Liquid purification or separation – Filter – Within flow line or flow line connected close casing
Patent
1992-05-11
1994-10-11
Dawson, Robert A.
Liquid purification or separation
Filter
Within flow line or flow line connected close casing
210452, 210477, 210484, 210499, 210501, 422905, 433 92, B01D 2708
Patent
active
053544684
ABSTRACT:
A sanitizing, cleaning and deodorizing unit for evacuation system filter traps of the type used in dental evacuation suction systems comprises a housing bounded by a side wall having openings that provide fluid communication with the ambient atmosphere and a body of sanitizing, cleaning and deodorizing material situated in the interior space of the housing. The material-containing housing is situated in a conventional filter trap comprising a cup-shaped unit comprising a mesh screen bottom wall. As waste material is suctioned into the filter trap, it passes through openings in the side wall of the unit housing into contact with the body of sanitizing, cleaning and deodorizing material which releases upon contact.
REFERENCES:
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patent: 3746033 (1973-07-01), Keiper, III
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patent: 4770632 (1988-09-01), Ryder et al.
patent: 4957629 (1990-09-01), Smith et al.
patent: 5049273 (1991-09-01), Knox
patent: 5094616 (1992-03-01), Levenson
patent: 5169528 (1992-12-01), Karbachsch et al.
Dawson Robert A.
Sultan Dental Products, Inc.
Walker W. L.
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