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5070820 Pet waste disposal device
0160-4120/92 $5.00 + .00 Copyright© 1992 Pergamon Press Ltd.
Environment lntenationai, Vol. 18, pp. I-IX, 1992
Printedin the U.S.A. All fights reserved.
NEW
PATENTS
This section contains abstracts and, where appropriate, illustrations of recently issued United States patents and published patent application filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the PATSEARCH * online database in accordance with interest profiles developed by the Editors. Further information about online patent searching can be obtained from Research on Demand, Inc., 2421 Fourth Street, Ste. C., Berkeley, CA 94710, U.S.A. [Tel. 510-841 1145; Fax 510-841 6311].
5059403 METHOD FOR PRODUCING COPPER SULFATE FROM WASTE COPPER-CONTAINING LIQUID Chung C Chen, assigned to Compeq Manufacturing Co Ltd A method for producing copper sulfate from waste copper-containing liquid including the steps o f recovery of acidic and basic coppercontaining liquid, and neutralization of the liquid to form crystalline copper sulfate, wherein the ratio of acidic to basic copper-containing liquid, temperature, pH value and the concentration of copper ion in the resultant solution of each step is being controlled such that the solid copper sulfate is obtained in high yield and purity and will have a larger particle size, and at the same time, the filtrate will contain copper ion in a concentration below 0.3 ppm before being expelled to the surroundings.
5070820 PET WASTE DISPOSAL DEVICE Fred L G o r m a n A pet waste disposal device in the form of a receptacle or fitting that is generally funnel shaped and provided with a reduced diameter lower end connected to the cleanout fitting conventionally provided for sewer systems and located externally of a residential home or other building with the receptacle including a pivotal closure lid to provide access thereto from any position exteriorly of the building and a water inlet to which a garden hose or other supply pipe is connected with the water inlet including a unique arrangement o f nozzles for flushing and cleaning the interior surface of the receptacle so that pet waste may be picked up from the yard or other areas and deposited into the receptacle without
entering the home or other building. The device may be constructed of metal or plastic and is connected to the cleanout adapter by utilizing conventional plumbing procedures and a control valve is provided for the water inlet to enable selective operation of the flushing operation.
5071765 APPLICATION OF MULTIPLE ENZYME BLEND TO CONTROL INDUSTRIAL SLIME ON EQUIPMENT SURFACES Christopher L Wiatr assigned to Nalco Chemical Company A method of attacking and removing microbial slime in slime covered surfaces and maintaining a slime-free surface as in exposed cooling tower surfaces and in waste water treatment and paper making. This method comprises utilizing an enzyme blend in 2 to 100 parts per million (ppm) of beta-glucanase, alpha-amylase and protease. Such enzyme blends have been found specifically to digest microbial slime and reduce microbial attachment and biofilm. A specific combination of polysaccharide degrading enzymes is a ratio of 2 parts beta-glucanase to 1 alpha-amylase to 1 protease utilized in 2-100 parts per million. Broadly, the alpha-amylase must be at least 1 and the protease may vary from 0.5 to 1 part.
5072106 SOLAR RADIATION QUANTITY DETECTING DEVICE FOR AUTOMOBILE AIRCONDITIONER Takashi Osawa, Konan, Japan assigned to Zexel Corporation A device for detecting the solar radiation quan-
Environment lntenationai, Vol. 18, pp. I-IX, 1992
Printedin the U.S.A. All fights reserved.
NEW
PATENTS
This section contains abstracts and, where appropriate, illustrations of recently issued United States patents and published patent application filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the PATSEARCH * online database in accordance with interest profiles developed by the Editors. Further information about online patent searching can be obtained from Research on Demand, Inc., 2421 Fourth Street, Ste. C., Berkeley, CA 94710, U.S.A. [Tel. 510-841 1145; Fax 510-841 6311].
5059403 METHOD FOR PRODUCING COPPER SULFATE FROM WASTE COPPER-CONTAINING LIQUID Chung C Chen, assigned to Compeq Manufacturing Co Ltd A method for producing copper sulfate from waste copper-containing liquid including the steps o f recovery of acidic and basic coppercontaining liquid, and neutralization of the liquid to form crystalline copper sulfate, wherein the ratio of acidic to basic copper-containing liquid, temperature, pH value and the concentration of copper ion in the resultant solution of each step is being controlled such that the solid copper sulfate is obtained in high yield and purity and will have a larger particle size, and at the same time, the filtrate will contain copper ion in a concentration below 0.3 ppm before being expelled to the surroundings.
5070820 PET WASTE DISPOSAL DEVICE Fred L G o r m a n A pet waste disposal device in the form of a receptacle or fitting that is generally funnel shaped and provided with a reduced diameter lower end connected to the cleanout fitting conventionally provided for sewer systems and located externally of a residential home or other building with the receptacle including a pivotal closure lid to provide access thereto from any position exteriorly of the building and a water inlet to which a garden hose or other supply pipe is connected with the water inlet including a unique arrangement o f nozzles for flushing and cleaning the interior surface of the receptacle so that pet waste may be picked up from the yard or other areas and deposited into the receptacle without
entering the home or other building. The device may be constructed of metal or plastic and is connected to the cleanout adapter by utilizing conventional plumbing procedures and a control valve is provided for the water inlet to enable selective operation of the flushing operation.
5071765 APPLICATION OF MULTIPLE ENZYME BLEND TO CONTROL INDUSTRIAL SLIME ON EQUIPMENT SURFACES Christopher L Wiatr assigned to Nalco Chemical Company A method of attacking and removing microbial slime in slime covered surfaces and maintaining a slime-free surface as in exposed cooling tower surfaces and in waste water treatment and paper making. This method comprises utilizing an enzyme blend in 2 to 100 parts per million (ppm) of beta-glucanase, alpha-amylase and protease. Such enzyme blends have been found specifically to digest microbial slime and reduce microbial attachment and biofilm. A specific combination of polysaccharide degrading enzymes is a ratio of 2 parts beta-glucanase to 1 alpha-amylase to 1 protease utilized in 2-100 parts per million. Broadly, the alpha-amylase must be at least 1 and the protease may vary from 0.5 to 1 part.
5072106 SOLAR RADIATION QUANTITY DETECTING DEVICE FOR AUTOMOBILE AIRCONDITIONER Takashi Osawa, Konan, Japan assigned to Zexel Corporation A device for detecting the solar radiation quan-