Flow blade operating system

Details Flow blade operating system Flow blade operating system

1997-02-12

1999-07-13

Novosad, Christopher J.

Excavating

Snow or ice removing or grooming by portable device

Vehicle mount with obstacle responsive trip, or yieldable tool

1722605, 172265, 172261, E01H 504

Patent

active

059210109

ABSTRACT:
A plow blade operating system having a plow or scraper is configured to quickly and retractably overcome obstacles that are encountered during plowing, scraping, and leveling activities without the need to recharge or reset the system pressure after the obstacles have been passed and which continually biases the plow or scraper downward against the road surface such that the plow or scraper will properly remove snow, sand, gravel, etc . . . from any dips or depressions in the road.

REFERENCES:
patent: 3706144 (1972-12-01), Miceli
patent: 3893518 (1975-07-01), Farrell
patent: 4031966 (1977-06-01), Farrell
patent: 4074448 (1978-02-01), Niemela
patent: 4320589 (1982-03-01), Pelazza
patent: 5265356 (1993-11-01), Winter
patent: 5596823 (1997-01-01), Clasen et al.
patent: 5697172 (1997-12-01), Verseef

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