Patents Represented by Attorney Paul Lipsitz
  • Patent number: 4186146
    Abstract: In the process of hydrogenating aromatic nitriles to primary amines whereby the nitrile is hydrogenated in a solvent system containing added ammonia using a cobalt or nickel catalyst, the improvement of employing an ether as solvent and carrying out the hydrogenation in the presence of water in an amount of from about 10% to about 20% by volume of the ether solvent whereby the rate of reaction is increased, secondary amine by-products are reduced and catalyst may be recycled without adverse effects.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: January 29, 1980
    Assignee: Suntech, Inc.
    Inventors: Walter A. Butte, Jr., William J. Murtaugh
  • Patent number: 4181680
    Abstract: A process for the hydrogenation of aromatic bis-methylamines, such as m- and p-xylylenediamine, to the corresponding cycloaliphatic compound by hydrogenating the bis-methylamine in water as a solvent system, devoid of added ammonia and in the presence of a supported ruthenium catalyst.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: January 1, 1980
    Assignee: Suntech, Inc.
    Inventors: Walter A. Butte, Jr., Howard P. Angstadt
  • Patent number: 4180466
    Abstract: An improved method of lubrication of a controlled-slip differential comprises using a lubricant comprising major amounts of a hydrocarbon base stock and friction improving amounts of synthetic sulfurized oil consisting essentially of a cosulfurized blend of a triglyceride and a C.sub.2 -C.sub.128 monoolefin. The hydrocarbon base stock can have a kinematic viscosity at 210.degree. F. in the range of 1.5 to 200.0 cs. and contain paraffinic (by VGC) petroleum oil or a blend of at least one C.sub.13 -C.sub.29 naphthene and from 0.1 to 20 parts by weight, based on said naphthene of at least one member from at least one of the following groups (a), (b), (c) and (d):(a) a synthetic liquid C.sub.3 -C.sub.
    Type: Grant
    Filed: July 17, 1974
    Date of Patent: December 25, 1979
    Assignee: Sun Ventures, Inc.
    Inventors: Thomas D. Newingham, Alexander D. Recchuite, John Q. Griffith, III, Marcus W. Haseltine, Jr.
  • Patent number: 4167504
    Abstract: In the process of plasticizing polyvinylchloride with an alkyl biphenyl plasticizer, the improvement which comprises using as plasticizer a composition, preferably obtained by alkylation of biphenyl with cyclohexene, and containing at least about 85% of monocyclohexylbiphenyl.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: September 11, 1979
    Assignee: Sun Oil Company of Pennsylvania
    Inventors: Brian C. Davis, Robert P. Bryer
  • Patent number: 4166795
    Abstract: A synthetic sulfurized oil, useful as an additive to lubricants, and especially as a replacement for sulfurized sperm oil, is produced by reaction of sulfur, lard oil and polyisobutylene oligimers containing at least one pair of maximally crowded geminal methyl groups (e.g. "tetraisobutylene"). Preferably, sufficient sulfur to obtain a final sulfurized product containing in the range of about 5-25 weight percent sulfur is reacted with a mixture comprising about 30-90 parts by weight of lard oil and 70-10 parts of the polyisobutylene. Minor amounts (e.g. up to about 15 weight percent) of other unsaturated hydrocarbons (e.g. "C.sub.18 olefin") can also be present in the mixture.
    Type: Grant
    Filed: April 26, 1971
    Date of Patent: September 4, 1979
    Assignee: Suntech, Inc.
    Inventor: Alexander D. Recchuite
  • Patent number: 4166797
    Abstract: Process of sulfurizing a blend of 90 to 50 and preferably 88 to 70 parts by volume of triglyceride such as lard oil and 10 to 50 and preferably 12 to 30 parts by volume of an ethylenically unsaturated hydrocarbon containing 2 to 24 carbon atoms. The sulfurization is carried out using elemental sulfur. Simultaneous sulfurization and chlorination may be effected by reacting with sulfur monochloride. Phosphosulfurization may also be carried out by addition of small amounts of a phosphorus sulfide to the sulfurized blend followed by heating at 180.degree. F. to 250.degree. F. for from 30 minutes to 10 hours to effect phosphosulfurization. The sulfurization or phosphosulfurization involves reacting at from 350.degree. F. to 445.degree. F. for 20 minutes to 10 hours followed by blowing with a gas at from 125.degree. F. to 250.degree. F. for 30 minutes to 20 hours to remove hydrogen sulfide. The simultaneous sulfurization and chlorination reaction is carried out at from 90.degree. F. to 280.degree. F.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: September 4, 1979
    Assignee: Suntech, Inc.
    Inventor: Alexander D. Recchuite
  • Patent number: 4166796
    Abstract: Process of sulfurizing a blend of 90 to 50 and preferably 88 to 70 parts by volume of triglyceride such as lard oil and 10 to 50 and preferably 12 to 30 parts by volume of an ethylenically unsaturated hydrocarbon contaning 2 to 24 carbon atoms. The sulfurization is carried out using elemental sulfur. Simultaneous sulfurization and chlorination may be effected by reacting with sulfur monochloride. Phosphosulfurization may also be carried out by addition of small amounts of a phosphorus sulfide to the sulfurized blend followed by heating at 180.degree. F. to 250.degree. F. for from 30 minutes to 10 hours to effect phosphosulfurization. The sulfurization or phosphosulfurization involves reacting at from 330.degree. F. to 445.degree. F. for 20 minutes to 10 hours followed by blowing with a gas at from 125.degree. F. to 250.degree. F. for 30 minutes to 20 hours to remove hydrogen sulfide. The simultaneous sulfurization and chlorination reaction is carried out at from 90.degree. F. to 280.degree. F.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: September 4, 1979
    Assignee: Suntech, Inc.
    Inventor: Alexander D. Recchuite
  • Patent number: 4155771
    Abstract: Sulfur is plasticized by the addition of 1,4,4a,5,8,8a-hexahydro-1,4,5,8-exo,endo-dimethanonaphthalene which is an adduct of norbornadiene and cyclopentadiene.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: May 22, 1979
    Assignee: Suntech, Inc.
    Inventor: Richard D. Cassar
  • Patent number: 4149854
    Abstract: Coal-oil slurries are stabilized by incorporation of a mixture comprised of a coal tar or pitch and a grease made from an aluminum based complex soap.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: April 17, 1979
    Assignee: Suntech, Inc.
    Inventor: Edward M. Kohn
  • Patent number: 4149855
    Abstract: Coal-oil slurries are stabilized by incorporation of a mixture comprised of a hydrogenated coal liquid and a grease made from an aluminum based complex soap.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: April 17, 1979
    Assignee: Suntech, Inc.
    Inventors: Edward M. Kohn, William D. Vanderwerff
  • Patent number: 4132645
    Abstract: A two stage oil skimmer separator for separating a hydrocarbon, such as oil or wax, from the water in a hydrocarbon-water mixture which is of particular utility for the output from an oil refinery storm sewer system. The first stage of the separator includes a tank which allows gravity separation of the hydrocarbon and water. The floating hydrocarbon is skimmed off the top and directed to the second stage separator. The settled water passes under a baffle to retain the hydrocarbon within the system while passing the water out of the separator. The skimmed hydrocarbon, containing some water, is directed to the second stage where it is heated to facilitate further separation. The hydrocarbon is passed from the top of the second stage to storage tanks in the refinery. The water in the bottom of the second stage tank is returned to the first stage for further separation.
    Type: Grant
    Filed: July 15, 1977
    Date of Patent: January 2, 1979
    Assignee: Sun Oil Company of Pennsylvania
    Inventors: James C. Bottomley, Henry G. Nash
  • Patent number: 4132711
    Abstract: A process for the preparation of aromatic nitriles which comprises reacting an organic carboxylic acid with an aromatic o-dinitrile whereby the nitrile of the acid is obtained with cyclic imide by-product and the imide by-product is converted to dinitrile and recycled to the reaction.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: January 2, 1979
    Assignee: Suntech, Inc.
    Inventor: Richard V. Norton
  • Patent number: 4131215
    Abstract: A system for dispensing gasoline and having an option which, if selected by the customer, automatically dispenses an additive with the gasoline and computes the price of the additive into the sale.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: December 26, 1978
    Assignee: Sun Oil Company of Pennsylvania
    Inventor: William B. Hansel
  • Patent number: 4131514
    Abstract: A process for separating oxygen from its admixture with other gases (e.g. air) by contacting one side of a solid electrolyte membrane in which ionic oxygen transport can occur with the oxygen-containing gas and separating essentially pure oxygen from the other side of the membrane.
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: December 26, 1978
    Assignee: Sun Oil Company of Pennsylvania
    Inventors: Victor M. Chong, Walter H. Seitzer
  • Patent number: 4121635
    Abstract: A gasoline dispensing nozzle having a system for receiving vapors displaced from a motor vehicle gasoline tank being filled, and an interlock system for both preventing the dispensing of gasoline and closing the vapor receiving system until the discharge spout is properly inserted into the motor vehicle fillpipe. The interlock system includes a first valve mounted in the vapor receiving system outside the discharge spout. This first valve is opened when the nozzle is properly inserted into the fillpipe, and is interconnected with the automatic shut-off system of the nozzle so that dispensing of gasoline is permitted only when the nozzle is properly inserted into the fillpipe. The interlock system also includes a second valve which closes the vapor receiving system, thereby preventing vapors from escaping, until the nozzle is properly inserted in the fillpipe.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: October 24, 1978
    Assignee: Sun Oil Company of Pennsylvania
    Inventor: William B. Hansel
  • Patent number: 4113384
    Abstract: A method for measuring the viscosity of a lubricant fluid under very high pressures by placing a sample of lubricant containing one or more ruby crystals (.about.10.mu.m diameter) in a diamond anvil cell illuminated with a point source of visible light radiation, and observing by means of appropriate optics the rate of change of band width of the ruby emission spectra at given temperatures and pressures as a measure of the viscosity of the fluid.
    Type: Grant
    Filed: April 26, 1977
    Date of Patent: September 12, 1978
    Assignee: Suntech, Inc.
    Inventors: James L. Lauer, Melvin E. Peterkin
  • Patent number: 4113763
    Abstract: A single step, non-aqueous process for the preparation of aromatic cyanohydrin esters by reacting together an aromatic aldehyde, an alkali metal cyanide, and a lower aliphatic acid anhydride. The cyanohydrin esters are useful as intermediates to potent insecticides.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: September 12, 1978
    Assignee: Suntech, Inc.
    Inventor: Richard V. Norton
  • Patent number: 4110250
    Abstract: An ammoxidation process for the preparation of nitriles by reaction of an alkyl substituted armoatic hydrocarbon with ammonia and oxygen using as catalyst an .alpha.-alumina supported vanadium-alkali metal bronze promoted with boron, titanium, and tellurium whereby various desirable reaction parameters are obtainable. The invention also embodies the promoted catalyst.
    Type: Grant
    Filed: April 19, 1977
    Date of Patent: August 29, 1978
    Assignee: Suntech, Inc.
    Inventor: Howard P. Angstadt
  • Patent number: 4108223
    Abstract: An improved vapor receiving system for a gasoline dispensing nozzle having a stronger magnetic sealing section and a more flexible and durable bellows construction. The magnetic sealing section has a magnetic ring backed by a second ring attracted to the magnet which acts as a pole piece to increase the magnetic attractions toward the fillpipe during the filling and vapor receiving process. The magnetic sealing section cover and bellows section are made from a thin, flexible reinforcement mesh impregnated with natural or synthetic elastomer such as vinyl.
    Type: Grant
    Filed: March 8, 1976
    Date of Patent: August 22, 1978
    Assignee: Suntech, Inc.
    Inventor: William B. Hansel
  • Patent number: RE30050
    Abstract: A dispensing nozzle assembly having a system for receiving the vapors displaced from a motor vehicle gasoline tank when it is being filled and an interlock system located in conjunction with the latching collar on the discharge spout of the nozzle, for preventing the dispensing of gasoline until the discharge spout is inserted into the vehicle fillpipe. The interlock system includes a valve mounted in the discharge spout in such a manner that it is actuated by the weight of the nozzle resting upon the fillpipe inlet. The valve is interconnected with the automatic shut-off system of the nozzle so that when the valve is in its open position, signifying that the nozzle is properly inserted in the fillpipe, dispensing of gasoline is permitted.
    Type: Grant
    Filed: June 23, 1978
    Date of Patent: July 24, 1979
    Assignee: Suntech, Inc.
    Inventor: William B. Hansel