Patents Represented by Attorney Edwin T. Yates
-
Patent number: 5268337Abstract: Ceramic oxide powders and a method for their preparation. Ceramic oxide powders are obtained using a flame process whereby two or more precursors of ceramic oxides are introduced into a counterflow diffusion flame burner wherein said precursors are converted into ceramic oxide powders. The morphology, particle size, and crystalline form of the ceramic oxide powders are determined by process conditions.Type: GrantFiled: November 18, 1991Date of Patent: December 7, 1993Assignee: The Johns Hopkins UniversityInventors: Joseph L. Katz, Cheng-Hung Hung
-
Patent number: 5076895Abstract: Process and apparatus for recovering clean water and solids from aqueous solids are disclosed. Aqueous solids are mixed with a low viscosity, relatively volatile, water-immiscible light fluidizing oil to obtain a mixture which will remain fluid and pumpable after removal of essentially its entire water content. The mixture of solids, water and fluidizing oil is subjected to a dehydration step by means of a plurality of mechanical vapor recompression evaporators operating in staged array whereby substantially all of the water and at least part of the light oil are evaporated and subsequently recovered. The light fluidizing oil is then largely separated from the solids. Residual fluidizing oil may be removed from the solids by direct contact with a hot blowing gas such as blowing steam. The invention is characterized by the conservation of energy through the use of heat exchangers whereby condensate gives up its heat to the feed.Type: GrantFiled: June 21, 1990Date of Patent: December 31, 1991Assignee: Hanover Research CorporationInventors: Charles Greenfield, deceased, Robert E. Casparian
-
Patent number: 4608120Abstract: An apparatus for removing light oil from solids. The invention is particularly applicable to the removal of residual light oil from solids obtained in an apparatus where aqueous solids are mixed with a light fluidizing oil and subjected to dehydration by heat evaporation. Aqueous solids are mixed with a low viscosity, relatively volatile, water-immiscible light fluidizing oil in a fluidizing tank to obtain a mixture which will remain fluid and pumpable after removal of essentially its entire water content. The mixture of solids, water and fluidizing oil is subjected to a dehydration step by heat evaporation whereby substantially all of the water and at least part of the light oil are evaporated and subsequently recovered. The light fluidizing oil is then largely separated from the solids in a liquid-solid separating means. The solids carrying residual light fluidizing oil are then brought into direct contact in a deoiler apparatus with a hot, inert gas, referred to herein as "blowing gas.Type: GrantFiled: March 7, 1984Date of Patent: August 26, 1986Assignee: Hanover Research CorporationInventors: Charles Greenfield, Robert E. Casparian, Anthony J. Bonanno
-
Patent number: 4553415Abstract: A locking device to be locked onto the kingpin of a trailer to prevent its being engaged by the fifth wheel of an unauthorized tractor. The locking device closely encircles the kingpin and houses within an aperture a locking bar that is adapted to be pressed into engagement with the kingpin recess or groove. The outer wall of the locking device casing has a protrusion in the area of the locking bar aperture such that the locking bar and the locking unit disposed therein are recessed within the aperture and thereby protected. The locking bar aperture from the outer end of the locking bar when in the locked position to the outer wall of the protrusion on the casing is counterbored beyond the transverse cross-section of the locking bar.Type: GrantFiled: November 16, 1984Date of Patent: November 19, 1985Inventor: Constant O. Maffey
-
Patent number: 4518458Abstract: Process and apparatus for removing light oil from solids. The invention is particularly applicable to the removal of residual light oil from solids obtained in a process where aqueous solids are mixed with a light fluidizing oil and subjected to dehydration by heat evaporation. Aqueous solids are mixed with a low viscosity, relatively volatile, water-immiscible light fluidizing oil to obtain a mixture which will remain fluid and pumpable after removal of essentially its entire water content. The mixture of solids, water and fluidizing oil is subjected to a dehydration step by heat evaporation whereby substantially all of the water and at least part of the light oil are evaporated and subsequently recovered. The light fluidizing oil is then largely separated from the solids. The solids carrying residual light fluidizing oil are then brought into direct contact with a hot, inert gas, referred to herein as "blowing gas." The hot, inert blowing gas effects the removal of the residual light oil from the solids.Type: GrantFiled: September 17, 1982Date of Patent: May 21, 1985Assignee: Hanover Research CorporationInventors: Charles Greenfield, Robert E. Casparian, Anthony J. Bonanno
-
Patent number: 4336101Abstract: Process and apparatus for recovering clean water and solids from aqueous solids. Aqueous solids are mixed with a low viscosity, relatively volatile, water-immiscible light fluidizing oil to obtain a mixture which will remain fluid and pumpable after removal of essentially its entire water content. The mixture of solids, water and fluidizing oil is subjected to a dehydration step by heat evaporation whereby substantially all of the water and at least part of the light oil are evaporated and subsequently recovered. The light fluidizing oil is then largely separated from the solids. Those solids carrying residual light fluidizing oil are then brought into direct contact with steam, referred to herein as "blowing steam". The presence of the blowing steam reduces the boiling point of the water-immiscible light fluidizing oil to effect its more efficient removal from the solids. Effluent blowing steam and light oil vapor removed from the solids may be used to supply heat to the overall process.Type: GrantFiled: February 11, 1981Date of Patent: June 22, 1982Assignee: Hanover Research CorporationInventors: Charles Greenfield, Robert E. Casparian, Anthony J. Bonanno
-
Patent number: 3997429Abstract: A reforming catalyst comprising minor amounts of platinum and cadmium and chloride on an alumina support. Preferably the cadmium is in the amount of about 0.2% wt. and the platinum is in the amount of about 0.4% wt. and the chloride is in the amount of about 0.1% wt. to 2.0% wt. of the catalyst.Type: GrantFiled: March 26, 1971Date of Patent: December 14, 1976Assignee: Cities Service Oil CompanyInventor: Jay A. Rashkin