Fluent material handling – with receiver or receiver coacting mea – Processes – Gas or variation of gaseous condition in receiver
Patent
1993-06-09
1994-05-10
Cusick, Ernest G.
Fluent material handling, with receiver or receiver coacting mea
Processes
Gas or variation of gaseous condition in receiver
141 1, 141 51, 141 65, 141329, 100902, 100104, 29801, 222 835, 222 87, 222 83, B65B 3100, B67B 724
Patent
active
053099567
ABSTRACT:
Aerosol spray cans are positioned one at a time at a workstation by inserting the bottom wall of each can through an appropriately sized centering ring to center the bottom wall relative to an annular seal that engages peripheral portions of the bottom wall to support the can at the workstation. The bottom wall is clamped into sealing engagement with the annular seal by using a lever operated clamping mechanism that is adjustable to accommodate all known standard sizes of aerosol spray cans. The bottom wall is punctured by using a lever operated, rack and pinion driven piercing mechanism that extends a piercing pin through the center opening of the annular seal. Contents that discharge from a pierced can are ducted into a receiving container, a lower portion of which is used to collect liquid contents for environmentally safe disposal. Gaseous contents are drawn out of the upper region of the receiving container and pass through a series of filters to remove environmentally objectionable constituents therefrom before the filtered gas is ducted to a plenum that is maintained at less than atmospheric pressure by a blower that discharges gaseous contents from the plenum for venting to the atmosphere. A flow of ambient air is drawn from the vicinity of the workstation and is ducted into the plenum for discharge so that, if gaseous emissions inadvertently emanate from the vicinity of the workstation, they are quickly entrained in the flow of ambient air and are ducted to the reduced pressure plenum for discharge.
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Burge David A.
Cusick Ernest G.
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