Vacuum cleaner filter bag collar arrangement
AssigneeThe Hoover Company
InventorJohn A. Leonatti
Life of this patent
Estimating the term…
Abstract
An air filter bag is disclosed for use in vacuum cleaners. The filter bag includes a plastic collar having an annular rim for retaining the collar on a flanged inlet air duct and for establishing an air seal with the duct. The collar also includes an annular sealing lip spaced radially inward of the rim which engages a peripheral surface of the air duct thereby providing a dual sealing arrangement. In order to facilitate removal of the filter bag from the duct, the collar is provided with a tab portion integrally attached to the rim.
Claims11
A vacuum cleaner filter bag having a filter body of air-pervious material with an opening therein for admitting dirt laden air into an interior portion thereof and a plastic collar specially adapted for use with a flanged air duct, said filter bag further comprising:
- (a) said plastic collar having a generally circular shaped aperture therethrough communicating with the opening in the filter body;
- (b) said plastic collar further including a base secured to the filter body and extending radially outwardly from the filter body opening with an outer periphery thereof terminating in an annular peripheral skirt;
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- (c) said annular peripheral skirt extending both axially in a direction away from the filter body and inwardly toward the axis of the filter body opening for cooperation with a flanged air duct for retention and sealing purposes.
A vacuum cleaner filter bag having a filter body of air-pervious material with an opening therein for admitting dirt laden air into an interior portion thereof and a plastic collar specially adapted for use with a flanged air duct, said filter bag further comprising:
- (a) said plastic collar having a generally circular shaped aperture therethrough communicating with the opening in the filter body;
- (b) said plastic collar further including a base secured to the filter body and extending radially outwardly from the bag opening with an outer periphery thereof terminating in an annular peripheral skirt;
- (c) said annular peripheral skirt extending both axially in a direction away from the filter body and inwardly toward the axis of the filter body opening for cooperation with a flanged air duct for retention purposes;
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- (d) an inner periphery of said base terminating in an annular sealing lip extending axially of the filter body opening and spaced radially inward of the annular peripheral skirt and concentric with the axis of the filter body opening for cooperation with an air duct for sealing purposes.
A filter bag for use in a vacuum cleaner wherein the filter bag includes a filter body of air-pervious material with an opening therein for admitting dirt laden air into an interior portion of the filter bag, said filter bag further comprising:
- (a) a plastic collar secured to the filter body and having an aperture therethrough communicating with the opening in the filter body;
- (b) said plastic collar further comprising an outer wall interconnected with an inner wall thereof so as to provide an air inlet, duct-receiving channel therebetween;
- (c) said inner wall extending axially in a direction away from the filter body;
- and
- (d) said outer wall extending both axially in a direction away from the filter body and inwardly toward the axis of the filter bag opening.
Dependencies are inferred from the claim text.