Filter cage for wet/dry vacuums
First Claim
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1. A filter cage assembly, comprising:
- a longitudinal axis;
an open bottom and a spaced apart, substantially parallel top surface;
at least one circumferential rib circumscribing the cage and being oriented substantially perpendicular to the longitudinal axis;
at least one longitudinal rib being oriented substantially parallel to the longitudinal axis, wherein the circumferential ribs and the longitudinal ribs form a plurality of openings in the cage; and
a projection extending outward from the top surface and along the longitudinal axis of the filter cage, wherein the stem comprises a head portion and a neck region intermediate between the top surface of the cage and the head portion, the head portion having multiple differently shaped sections.
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Abstract
Vacuum cleaner filters, in particular replaceable vacuum cleaner filters suitable for both dry and wet/dry type vacuum cleaners are disclosed, as well as systems incorporating the use of such filters and methods for their use. The filters include a plurality of adjacently positioned pleats arranged in a closed circumferential, cylindrically-shaped path, a top end cap having a central orifice capable of constricting a post on a vacuum filter cage, and optionally a molded end ring oppositely-spaced from the top end cap for engagement with the motor housing of a vacuum cleaner.
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Citations
20 Claims
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1. A filter cage assembly, comprising:
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a longitudinal axis; an open bottom and a spaced apart, substantially parallel top surface; at least one circumferential rib circumscribing the cage and being oriented substantially perpendicular to the longitudinal axis; at least one longitudinal rib being oriented substantially parallel to the longitudinal axis, wherein the circumferential ribs and the longitudinal ribs form a plurality of openings in the cage; and a projection extending outward from the top surface and along the longitudinal axis of the filter cage, wherein the stem comprises a head portion and a neck region intermediate between the top surface of the cage and the head portion, the head portion having multiple differently shaped sections. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17)
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15. A system for vacuuming materials, the system comprising:
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a wet and dry vacuum cleaner; and a filter cage to support a filter, the filter cage coupled to the vacuum cleaner and comprising; a longitudinal axis; an open bottom and a spaced apart, substantially parallel top surface; one or more circumferential ribs circumscribing the cage and being oriented substantially perpendicular to the longitudinal axis; one or more longitudinally angled rib members formed at an angle relative to the longitudinal axis of the filter cage, wherein the circumferential ribs and the longitudinal ribs form a plurality of openings in the cage; and a projection extending outward from the top surface and along the longitudinal axis of the filter cage, wherein the stem comprises a head portion and a neck region intermediate between the top surface of the cage and the head portion, the head portion having at least two differently shaped sections. - View Dependent Claims (16, 18, 19, 20)
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Specification