초록 ▼

Waste receptacles for use by animals, such as laboratory animals and household pets, are provided with an odor barrier of lightweight, non-absorbent, non-water-wettable, granular material, such as paraffin wax coated corn cob granules. The buoyant, non-absorbent, lightweight granular material is als

Waste receptacles for use by animals, such as laboratory animals and household pets, are provided with an odor barrier of lightweight, non-absorbent, non-water-wettable, granular material, such as paraffin wax coated corn cob granules. The buoyant, non-absorbent, lightweight granular material is also useful as an odor barrier in liquid-containing portable human toilets and generally as an odor barrier for pools or sumps or open containers of odoriferous materials, such as aqueous offal wastes, aqueous waste from food processing plants and odoriferous wastes from other sources, such as industial sources, e.g., paper mills, chemical plants, manufacturing plants and the like. The non-absorbent granular material in animal toilet applications is conveniently retained on a foraminous tray which, in turn, is mounted on a collecting tray for collection of liquid waste percolating downwardly from the granular material into which the liquid waste was originally deposited.

대표청구항 ▼

A device for receiving small animal waste comprising (a) a foraminous tray; (b) means vertically attached or fitted about the perimeter of said foraminous tray; (c) a layer of substantially non-absorbent buoyant hydrophobic, non-water wettable granular material substantially uniformly dispersed on t

A device for receiving small animal waste comprising (a) a foraminous tray; (b) means vertically attached or fitted about the perimeter of said foraminous tray; (c) a layer of substantially non-absorbent buoyant hydrophobic, non-water wettable granular material substantially uniformly dispersed on the tray to form an odor barrier, said hydrophobic, non-water wettable granular material consisting of buoyant granular material treated with a hydrophobic, non-water wettable substance, such as paraffin wax, so as to coat said granular material, to provide said granular material with a hydrophobic, non-water wettable coating thereon, said granular material being of sufficient size to be retained on the tray, and (d) collecting means positioned beneath and supporting the tray for receiving liquid waste material deposited in said granular material.