Patents Represented by Attorney Forrest L. Collins
  • Patent number: 5259487
    Abstract: Adjustable dampers using electrorheological (ER) fluids comprise one or more annular ER fluid transfer ducts in fluid communication with fluid chambers on opposite sides of the damper pistons. Each duct has one or more contoured surfaces or bands along a portion of the length of one or both walls of the ducts providing one or more annular constricted working areas through which the ER fluid is forced when displaced by movement of the pistons. By selectively applying a voltage/electric field across the primary working areas, the flow resistance of the ER fluid passing through the primary working area is increased which increases the damping force of the dampers.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: November 9, 1993
    Assignee: The Lubrizol Corporation
    Inventor: Nicholas Petek
  • Patent number: 5251785
    Abstract: An injection system and method for blending an additive into a main fluid flow stream at a controlled ratio, characterized by a controller wherein the electrical circuitry thereof is contained in an explosion-proof housing having a window through which electromagnetic energy, such as an infrared command signal, can be transmitted. The circuitry contained within the explosion-proof housing includes a receiver for receiving the electromagnetic energy transmitted through the window and a processor or processors for decoding information included in the electromagnetic energy and for carrying out one or more functions based on such information. Also disclosed in an additive injection correction technique, a clean line technique and related and other features of the system and method.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: October 12, 1993
    Assignee: The Lubrizol Corporation
    Inventors: Al P. Hayden, Patrick L. Hayden, Chuck Miller
  • Patent number: 5250204
    Abstract: Sulfite overbased compositions which are particularly useful in metal-working compositions are obtained.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: October 5, 1993
    Assignee: The Lubrizol Corporation
    Inventors: Jack L. Karn, John M. Cahoon
  • Patent number: 5248227
    Abstract: A system and method for transporting and handling in bulk by rail granular material and, in particular, phosphorous pentasulfide granules, is characterized by a hopper for containing the granular material in one or more hopper sections, and an outtake for each hopper section having a vertical leg connected to an outlet opening at the bottom of the hopper section and a horizontal leg into which material drops from the hopper through the bottom outlet opening and the vertical leg. A material conveying line connects the downstream end of the horizontal leg of the outtake or outtakes to a material discharge port through which the material is unloaded from the hopper.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: September 28, 1993
    Assignee: The Lubrizol Corporation
    Inventors: Michael A. Hidock, James J. Carter
  • Patent number: 5233000
    Abstract: Polymers of pyrrole or copolymers of pyrrole are obtained having high surface area and low conductivity. Such polymers and copolymers are useful in forming catalysts.
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: August 3, 1993
    Assignee: The Lubrizol Corporation
    Inventor: Richard Yodice
  • Patent number: 5213697
    Abstract: A method for reducing friction between railroad wheel and railway track is disclosed comprising applying to the railway track a composition comprising an overbased non-Newtonian colloidal disperse system comprising: (1) solid metal-containing colloidal particles predispersed in (2) a disperse medium of at least one inert organic liquid and (3) at least one member selected from the class consisting of organic compounds which are substantially soluble in the disperse medium, the molecules of said organic compound being characterized by polar substituents and hydrophobic portions.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: May 25, 1993
    Assignee: The Lubrizol Corporation
    Inventors: James N. Vinci, Robert E. Quinn
  • Patent number: 5212270
    Abstract: This invention relates to a composition prepared by reacting, in the presence of a redox initiator and a mineral acid,(a) at least one hydroxyl-containing imide, amide or mixtures thereof of a hydrocarbyl substituted carboxylic acid or anhydride having a hydrocarbyl group containing from about 8 to about 150 carbon atoms and a hydroxy amine; with(b) at least one sulfo compound represented by the following formula: ##STR1## wherein each R.sub.1 is independently hydrogen or a hydrocarbyl group; a is zero or one;Q is a hydrocarbylene group or --C(X)N(R.sub.2)Q'--;R.sub.2 is hydrogen or a hydrocarbyl group;X is sulfur or oxygen;Q' is a hydrocarbylene group; andZ is --S(O)OH, or --S(O).sub.2 OH or an ester, a metal salt or an ammonium salt of the sulfo compound.The invention also relates to polymer fabrics treated with the compositions of the present invention. The treated polymer fabrics have improved wicking/wetting characteristics.
    Type: Grant
    Filed: September 17, 1991
    Date of Patent: May 18, 1993
    Assignee: The Lubrizol Corporation
    Inventor: Kasturi Lal
  • Patent number: 5210362
    Abstract: This invention deals with viscosity improvers which are obtained through the use of a mixed catalyst system comprising a primary and/or secondary organo halide and a Lewis acid catalyst.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: May 11, 1993
    Assignee: The Lubrizol Corporation
    Inventors: Roger L. Sowerby, Curtis R. Scharf
  • Patent number: 5209966
    Abstract: This invention relates to an article comprising:(A) a polymer fabric treated with (B) a wetting agent which comprises at least one compound of the formula ##STR1##wherein R.sub.1 is a hydrocarbyl group having about 8 to about 150 carbon atoms; R.sub.2 is a hydrocarbylene group, or a hydroxy substituted or hydroxyalkyl substituted hydrocarbylene; each R.sub.3 is independently hydrogen, an alkyl group, a hydroxyalkyl group, a hydrocarbylcarbonyl or a polyoxyalkylene group; each R.sub.4 is independently a hydrocarbylene group; each n is independently 1 to 150; m is zero or one; m' is zero or one; M is a hydrogen, an ammonium cation or a metal cation, andwhen m' is zero, X is --H, --Ar, --OH, --OR.sub.5, ##STR2## when m' is one, X is --H, --R.sub.5, ##STR3##wherein each R.sub.5, R.sub.6 and R.sub.8 is independently a hydrocarbyl group having up to 100 carbon atoms; R.sub.7 is hydrogen or an alkyl group having from 1 to about 8 carbon atoms and Ar is a phenyl group.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: May 11, 1993
    Assignee: The Lubrizol Corporation
    Inventors: Richard M. Lange, Arturs Grava
  • Patent number: 5198135
    Abstract: The present invention deals with a particular antiemulsion agent which is useful in retarding foam and/or emulsion formation in an engine. In particular, the agent is effective at preventing or retarding emulsion or foaming in an engine oil.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: March 30, 1993
    Assignee: The Lubrizol Corporation
    Inventors: Mary Galic, Scott T. Jolley, Mary F. Salomon
  • Patent number: 5198132
    Abstract: This invention describes various compositions obtained from thiodiglycol or thiodiglycol polymers. The compositions have unique antioxidant capability and are useful in a variety of functional fluids, hydraulic fluids, automatic transmission fluids and generally in oils of lubricating viscosity such as crankcase oils or greases.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: March 30, 1993
    Assignee: The Lubrizol Corporation
    Inventor: Mary F. Salomon
  • Patent number: 5197997
    Abstract: The present invention describes additives for fuels for use in diesel engines. The additive comprises(A) an alkylene oxide condensate or the reaction product thereof and an alcohol, and(B) a monocarboxylic fatty acid, and(C) a reaction product of a hydrocarbyl substituted amine and formaldehyde, and(D) a hydrocarbyl amine, or the reaction product thereof and an alhylene oxide.
    Type: Grant
    Filed: November 29, 1990
    Date of Patent: March 30, 1993
    Assignee: The Lubrizol Corporation
    Inventors: Edward C. Mozdzen, William B. Chamberlin, III, Barbara A. Saiter
  • Patent number: 5178783
    Abstract: This invention describes lubricant compositions comprising phenothiazine derivatives which are N-substituted and which contain an additional sulfur molecule in the N substituent.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: January 12, 1993
    Assignee: The Lubrizol Corporation
    Inventor: Mary F. Salomon
  • Patent number: 5178784
    Abstract: This invention describes phenothiazine derivatives which are N-substituted and which contain an additional sulfur molecule in the N substituent.
    Type: Grant
    Filed: June 4, 1991
    Date of Patent: January 12, 1993
    Assignee: The Lubrizol Corporation
    Inventor: Mary F. Salomon
  • Patent number: 5178786
    Abstract: The invention provides a composition comprising:(A) at least one dicarboxylic acid or anhydride or at least one ammonium or metal salt of the dicarboxylic acid or anhydride; and(B) at least one compound represented by the formula ##STR1## wherein R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each independently hydrogen, alkyl, hydroxyalkyl, polyhydroxyalkyl, polyalkoxyalkyl or hydroxypolyalkoxyalkyl; and R.sub.1 is a hydrocarbyl group. In another embodiment, the compositions include (C) at least one acid, or ammonium or metal salt of the acid represented by the formula: ##STR2## wherein R.sub.6, R.sub.7, R.sub.8 and R.sub.9 are each independently hydrogen or hydrocarbyl groups; and n is a number from 1 to about 10;(D) at least one ester-salt derived from at least alkyl or alkenyl succinic acid or anhydride of about 8 to about 28 carbon atoms and at least one alkanol amine;or mixtures of (C) and (D).The invention further provides for concentrates and functional fluids containing the above corrosion-inhibitors.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: January 12, 1993
    Assignee: The Lubrizol Corporation
    Inventors: Richard W. Jahnke, Theodore O. Johnson, Paul E. Adams, John W. Forsberg
  • Patent number: 5173203
    Abstract: A magnesium containing overbasing process and the product obtained therefrom are described herein. Water and a phenol are used in the process.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: December 22, 1992
    Assignee: The Lubrizol Corporation
    Inventors: Willis P. Nichols, Jack L. Karn
  • Patent number: 5173410
    Abstract: A recombinant DNA vector is provided as a universal transcription vector having a replication origin and selectable marker, a promoter and a transcription initiation site comprising a first transcribed nucleotide, wherein a restriction site is provided immediately adjacent to and upstream from the transcription initiation site so as to seprate transcribed from untranscribed nucleotides. A second restriction site may also be positioned downstream from the said restriction site. Precise control of initiation and termination of transcription is attained by this invention. Such control is important in assuring the effectiveness of transcribed RNA viral vectors.A high fidelity in vitro RNA transcription method is also provided utilizing vectors constructed from the universal transcription vector, or other vectors producing transcripts having no more than one extra 5' base. This method is capable of producing functional RNA transcripts, preferably comprising infectious viral sequences.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: December 22, 1992
    Assignee: Lubrizol Genetics Inc.
    Inventor: Paul G. Ahlquist
  • Patent number: 5160350
    Abstract: This invention describes a water fix for an alcohol containing gasoline which has been formulated with a lead replacement.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: November 3, 1992
    Assignee: The Lubrizol Corporation
    Inventor: Stephen H. Stoldt
  • Patent number: 5157118
    Abstract: This invention describes phenothiazine derivatives which are N-substituted and which contain an additional sulfur molecule in the N substituent.
    Type: Grant
    Filed: November 8, 1990
    Date of Patent: October 20, 1992
    Assignee: The Lubrizol Corporation
    Inventor: Mary F. Salomon
  • Patent number: 5129972
    Abstract: Emulsifiers are disclosed which comprise the reaction product of component (I) with component (II). Component (I) comprises the reaction product of certain carboxylic acids or anhydrides, or ester or amide derivatives thereof, with ammonia, at least one amine, at least one alkali and/or at least one alkaline-earth metal. Component (II) comprises certain phosphorus-containing acids; or metal salts of said phosphorus-containing acids, the metal being selected from the group consisting of magnesium, calcium, strontium, chromium, manganese, iron, molybdenum, cobalt, nickel, copper, silver, zinc, cadmium, aluminum, tin, lead, and mixtures of two or more thereof. These emulsifiers are useful in water-in-oil explosive emulsions.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: July 14, 1992
    Assignee: The Lubrizol Corporation
    Inventors: Alan T. Riga, John W. Forsberg