Gas separation – Flexible or collapsible bag type – With flow line coupling means
Patent
1990-10-25
1991-11-12
Spitzer, Robert
Gas separation
Flexible or collapsible bag type
With flow line coupling means
15349, 15351, 55377, 55378, 55DIG2, 55DIG3, B01D 4602
Patent
active
050644556
ABSTRACT:
A disposable dust bag for vacuum cleaners and the like is disclosed which includes a mounting collar adapted to be removably mounted on a vacuum cleaner connector through which dirt-laden air is delivered to the dust bag. The connector has a generally cylindrical outlet end and peripherally spaced projections extending from the outer surface thereof. The collar provides an opening sized to closely fit the outlet through the majority of its peripheral extent and which provides peripherally spaced enlarged portions adapted to clear the projections on the connector when the bag is installed and removed. The collar also provides an inwardly extending elastomeric diaphragm having a centrally located opening substantially smaller than the outlet of the connector. During installation and removal of the bag on the connector, the enlarged portions of the collar opening are aligned with the projections on the connector and the collar is pressed over the connector until it is positioned behind the projections. The collar is then rotated to a mounted or installed position in which it engages the rearward sides of the projections to secure the two members together. The elastomeric diaphragm tightly fits around the projections and forms a lip seal with the connector to prevent leakage of dirt-laden air back along the connector.
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International Search Report for International Application No. PCT/US89/02650.
Page 7 of a "Legend II" Use and Care Guide including front & back covers showing a publication data of 1984.
Sample of Prior Disposable Dust Bag.
Spitzer Robert
The Scott & Fetzer Company
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