Patent ID: 6689416
Filing Date: 2004-02-10
Classification: A61F

Abstract:
A method for depositing particulate matter into a supply of fibrous material at a deposition rate substantially proportionate to a line speed of the supply of fibrous material during a transition in the line speed comprising:determining a first vibratory motion of a vibrator adapted to vibrate a feed tray of a vibratory feeder, the first vibratory motion corresponding to a first deposition rate of particulate matter, wherein the first deposition rate is substantially proportionate to a first line speed of the supply of fibrous material; providing a first signal representative of the first vibratory motion to the vibrator; determining a second vibratory motion of the vibrator corresponding to a second deposition rate of particulate matter for a second line speed of the supply of fibrous material, wherein the second deposition rate is substantially proportionate to the second line speed; and providing a second signal representative of the second vibratory motion to the vibrator.