Patent ID: 7984768
Filing Date: 2011-07-26
Classification: A01B,A01C

Abstract:
1. A scraper assembly for a disc opener carrying a mount frame and a disc rotatably carried by the mount frame, the disc having a radial outer edge engageable with the ground for forming a furrow therein, comprising: a bracket connected to the mount frame and extending adjacent and across a portion of at least one flat side of the disc; a scraper plate mount pivotably coupled at an upper end thereof to the bracket and having an opposite free end, the scraper plate mount including a first side positioned next to the bracket and an opposite second side positioned next to the one flat side of the disc; a scraper plate adjustably carried on the free end of the scraper plate mount, the scraper plate defining a scraper edge for contacting and scraping the disc, the scraper plate including a furrow engaging region which extends beyond the radial outer edge of the disc along a lower portion thereof such that a furrow formed by the disc is also contacted by at least a portion of the furrow engaging region of the scraper plate to hold the furrow open; and a biasing member positioned between the upper end and the free end of the scraper plate mount on the first side thereof, the biasing member extending between the first side of the scraper plate mount and the bracket and configured to provide a biasing force therebetween, such that the scraper plate mount is pivoted at the upper end thereof so that the scraper edge of the scraper plate is moved against the disc such that the scraper edge maintains a biased contact with the disc even during inward and outward deflection of the disc.