Patents Assigned to FMC
  • Process for preparing alkylsilyl or arylsilyl ethers
    Patent number: 5493044
    Abstract: A process for preparing alkylsilyl and arylsilyl ethers of the formula(R--O--SiR.sup.1 R.sup.2 R.sup.3)wherein R, R1, R2 and R3 are independently selected from the group consisting of hydrogen, alkyl groups containing one to twenty carbon atoms, substituted alkyl groups containing one to twenty carbon atoms, aryl groups containing six to eighteen carbon atoms, substituted aryl groups containing six to eighteen carbon atoms, hetero aryl groups containing four to eighteen carbon atoms, and substituted hetero aryl groups containing four to eighteen carbon atoms, with the proviso that R is never hydrogen, by reacting, in a hydrocarbon solvent, a chlorosilane of the formula R.sup.1 R.sup.2 R.sup.3 Si--Cl wherein R.sup.1, R.sup.2, and R.sup.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: February 20, 1996
    Assignee: FMC Corporation
    Inventor: James A. Schwindeman
  • Methods for quenching metal
    Patent number: 5490886
    Abstract: A method for quenching hot metals especially iron steel or copper with a quenching fluid comprising a major proportion of an organic phosphate ester. The preferred esters are trialkyl phosphates and tri(alkyl phenyl) phosphates. The quenched article may exhibit improved anti-wear properties.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: February 13, 1996
    Assignee: FMC Corporation
    Inventor: Douglas G. Placek
  • Vehicle ride height measurement apparatus and method
    Patent number: 5490092
    Abstract: An apparatus and method for determining the vertical distance between a point on a vehicle and a reference line comprises a linear measuring device, a fixture to aid in the taking of linear measurements of the point along two oblique angles, and a computer for calculating the vertical distance from these two measurements.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: February 6, 1996
    Assignee: FMC Corporation
    Inventors: James L. Dale, Raymond Titsworth
  • Wheel balancer apparatus and method
    Patent number: 5488861
    Abstract: The invention provides a wheel balancer with a filtering system that reduces signal noise using a phase shift and subtraction circuit. In addition the inventive wheel balancer utilizes an automated parameter entry device, and a fast data refresh system which reduces the burden on the central processing unit CPU.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: February 6, 1996
    Assignee: FMC Corporation
    Inventors: Allen D. McConnell, Hanford D. Monroe, Jean O. W. deBellefeuille, Jr.
  • Readily available konjac glucomannan as a sustained release excipient
    Patent number: 5486364
    Abstract: A solid dosage form, such as a pharmaceutical tablet, containing a rapidly hydratable konjac glucomannan sustained release excipient such as clarified konjac, cryogenically ground konjac and plasticized konjac. The method of making the tablets by compressing excipient and pharmaceutically active ingredient as dry powders.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: January 23, 1996
    Assignee: FMC Corporation
    Inventors: Victor L. King, Thomas A. Wheatley, David F. Erkoboni
  • Lithium amide process
    Patent number: 5486343
    Abstract: A process for the preparation of lithium amide comprising essentially forming lithium bronze by introducing at least 1 equivalent of anhydrous ammonia over a 1 to 5 hour period into a dispersion containing one equivalent of lithium in a liquid hydrocarbon solvent at a temperature of up to 40.degree. C., then after the lithium bronze is formed, heating the reaction mixture to 50.degree. to 80.degree. C. for 2 to four hours to decompose the lithium bronze and form a suspension of lithium amide in the solvent from which suspension the lithium amide is recovered.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: January 23, 1996
    Assignee: FMC Corporation
    Inventors: James A. Schwindeman, Robert C. Morrison
  • Compact gas tungsten arc welding torch apparatus
    Patent number: 5481079
    Abstract: The invention provides an improved compact gas tungsten arc welding (GTAW) torch apparatus allows for welding on such surfaces that otherwise could not be welded with linear or 90.degree. bend welding torch apparatuses, by providing a bend greater than 282.degree.. The inventive torch is compact, not requiring a large radius of curvature or a water outlet pipe passing through the support housing. The inventive torch also uses one of the feed pipes as an electrical conductor.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: January 2, 1996
    Assignee: FMC Corporation
    Inventors: Thomas D. Erichsen, Gary L. Boerman, Daniel J. Richard, Ian C. B. Gordon
  • Apparatus for managing retort over-pressure during pressure cooling
    Patent number: 5472042
    Abstract: The invention provides a method and apparatus for managing retort over-pressure during pressure cooling. The invention allows the specification of an initial cooling temperature and a final cooling temperature and a final cooling pressure. Using these values the invention provides a pressure ramping to manage retort over-pressure.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: December 5, 1995
    Assignee: FMC Corporation
    Inventors: Joost Veltman, Richard W. Ripley
  • Combinations of neem seed extract and bifenthrin for control of ectoparasites on animals
    Patent number: 5472700
    Abstract: Combinations of bifenthrin with azadirachtin-containing neem seed extracts are synergistic in controlling acarids, especially pyrethroid-resistant mites, over a wide range of azadirachtin to bifenthrin ratios. The combinations are also used for the control of ectoparasites on animals.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: December 5, 1995
    Assignee: FMC Corporation
    Inventors: Charles A. Staetz, H. Robinson Ertelt, Gert P. Volpp
  • Method for producing caro's acid
    Patent number: 5470564
    Abstract: This invention relates to a process for producing Caro's acid by reaction of at least 85% by weight sulfuric acid and at least 50% by weight hydrogen peroxide wherein the sulfuric acid and hydrogen peroxide are fed through separate feed lines into a funneling zone open to the atmosphere, the feed lines having air gaps between their ends and the funneling zone; passing said hydrogen peroxide and sulfuric acid by gravity flow from said funneling zone into one end of a reaction zone whose size permits a pressure drop which is at least 8 times the theoretical pressure drop for such reaction zone and removing a mixture containing Caro's acid from the exit end of the reaction zone.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: November 28, 1995
    Assignee: FMC Corporation
    Inventors: James L. Manganaro, Martin E. Sacks, James Carmichael
  • Process for the selective chlorination of 4,5-dihydro-1-phenyl-1H-1,2,4-triazol-5-one
    Patent number: 5468868
    Abstract: This invention provides a process for optimizing the yield of a 1-(2,4-dichlorophenyl)-4,5-dihydro-1H-1,2,4-triazol-5-one by the chlorination in two steps of a 4,5-dihydro-1-phenyl-1H-1,2,4-triazol-5-one. The critical first step is the selective chlorination of the phenyl ring in the 4-position by addition of chlorine to a solution of the 4,5-dihydro-1-phenyl-1H-1,2,4-triazol-5-one in N,N-dimethylformamide. Chlorination of the product of the first step in acetic acid/water yields the 1-(2,4-dichlorophenyl)-4,5-dihydro-1H-1,2,4-triazol-5-one in high yield.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: November 21, 1995
    Assignee: FMC Corporation
    Inventors: Marc Halfon, Craig A. Polsz, John H. Hoare
  • Sludge flight support rail assembly
    Patent number: 5468391
    Abstract: In a sludge collector mechanism having a sludge flight for scraping settled sludge off the bottom of a settling tank and skimming floating waste from the surface of the water contained in the tank, a support rail assembly for maintaining the flight on a level generally even with the surface of the water, the support rail assembly comprising a non-metallic longitudinal track on which the end of the flight is slideably supported and at least one non-metallic mounting bracket for securing the track relative to the sidewall of the settling tank. The track comprises a cross section having a substantially horizontal rail portion, a transverse stem extending downward from the underside of the rail portion, and two opposing fingers, one extending upward from the bottom of the stem and one extending downward from the underside of the rail portion.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: November 21, 1995
    Assignee: FMC Corporation
    Inventor: Stephen B. Wilcher
  • Microcrystalline cellulose and glucomannan aggregates
    Patent number: 5462761
    Abstract: A composition of matter comprising dry, water-dispersible, particles of microcrystalline cellulose (MCC) coprocessed with a glucomannan. The particles are visually spheroidal, have an average size of about 0.1 to 100 microns, and about 60 to 99 wt % of the total solids of the coated particles comprises MCC. The invention also comprises a process for the manufacture of the inventive composition 1 comprising forming an intimate mixture consisting essentially of MCC and glucomannan in an aqueous medium under controlled agitation, drying the resulting flocculate, and recovering visually spheroidal water dispersible particles. The inventive compositions are useful as bulking agents and fat substitutes, and may have a lipophilic and/or hydrophilic material absorbed thereon.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: October 31, 1995
    Assignee: FMC Corporation
    Inventors: Emanuel J. McGinley, Domingo C. Tuason, Jr.
  • Insecticidally effective peptides
    Patent number: 5461032
    Abstract: The invention provides insecticidally effective peptides isolatable from Diguetia spider venom, methods for preparing and using insecticides, and DNA encoding such insecticidally effective peptides.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: October 24, 1995
    Assignees: FMC Corporation, NPS Pharmaceuticals, Inc.
    Inventors: Karen J. Krapcho, J. R. Hunter Jackson, Bradford C. VanWagenen, Robert M. Kral, Jr.
  • Insecticidally effective spider toxin
    Patent number: 5457178
    Abstract: This invention provides a family of insecticidally effective proteins and particular members of that family which may be isolated from the venom of the spider Filistata hibernalis, DNA encoding such proteins, insecticidal compositions of these proteins or the DNA encoding them, and methods for controlling invertebrate pests. Recombinant expression vectors and host cells and methods for producing insecticidally effective peptides are also provided.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: October 10, 1995
    Assignees: FMC Corporation, NPS Pharmaceuticals, Inc.
    Inventors: John R. H. Jackson, Karen J. Krapcho, Janice H. Johnson, Robert M. Kral, Jr.
  • Rotary cooling vessel with baffle with holes
    Patent number: 5456092
    Abstract: The invention provides a rotary cooler with three regions. The regions are separated by baffles with holes, which provide a slowed laminar air flow. Each region has its own recirculation system.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: October 10, 1995
    Assignee: FMC Corporation
    Inventors: Joost Veltman, Andrew C. Prins
  • Agarose compositions for nucleic acid sequencing
    Patent number: 5455344
    Abstract: A nucleic acid sequencing gel comprising 2 to 10% of a gelling polysaccharide, preferably agarose; a denaturing agent, a non-gelling additive, preferably glycerol, and electrophoretic buffers. This composition is capable of resolving nucleic acid fragments having at least 50 bases and which differ from each other by at least one base.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: October 3, 1995
    Assignee: FMC Corporation
    Inventors: David L. Harper, Jonathan H. Morgan, Samuel Nochumson, Mikhail V. Ostrovsky, Donald W. Renn, William C. Snow
  • Aircraft deicer pumping system
    Patent number: 5454532
    Abstract: In an aircraft deicer comprising a reservoir and a pump connected to the reservoir through a first conduit, the pump operating to circulate a fluid contained within the reservoir throughout at least a portion of the deicer, the improvement comprising: a jet pump located in the first conduit between the reservoir and the pump for increasing the pressure of the fluid within the first conduit between the jet pump and the pump; the jet pump comprising a tubular body portion having an inlet end and a discharge end and a nozzle located within the body portion between the inlet end and the discharge end; and a second conduit extending from a discharge end of the pump to the nozzle; whereby fluid from the discharge end of the pump is injected into the fluid flowing from the reservoir through the jet pump.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: October 3, 1995
    Assignee: FMC Corporation
    Inventor: Thomas W. Whitmire
  • Transparent armor piercing protection system
    Patent number: 5452641
    Abstract: An improved transparent armor piercing protection system that acts as a vision window in an armor system. The transparent armor piercing protection system comprises angled louvers with mirror surfaces in an aperture in armor. A sheet of transparent material is also provided adjacent to the aperture.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: September 26, 1995
    Assignee: FMC Corporation
    Inventor: Brian H. Kariya
  • Bi-directional registration of servo indexed webs
    Patent number: RE35067
    Abstract: A bag machine fabricates plastic bags by transversely cutting and sealing, at regularly spaced preselected locations, an elongate plastic web having graphic material repetitively printed thereon. In operation, the bag machine advances the web by a calculated draw length, and an optical sensor, sensitive to the passage of eyemarks printed in regularly spaced locations on the web, functions to ensure that the web is cut and sealed only at the desired locations. To avoid inaccuracies resulting from a gradual variance between the nominal draw length and the actual distance between eyemarks, a control system monitors the actual distance between eyemarks and sets the nominal draw length to the average actual spacing between eyemarks as measured over a preselectd number of successive eyemarks.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: October 17, 1995
    Assignee: FMC Corporation
    Inventor: Donald J. Bauknecht