Patent ID: 7428960

Claim:
A mounting sub-assembly adapted for use with a scraper blade rigidly secured to a shaft for scraping and cleaning a conveyor belt, comprising: at least one compression arm ( 802 ) attached to the shaft ( 502 ) that resiliently adjusts a position of the scraper blade ( 814 ) in relation to the conveyor belt ( 504 ) such that the scraper blade ( 814 ) contacts the conveyor belt ( 504 ) and rotates away from the conveyor belt ( 804 ) when the scraper blade ( 814 ) contacts a protrusion on the conveyor belt ( 504 ), said compression arm ( 802 ) comprising a base plate ( 810 ), a thrust collar ( 808 ) mounted to the shaft ( 502 ) for conjoint rotation therewith, a pivoting spindle ( 806 ) having a pivoting shaft, the pivoting spindle ( 806 ) having a first end and a second end, a means for securing the second end of the pivoting spindle ( 806 ) in pivotal communication with the base plate ( 810 ), a biasing member ( 804 ) having a first end releasably secured to the first end of the pivoting spindle ( 806 ) and a second end in communication with the thrust collar ( 808 ), wherein the biasing member ( 804 ) applies a linear biasing force toward and against the thrust collar ( 808 ) and the thrust collar ( 808 ) translates the linear biasing force into a rotational biasing force acting on the shaft ( 502 ) to rotate the rigidly secured scraper blade into scraping engagement with the conveyor belt, the biasing member ( 804 ) having a resilient nature permitting the compression arm ( 802 ) to retract when at least one of seams and debris affixed to the conveyor belt ( 504 ) contact the scraper blade ( 814 ), thereby rotating the shaft ( 502 ) and the scraper blade ( 814 ) away from the conveyor belt ( 504 ), and further permitting the scraper blade ( 814 ) to rotate back towards the conveyor belt ( 504 ) when at least one of seams and debris affixed to the conveyor belt ( 504 ) are no longer in contact with the scraper blade ( 814 ).