Abstract: A method of recovering vapors from exhausts or vents of containers of volatile substances comprising the steps of: providing a scrubber for connection to the vapor space of the container to receive a flow of vapors therefrom; providing a reservoir of absorber fluid; cooling the absorber fluid; introducing the cooled absorber fluid into the scrubber for intimate contact with the flow of vapors therethrough; and returning the vapors absorbed by the cooled absorber fluid to the container. The scrubber may include a spray nozzle adapted to spray cooled absorber fluid in a direction generally concurrent with the flow of vapors. Alternate methods of returning absorbed vapors to the container are disclosed.

Abstract: A sound reducing enclosure for a vibratory feeder includes a cylindrical base assembly which may be in one piece, or alternatively in two halves for ease of installation and maintenance of the equipment within the enclosure. The cylindrical base assembly rests upon a base plate comprising two flat half circles of 1/4 inch aluminum with the space between at right angles to the split between the cylinder halves and bounding a square hole for mounting clearance of vibratory feeder bowl equipment. A transparent generally hemispherical dome assembly of 1/4 inch plexiglass is hingedly secured to the top of the cylinder base assembly for trapping sound within the enclosure while allowing observation of the machine operations.