| 摘要 |
<p>Disclosed herein is a dispenser comprising a rectangular housing including interconnected top and bottom walls, opposed front and back walls, opposed first and second end walls, door means in the front wall for providing an access opening which can be opened and closed, a first partition extending in spaced relation to the top wall and between the end walls and between the front and back walls to define an air intake chamber between the first partition and the top wall, valved air inlet means communicating with the air inlet chamber, a second partition extending in spaced relation to the bottom wall and in generally parallel relation to the first partition and between the end walls and between the front and back walls to define an air outlet chamber between the second partition and the bottom wall and to define a central chamber between the first and second partitions, valved air outlet means communicating with the air outlet chamber, aperture means in the first and second partitions for affording air flow from the air inlet chamber, at least one tray member, means on the end walls for horizontally supporting the tray member in the central chamber and for facilitating at least partial withdrawal of the tray member through the front wall access opening, means on the tray member for removably holding a plurality of relatively thin rectangular envelopes which contain a substance to be dispensed and which are arranged in parallel vertical relation to each other to permit air flow past the envelopes from the air inlet chamber to the air outlet chamber, blower means in one of the air inlet (Cont'd) and air outlet chambers for inducing air flow from the air inlet chamber to the central chamber and from the central chamber to the air outlet chamber, and handle means on the housing for facilitating transfer of the housing from one site to another site.</p> |
