B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 46/04 (2006.01) B01D 46/52 (2006.01)
Patent
CA 2193008
A two stage vacuum cleaner filter is disclosed. The filter includes a first stage outer filter extending in a closed circumferential path with a second stage inner filter located in immediate proximity to and within the first stage outer filter. Sealing elements for securing opposite ends of the first stage outer filter and second stage inner filter to each other are provided. The second stage inner filter stops particles that might leak through the first stage outer filter.
Hult David R.
Kolehmainen Donald M.
Young Jeffrey L.
Emerson Electric Co.
Marks & Clerk
LandOfFree
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