Title: Rotary, hand-held apparatus for performing various soil working operations

Abstract: A portable, hand-held apparatus or implement employing various interchangeable soil working assemblies, wherein the latter rotate about an axis oriented substantially normal to the soil surface, i.e., the assembly rotates in a horizontal plane parallel to the soil surface. The soil working assemblies selectively include soil engaging tine, auger, drill, etc., members which depend via integral support bases from a central guide rod. The guide rod extends along the axis of rotation of the soil working assembly, wherein the tip thereof engages the soil prior to contact therewith by the rest of the assembly. The apparatus contemplates various power source configurations, mutually interchangeable with the various soil working assemblies, dependent upon the operation to be performed, the existing soil conditions, etc. Thus the apparatus may include manual, electrical, gas, etc., power sources and may employ cultivating, mulching, weeding, boring, etc., assemblies.

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Inventors: Schneider, Fred A. (Redwood City, CA, US)

Application Number: 849088
Filing Date: 1977-11-07
Publication_date: 1980-07-22
Assignee:
Primary Class(es): 172/25 172/41, 403/307, 403/343
Other Classes:
US Patent Ref:

264138	Sep, 1882	Colvin	172/25.
643165	Feb, 1900	Schumacher	172/25.
1064790	Jun, 1913	Tucker	172/25.
2622498	Dec, 1952	Wharton	172/25.
2888084	May, 1959	Trecker	172/41.
3059704	Oct, 1962	Kasatkin	172/125.
3129771	Apr, 1964	Lidstone	172/25.

Other Refs: 1800229160978217405

May, 1970	DE
Jun, 1933	CH
Feb, 1942	CH

Primary Examiner: Stouffer, Richard T.
Assistant Examiner:
Attorney: