Positionable doctor blade

Details Positionable doctor blade Positionable doctor blade

1991-01-14

1992-05-19

Olszewski, Robert P.

Conveyors: power-driven

Conveyor having impinging fluid to feed, shift or discharge...

Having cleaning means

198499, B65G 4500

Patent

active

051139995

ABSTRACT:
An apparatus for scraping material from a moving surface. The scraping apparatus is comprised of a scraping device disposed at an angle in relationship to the moving surface such that the scraping device scrapes material from the surface of the moving surface without binding the moving surface. Additionally, the scraping device is comprised of a positioning device for selectively positioning the scraping device in contact and out of contact with the moving surface. Additionally, the positioning device comprises device for regulating the force of the scraping device on the moving surface. Preferably, the position device is comprised of a pneumatically or hydraulically operated piston.

REFERENCES:
patent: 4189046 (1980-02-01), Ward
patent: 4269301 (1981-05-01), Gibbs
patent: 5007523 (1991-04-01), Morefield
patent: 5007524 (1991-04-01), Morefield

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