a selected depth with teeth.
Further objects and advantages of the invention will become apparent as the description proceeds and when taken in conjunction with the accompanying drawings wherein:
REFERENCES:
patent: 2881580 (1959-04-01), Ashton
patent: 2992525 (1961-07-01), Irish
patent: 3512345 (1970-05-01), Smith
patent: 3859777 (1975-01-01), Doering
patent: 5014504 (1991-05-01), Oechsle
patent: 5042243 (1991-08-01), Doering
patent: 5524425 (1996-06-01), Gallazzini
Pierce Kevin J.
Pierce Michael J.
Kleve Robert E.
Pezzuto Robert E.
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