Patent ID: 8215685
Filing Date: 2012-07-10
Classification: E05B,Y10S,Y10T

Abstract:
1. A biasing apparatus for returning a rotatably-mounted member having a single radially protruding operator to a neutral position, said apparatus comprising: a slide arm assembly receiving the radially protruding operator, said slide arm assembly comprising: a first arm having a first protruding end and second protruding end, and a second arm having a first protruding end and second protruding end, said first arm and second arm being cooperatively interlocked such that said first protruding end of said second arm is slideably captive between the first and second protruding ends of said first arm and the second protruding end of said first arm is slideably captive between said first and second protruding ends of said second arm, said slide arm assembly receiving said radially protruding operator between said second protruding end of said first arm and said first protruding end of said second arm; a first spring engaged between said first protruding end of said first arm and said first protruding end of said second arm; a second spring engaged between said second protruding end of said first arm and said second protruding end of said second arm; wherein by rotation of said rotatably-mounted member in a first direction, said radially protruding operator is engaged only with said first protruding end of said second arm causing said second arm to slide relative to the first arm that is held stationary, thereby simultaneously compressing said first and second springs and by rotation of said rotatably-mounted member in a second direction, said radially protruding operator is engaged only with said second protruding end of said first arm causing said first arm to slide relative to the second arm that is held stationary, thereby simultaneously compressing said first and second springs.