Earth working – Tool – standard or connection – Frame-supported blade – scraper – or smoother drawn by vehicle
Patent
1997-12-03
2000-09-19
Pezzuto, Robert E.
Earth working
Tool, standard or connection
Frame-supported blade, scraper, or smoother drawn by vehicle
A01C 508
Patent
active
061197904
ABSTRACT:
The invention relates to an apparatus for layering a layer of material, such as shingle or activated carbon, over a layer of material laid from a hopper. The apparatus comprises an auxiliary body to mount on the hopper and contain the first-mentioned material and a distributing device for distributing the first-mentioned material.
REFERENCES:
patent: 4121646 (1978-10-01), Rikker
patent: 4710054 (1987-12-01), Allen
patent: 4798151 (1989-01-01), Rodrigues, Jr. et al.
patent: 5234128 (1993-08-01), Hill
patent: 5806604 (1998-09-01), Sanders
Pezzuto Robert E.
Thames Water Utilites Limited
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