Conveyors: power-driven – Conveyor having impinging fluid to feed – shift or discharge... – Having cleaning means
Patent
1992-04-14
1992-11-10
Dayoan, D. Glenn
Conveyors: power-driven
Conveyor having impinging fluid to feed, shift or discharge...
Having cleaning means
152565, B65G 4500
Patent
active
051616696
ABSTRACT:
An elongated spring member such as a leaf spring which is normally flat in a relaxed state, is a bowed by compression between opposite ends and pressed into surface contact with a endless conveyor belt to scrape the belt during belt movement under considerable pressure such that the central portion of the spring member flattens against the belt under self-bias to maintain an edge of the spring member in intimate contact with the moving conveyor belt for scraping of debris clinging to the surface thereof. The spring member may have integral loops for added resilience to permit the central portion of the spring member to ride over lumps on the belt which are not dislodged during belt movement over the scraper. One or more elongated spring members may be employed in an assembly which is moved towards and away from the belt surface to provide selective contact between the bowed central portion of the elongated spring member and the belt. A flexible block of material which may or may not be resilient, and which imbeds the elongated spring member over the central portion has an edge of the block in contact with the belt and functioning as the scraper with the block conforming to the bowing of the elongated spring member embedded therein.
REFERENCES:
patent: 4349098 (1982-09-01), Veenhof
patent: 4498577 (1985-02-01), Veenhof
patent: 4662507 (1987-05-01), Veenhof
patent: 4696388 (1987-09-01), Stoll
patent: 4703845 (1987-11-01), Veenhof
patent: 4821867 (1989-04-01), Veenhof
patent: 4836356 (1989-06-01), Mukai et al.
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