Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 6365536 | Method of making bleaching clay A bleaching clay having an enhanced bleaching performance in oils is produced by first beneficiating a raw clay to remove sand and thereafter conditioning and then concentrating the beneficiated clay with a pH modifier and a Lewis acid salt.... | 04/02/2002 |
| 6346286 | Sorptive purification for edible oils Pre-treatment sorbents suitable for sorptive pre-treatment of edible oils prior to bleaching are produced by mixing a clay mineral composition with a dry granular organic acid.... | 02/12/2002 |
| 6093669 | Method for selecting raw material for bleaching clay A process for making a bleaching clay composition useful for purification of oil is disclosed. The process involves controlled acidification of a palygorskite and smectite clay mineral with sulfuric acid. The clay mineral starting material exhibits, in an... | 07/25/2000 |
| 6089190 | Packaging compatible animal litter A cellulose-based, clumpable animal litter features reduced water activity at cost-effective product moisture levels. The composition includes cellulosic granules and clay particles present in an amount up to 40 weight percent, but sufficient to give the ... | 07/18/2000 |
| 6039004 | Cellulosic animal litter product A cellulose-based animal litter product effective in the control of odors generated by animal wastes is disclosed. Selected cellulosic granules containing mineral filler are contacted with a bactericide to produce a bactericide impregnated cellulosic litt... | 03/21/2000 |
| 6020282 | Substantially inert clay product and process for manufacture A substantially dust-free, inert absorbent derived from clay is described. Raw clay having strong surface acidity sites is combined with a metal salt, then heat treated to produce vitrified clay granules suitable as a carrier for labile chemical or biolog... | 02/01/2000 |
| 5975019 | Clumping animal litter A clumping animal litter utilizing the interparticle interaction of a swelling clay, such as sodium bentonite, in combination with a non-swelling clay material. Preferably, sixty percent (60%) by weight, or less, composition of sodium bentonite is used af... | 11/02/1999 |
| 5960743 | Clay litter product for ammonia control in poultry pens A sulfuric acid-containing clay-based litter product useful in the control of ammonia generated by decaying excrement in poorly ventilated poultry brooding houses is provided. Raw clay is contacted with sulfuric acid to produce an acidulated clay which is... | 10/05/1999 |
| 5908500 | Activated clay composition and method High performance acid activated clays suitable for bleaching oil are produced by contacting an intercalating clay mineral with a strong acid in a polar organic liquid.... | 06/01/1999 |
| 5836263 | Clumping animal litter An improved, fast-clumping animal litter which substantially immediately upon wetting with aqueous liquid forms a clump of durable clump strength for removal from the unwetted litter substantially immediately or within hours. The inventive animal litter i... | 11/17/1998 |
| 5783511 | Process for selecting raw material and making a bleaching clay A process for making a bleaching clay composition useful for purification of oil is disclosed. The process of involves controlled acidification of a palygorskite--smectite clay mineral with sulfuric acid.... | 07/21/1998 |
| 5749955 | Clay activation with metal salts High performance activated clays suitable for bleaching oil are produced by mixing a clay mineral with a metal salt that is a Lewis acid. Mixtures of such metal salts can be used as well.... | 05/12/1998 |
| 5427683 | Filtration system with axial flow cartridge An axial flow filtration cartridge, a system, a support assembly, an apparatus, as well as a process are provided for removing particulate matter as well as dissolved heavy metal ions and the like from an aqueous effluent stream. The invention is useful f... | 06/27/1995 |
| 5359961 | Animal litter with galactomannan gum clumping agent and carrageenan gum extender A composition for a clumping animal litter forms agglomerates upon contact with relatively small amounts of an aqueous liquid, such as an animal body fluid, yet rapidly disperses upon disposal in a household plumbing system to produce only non-swelling cl... | 11/01/1994 |
| 5296137 | Filtration system with axial flow cartridge An axial flow filtration cartridge, a system, a support assembly, an apparatus, as well as a process are provided for removing particulate matter as well as dissolved heavy metal ions and the like from an aqueous effluent stream. The invention is useful f... | 03/22/1994 |
| 5196473 | Granules exhibiting reduced dusting The present invention is directed to substantially dust-free granules. The granules are constituted by a normally dusty inorganic solid material and a water-dispersible nonionic vinyl polymer distributed thereon. The vinyl polymer promotes retention of du... | 03/23/1993 |
| 5151211 | Oil bleaching method and composition for same The present invention contemplates a method for treating oils having undesirable color impurities and an oil bleaching composition suitable for use in this method. The method comprises contacting the oil with the oil bleaching composition for a time perio... | 09/29/1992 |
| 5146877 | Particulate absorbent material having controlled bulk density A particulate absorbent material is constituted by discrete clay granules and paper granules, and usually exhibits a bulk density of about 10 lbs/ft3 to about 30 lbs/ft3. The weight ratio of paper granules-to-clay granules is about 0... | 09/15/1992 |
| 5101771 | Animal litter with biodegradable clumping agent The animal litter that forms clumps upon wetting by the animal is constituted by particulate non-swelling clay and an organic clumping agent distributed over individual clay particles in an oleaginous vehicle such as mineral oil. A preferred organic clump... | 04/07/1992 |
| 5094604 | Apparatus for making granular absorbent from fibrous materials An apparatus suitable for making a granular absorbent from cellulosic fibrous material includes a housing which defines an elongated internal cavity, and an inlet and an outlet communicating with the internal cavity. A rotatably driven shaft extends withi... | 03/10/1992 |
| 5004570 | Oil bleaching method and composition for same The present invention contemplates a method for treating oils having undesirable color impurities and an oil bleaching composition suitable for use in this method. The method comprises contacting the oil with the oil bleaching composition for a time perio... | 04/02/1991 |
| 4976977 | Pelleting agent having energy value The present invention contemplates a particulate, free-flowing pelleting agent with energy value. The pelleting agent is constituted by discrete, free-flowing absorbent clay agglomerates that include clay and molasses in a clay-to-molasses weight ratio of... | 12/11/1990 |
| 4775473 | Packaged absorbent An absorbent article suitable for absorption of aqueous as well as oleaginous liquids such as metal cutting fluids, hydraulic fluids, oils and the like is disclosed. The absorbent article is a spunlaced material sleeve closed at both ends and filled with ... | 10/04/1988 |
| 4622920 | Animal litter Animal litter composition which includes a particulate, absorbent inorganic solid material and an odor-abating amount of p-hydroxybenzoate (paraben) distributed on the solid material is disclosed.... | 11/18/1986 |
| 4459368 | Particulate sorbing and deodorizing mixtures containing synthetic and clay sorbents A particulate, water and oil sorbing composition is disclosed. The composition contains sorbent fuller's earth clay particles and sorbent synthetic particles, e.g. calcium sulfate dihydrate-containing granules, in a weight ratio of about 0.5:9.5 to about ... | 07/10/1984 |
| 4264543 | Process for manufacturing synthetic gypsum absorbent granules Synthetic absorbent granules of calcium sulfate dihydrate are manufactured by a process which utilizes a commercial type of dry powdered gypsum plaster or calcium sulfate hemihydrate, mixes the plaster with water in an inclined rotating disc machine to ca... | 04/28/1981 |
| 4187803 | Process for pelletizing sorptive mineral fines A process for pelletizing sorptive mineral "fines" which includes adding sufficient moisture to the particles of sorptive material to occupy the pore space therein, compactly forming the moistened mineral in a pelletizing machine, then removing the pore m... | 02/12/1980 |
| 4183763 | Gypsum-based granules and method of production Calcium sulfate hemihydrate is processed into agglomerates such as granules and/or macrogranules by addition of an aqueous binder to a fluidized charge of calcium sulfate hemihydrate particles. The hemihydrate particles are agglomerated to a predetermined... | 01/15/1980 |
| 4163674 | Process for making a synthetic liquid absorbent and products resulting therefrom A method for producing synthetic liquid absorbent granules to serve the same purposes as granules made from naturally occurring sorptive minerals such as absorbent clays. Water is mixed with powdered gypsum plaster in mixing apparatus and a paste or slurr... | 08/07/1979 |
| 4036928 | Process for pelletizing sorptive mineral fines A process for pelletizing sorptive mineral "fines" which includes adding sufficient moisture to the particles of sorptive material to occupy the pore space therein, compactly forming the moistened mineral in a pelletizing machine, then removing the pore m... | 07/19/1977 |
