System and method for depositing particulate matter in absorbent cores
First Claim
18. An apparatus for depositing particulate matter into a supply of fibrous material moving in a machine direction comprising:
- a feed tray comprising a pan having an outlet positioned above the supply of fibrous material and a gate disposed above and spaced apart from the pan, located proximal to the outlet and dividing the pan into upstream and downstream portions;
a motor coupled to the feed tray for vibrating the feed tray;
wherein when the motor vibrates the feed tray particulate matter in the feed tray flows beneath the gate and is deposited onto the supply of fibrous material; and
wherein when the motor does not vibrate the feed tray particulate matter in the feed tray is substantially contained in the upstream portion of the pan and substantially no particulate matter is deposited onto the supply of fibrous material.
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Accused Products
Abstract
An apparatus and method for depositing particulate matter into a supply of fibrous material are disclosed. The apparatus has a feed tray having an outlet positioned above a moving supply of fibrous material. A motor is coupled to the feed tray for vibrating the feed tray. When the motor vibrates the feed tray particulate matter in the feed tray is deposited onto the supply of fibrous material, and when the motor does not vibrate the feed tray substantially no particulate matter in the feed tray is deposited onto the supply of fibrous material. The feed tray may have a gate spaced above the pan, behind which particulate matter is held when the motor is not vibrating.
121 Citations
56 Claims
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18. An apparatus for depositing particulate matter into a supply of fibrous material moving in a machine direction comprising:
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a feed tray comprising a pan having an outlet positioned above the supply of fibrous material and a gate disposed above and spaced apart from the pan, located proximal to the outlet and dividing the pan into upstream and downstream portions;
a motor coupled to the feed tray for vibrating the feed tray;
wherein when the motor vibrates the feed tray particulate matter in the feed tray flows beneath the gate and is deposited onto the supply of fibrous material; and
wherein when the motor does not vibrate the feed tray particulate matter in the feed tray is substantially contained in the upstream portion of the pan and substantially no particulate matter is deposited onto the supply of fibrous material. - View Dependent Claims (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 51, 52, 53, 54)
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31-1. The apparatus of claim 18, wherein the active width of the feed tray is about 3 inches to about 10 inches.
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31-2. The apparatus of claim 18, wherein the active width of the feed tray is about 3.75 inches to about 4.00 inches.
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32. A method for depositing particulate matter into a supply of fibrous material moving in a machine direction comprising:
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providing a feed tray having an outlet positioned above the supply of fibrous material;
disposing particulate matter into the feed tray;
arranging the feed tray such that the particulate matter does not flow out of the feed tray when the feed tray is not moving; and
vibrating the feed tray to cause the particulate matter to flow out of the feed tray and onto the supply of fibrous material. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 55, 56)
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Specification