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US 5,925,241 AGranted
Floor drain odor control device
AssigneeCalgon Carbon Corporation
InventorsWilliam J. Aldridge, Darcy A. Kadilak, James P. Markowitz
Life of this patent
Estimating the term…
Abstract
A removable floor drain odor control device which fits into standard floor drains of various sizes and acts to reduce or eliminate odors emitted from floor drains through use of a washable and regenerable carbon-based adsorbent. The preferred carbon-based adsorbents is a catalytically-active carbonaceous char, with the Centaur.TM. carbon being most preferred.
Claims9
A floor drain odor control device for removable insertion into the surface region of a floor drain, said device comprised of:
- a. a housing with openings therein and which covers the entire opening of the floor drain so that all gases and aqueous solutions passing through the floor drain also pass through the internal area of said housing;
- and
- b. a washable and regenerable carbon-based adsorbent located within said housing, said adsorbent having its odor-reducing capacity regenerated through washing by and contact with aqueous solutions passing through the floor drain.
Dependencies are inferred from the claim text.