Apparatus for digging surface trenches in the ground

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4799320
SERIAL NO

07161403

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An elongated rigid bar is arranged to be secured at one of its ends to a power unit and is enclosed through most of its length in a rigid housing. Longitudinal passageways are provided interiorly of the housing for receiving a cross link drive chain trained over a sprocket on the power unit and on a cross shaft supported at a free end of the housing. The cross shaft supports digging units. A ground engaging support wheel is attached to the housing adjacent its free end. The housing has a semi-flexible guard mounted on it adjacent the digging units.

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Patent Owner(s)

  • Assignment data not available. Check PTO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Steele, Robert W 1185 Hamilton Heights, Corvallis, MT 59828 3 29
West, Raymond M 2807 NE. Brazee, Portland, OR 97212 1 2

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ERIK WILHELM SUNDSTROM (1)
* 4506444 Chain saw bar 8 1983
 
DEERE & COMPANY (1)
* 4553950 Flip-up shield assembly for tractor power take-off 8 1985
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (3)
7819345 Method and system for fluid transmission along significant distances 2 2008
7942350 Method and system for fluid transmission along significant distances 0 2010
* 2010/0288,366 Method and system for fluid transmission along significant distances 0 2010
* Cited By Examiner