Patent ID: 8572851
Filing Date: 2013-11-05
Classification: B26B,Y10T

Abstract:
1. A method opening a knife blade that is movable along a rotational path defining a blade plane from a closed position to an open position, comprising steps of: (a) providing a bushing having a central opening and an annular channel extending partially around said bushing and opening to said central opening; (b) inserting a spring into the central opening of the bushing with a first leg of the spring extending through the annular channel; (c) inserting the bushing through a bore in the blade such that the first leg of the spring is in contact with a side surface of said blade; (d) attaching the bushing to a first handle half so that the first leg of the spring retains the blade in a desired position relative to the first handle half; (e) moving the blade to a closed position; (f) rotating the blade from the closed position toward the open position and at an intermediate point in the rotational path of the blade from the closed position toward the open position, transferring the first leg of the spring from the side surface of the blade into a groove in the blade so that said spring drives the blade to the open position.