Patents by Inventor John H. Shaffer
John H. Shaffer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7916487Abstract: An apparatus for protecting a digital electronic data processor or stored digital data from damage includes a digital data unit comprising a data storage medium, a protective housing having side, top, and bottom walls defining a closed compartment which contains the digital data unit to shield the digital data therein from environmental damage. Active and passive protection from overheating and data encryption provides further data protection. The housing has at least one access port for supplying electrical power or for information transfer to or from the data unit therein. The port is sealed to prevent the introduction of environmental substances into the housing in the event of potential damage from an environmental disaster or other cause.Type: GrantFiled: October 10, 2006Date of Patent: March 29, 2011Inventors: Yosef Bitton, John H. Shaffer, Kenneth D. Aaker
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Patent number: 7668841Abstract: A method for accelerating storage access in a network. The method comprises receiving a data record having a plurality of data segments. The data segments are stored in a local memory of a network controller (NC). A virtual write buffer (VWB) entry is assigned for the incoming data record in the NC local memory. The data segments of said data record are reassemble using the VWB. The data record is sent from the network controller directly to an I/O controller of a storage device.Type: GrantFiled: March 10, 2004Date of Patent: February 23, 2010Assignee: Brocade Communication Systems, Inc.Inventors: Oran Uzrad-Nali, John H. Shaffer, Kevin G. Plotz
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Publication number: 20040268017Abstract: A method for accelerating storage access in a network. The method comprises receiving a data record having a plurality of data segments. The data segments are stored in a local memory of a network controller (NC). A virtual write buffer (VWB) entry is assigned for the incoming data record in the NC local memory. The data segments of said data record are reassemble using the VWB. The data record is sent from the network controller directly to an I/O controller of a storage device.Type: ApplicationFiled: March 10, 2004Publication date: December 30, 2004Applicant: SILVERBACK SYSTEMS, INC.Inventors: Oran Uzrad-Nali, John H. Shaffer, Kevin G. Plotz
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Patent number: 5322677Abstract: A process for producing an aqueous hypochlorous acid solution reacts droplets of an alkali metal hydroxide solution containing greater than 50 percent by weight of the alkali metal hydroxide with chlorine gas. The reaction produces a gaseous mixture of dichlorine monoxide, chlorine, hypochlorous acid vapor and water vapor, and solid particles of alkali metal chloride. The solid particles of alkali metal chloride are separated and the gaseous mixture condensed at a temperature in the range of from about -33.degree. C. and about -5.degree. C. to produce the aqueous hypochlorous acid solution. The process of the invention results in increased yields of hypochlorous acid and provides an economic basis for increased production capacity. The aqueous hypochlorous acid solutions produced are highly pure and as a result have significantly improved stability.Type: GrantFiled: January 15, 1993Date of Patent: June 21, 1994Assignee: Olin CorporationInventors: John H. Shaffer, James K. Melton, Joseph Borcz
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Patent number: 5270019Abstract: An elongated, generally vertically extending cocurrent reactor vessel for the production of hypochlorous acid by the mixing and reaction of a liquid alkali metal hydroxide and a gaseous halogen is provided wherein an atomizer is mounted near the top of the reactor vessel to atomize the liquid alkali metal hydroxide into droplets in the vessel. The vessel has a spraying and reaction zone immediately beneath the atomizer and a drying zone beneath the spraying and reaction zone to produce a gaseous hypochlorous acid and a substantially dry solid salt by-product.Type: GrantFiled: September 3, 1991Date of Patent: December 14, 1993Assignee: Olin CorporationInventors: James K. Melton, Garland E. Hilliard, John H. Shaffer
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Patent number: 5223617Abstract: A process for producing a chloroisocyanuric acid compound which comprises reacting cyanuric acid with a chlorinating agent consisting of an aqueous solution of hypochlorous acid substantially free of ionic impurities having a pH of less than about 2. The process produces chloroisocyanuric acid compounds with reduced volumes of effluent solutions and significantly reduced amounts of gas released during operation. The novel process for producing chloroisocyanuric acid compounds can employ solid forms of cyanuric acid as a reactant.Type: GrantFiled: October 24, 1991Date of Patent: June 29, 1993Assignee: Olin CorporationInventors: Wayne H. Hammond, John H. Shaffer, John A. Wojtowicz, Leslie R. Ward, Joseph M. Borcz
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Patent number: 5149398Abstract: A process and apparatus utilizing the process of the present invention are provided to produce a fast dissolving, thermally sensitive granular product. The process employs a fluidized spray dryer having a fluidized bed of granular particles into which recycled off-sized product is fed after being agglomerated to adjust particle size. The spray dryer optionally can employ a second nozzle positioned above the fluidized bed. The process can be employed in the production of calcium hypochlorite water sanitizing chemical wherein the chlorine is supplied from a hypochlorous acid reactor and lime hypochlorinator.Type: GrantFiled: December 24, 1990Date of Patent: September 22, 1992Assignee: Olin CorporationInventors: John H. Shaffer, William L. Kurtz, John H. Hubbard
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Patent number: 5116593Abstract: A method of using an elongated, generally vertically extending cocurrent reactor vessel for the production of hypochlorous acid by the mixing and reaction of a liquid alkali metal hydroxide and a gaseous halogen is provided wherein an atomizer is mounted near the top of the reactor vessel to atomize the liquid alkali metal hydroxide into droplets in the vessel. The vessel has a spraying and reaction zone immediately beneath the atomizer and a drying zone beneath the spraying and reaction zone to produce a gaseous hypochlorous acid and a substantially dry solid salt by-product.Type: GrantFiled: May 17, 1990Date of Patent: May 26, 1992Assignee: Olin CorporationInventors: James K. Melton, Garland E. Hilliard, John H. Shaffer
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Patent number: 5091165Abstract: A calcium hypochlorite composition consists essentially of at least 75 percent by weight of Ca(OCl).sub.2, from about 6 to about 14 percent by weight of water, and less than 1.5 percent by weight of an alkali metal chloride. The novel composition provides increased amounts of sanitizing and disinfecting to, for example, water bodies while remaining safe with respect to thermal decomposition. Further, the composition reduces the rate of chlorine evolution during storage.Type: GrantFiled: July 23, 1990Date of Patent: February 25, 1992Assignee: Olin CorporationInventors: John H. Shaffer, James K. Melton, Garland E. Hilliard
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Patent number: 5085847Abstract: A process and apparatus utilizing the process of the present invention are provided to produce a fast dissolving, thermally sensitive granular product. The process employs a fluidized spray dryer having a fluidized bed of granular particles into which recycled off-sized product is fed after being agglomerated to adjust particle size. The spray dryer optionally can employ a second nozzle positioned above the fluidized bed. The process can be employed in the production of calcium hypochlorite water sanitizing chemical wherein the chlorine is supplied from a hypochlorous acid reactor and lime hypochlorinator.Type: GrantFiled: May 18, 1989Date of Patent: February 4, 1992Assignee: Olin CorporationInventors: John H. Shaffer, William L. Kurtz
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Patent number: 5037627Abstract: A process for producing hypochlorous acid by reacting an aqueous solution of an alkali metal hydroxide in droplet form with gaseous chlorine to produce hypochlorous acid vapor and solid alkali metal chloride particles in which the improvement comprises employing molar ratios of gaseous chlorine to the alkali metal hydroxide of at least about 22:1.The process achieves high yields of hypochlorous acid by minimizing side reactions including the formation of chlorate as an impurity in the alkali metal chloride particles produced.The hypochlorous acid solution produced contains from about 35 to about 60 percent by weight of HOCl, a dissolved chlorine concentration of less than about 2 percent by weight, and is substantially free of alkali metal ions and chloride ions.Type: GrantFiled: October 25, 1989Date of Patent: August 6, 1991Assignee: Olin CorporationInventors: James K. Melton, John H. Shaffer, Garland E. Hilliard, John A. Wojtowicz
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Patent number: 4487751Abstract: A process for producing calcium hypochlorite comprises wetting lime with an aqueous slurry of fine basic calcium hypochlorite crystals in a mixing zone to form an aqueous lime slurry. The aqueous lime slurry is reacted with a calcium hypochlorite solution in a crystallizing zone to produce a slurry of basic calcium hypochlorite crystals. The slurry of basic calcium hypochlorite crystals is separated in a first separation means into a slurry of fine basic calcium hypochlorite crystals and a slurry of coarse basic calcium hypochlorite crystals. The slurry of fine basic calcium hypochlorite crystals is returned to said mixing zone. The slurry of coarse basic calcium hypochlorite is conveyed to a second separation means to separate coarse crystals of basic calcium hypochlorite from a calcium hypochlorite mother liquor. Coarse crystals of basic calcium hypochlorite are admixed with lime and an alkali metal hypochlorite in a third mixing zone to form a mixed alkali slurry.Type: GrantFiled: June 15, 1983Date of Patent: December 11, 1984Assignee: Olin CorporationInventors: Craig A. Foster, John H. Shaffer
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Patent number: 4337236Abstract: A novel process for the production of granular calcium hypochlorite compositions is provided which comprises reacting neutral calcium hypochlorite with an alkaline solution comprised of an alkali metal hypochlorite and an alkali metal hydroxide. The reaction produces a slurry from which a wet cake comprised of neutral calcium hypochlorite and a residual amount of hemibasic calcium hypochlorite is recovered and dried. During the drying process in which granular calcium hypochlorite compositions are obtained, there is a substantial reduction in the loss of available chlorine from the product.Type: GrantFiled: August 7, 1980Date of Patent: June 29, 1982Assignee: Olin CorporationInventors: Walter J. Sakowski, John H. Shaffer, Larry G. Carty