Patents Represented by Law Firm St. Onge, Steward, Johnston, Reens & Noe
  • Patent number: 4320026
    Abstract: An improved alkaline detergent composition is provided having a reduced tendency to discolor upon aging at room temperature and/or elevated tempertures. The detergent composition contains:(a) an alkali material such as alkali metal hydroxides, alkali metal silicates and mixtures thereof; and(b) at least one nonionic surface active agent having a tendency to discolor the composition in the presence of such alkaline material. The improved composition contains a discoloring inhibiting amount of an alcohol of 3 to 10 carbon atoms, preferably 3 to 6 carbon atoms, having not more than one primary alcohol group and at least one secondary or tertiary alcohol group, e.g. 2-methyl-2,4-pentanediol, and 1,2-propanediol.A method is also provided for inhibiting the discoloration of such alkaline detergent composition by adding a discoloring inhibiting amount of the aforementioned alcohol to the composition.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: March 16, 1982
    Assignee: Brent Chemicals Corporation
    Inventors: Fely B. Cristobal, Robert W. Newsbaum
  • Patent number: 4318313
    Abstract: Tweezer forceps in which the gripping arms and end section at which they are joined are formed of a single sheet of resilient sheet material, the arms and end section forming an integral spring-element disposed within the plane of the sheet material, such that the arms flex edgewise into and out of gripping engagement at their tips. Finger pieces are provided on the arms for engagement by the user's fingers when squeezing them together. Provision may also be made for aligning the arms against lateral displacement, and a jaw-locking device may be provided.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: March 9, 1982
    Inventor: John A. Tartaglia
  • Patent number: 4317654
    Abstract: Sets of educational blocks are described wherein special volumetric relationships are combined with visually distinctive geometric shapes. In one set of blocks a common cube is cut into distinctive segments along a single slice to form particular polygons. In another set of blocks a common cube is cut in a manner to provide polyhedra of distinctive appearance with related outer segments used to fill out the common cube. Particular volumetric relationships between the polyhedra and their related segments are described.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: March 2, 1982
    Inventor: Martha S. Wahl
  • Patent number: 4317653
    Abstract: Sets of educational blocks are described wherein special volumetric relationships are combined with visually distinctive geometric shapes. In one set of blocks a common cube is cut into distinctive segments along a single slice to form particular polygons. In another set of blocks a common cube is cut in a manner to provide polyhedra of distinctive appearance with related outer segments used to fill out the common cube. Particular volumetric relationships between the polyhedra and their related segments are described.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: March 2, 1982
    Inventor: Martha S. Wahl
  • Patent number: 4312961
    Abstract: A novel plastic composition, and process of its preparation and application, are disclosed having particular utility in providing metal castings or the like with bubble-free, highly inert, plastic linings or coatings. The predominant portion of the novel composition comprises a perfluoroalkoxy side chain modified fluorocarbon polymer but also includes, in effective minor amount, metallic tin and preferably also additional oxidation or degradation stabilizers.
    Type: Grant
    Filed: January 5, 1981
    Date of Patent: January 26, 1982
    Assignee: The Duriron Company, Inc.
    Inventors: Donald L. Winegar, Joseph M. Arde, Jr.
  • Patent number: 4308226
    Abstract: A method is disclosed for incorporating particulate material in reactive resin mixes produced by the RIM method in the molding of foamed or unfoamed plastic articles, wherein the particulate material is introduced into the resin mix in a manner which substantially eliminates the severe abrasive effect such particulate material produces under conditions existing in prior methods due to flow through the various passges of the mixing head. The particulate material may constitute reinforcement for a plastic article, in which case short lengths of glass, carbon, graphite or other mineral or metal fibers and the like may be used. Alternatively, granular particulates such as carbon black, metal or mineral oxides, pigments, etc. may be incorporated for coloring the product, or increasing its resistance to actinic rays, or for imparting increased rigidity to the molded product, etc.
    Type: Grant
    Filed: June 24, 1980
    Date of Patent: December 29, 1981
    Assignee: The Upjohn Company
    Inventor: Robert D. Wingard
  • Patent number: 4307564
    Abstract: Spindle for the spinning or twisting of threads on ring spinning and/or ring twisting machines providing reduced thread ballooning with a spindle head seated on the spindle shaft, said head picking up the thread upon rotation thereof via thread catchers situated on said head, wherein the thread catchers basically consist of outwardly positioned vertical, cylindrical pins which are connected to an inwards positioned cylindrical body via a radial connecting piece and the thread catchers at least partly project over the central body, wherein the highest point of the thread catcher lies between the central body and the periphery of the spindle head.
    Type: Grant
    Filed: January 23, 1980
    Date of Patent: December 29, 1981
    Assignee: SIKA Siegfried Kartmann GmbH
    Inventor: Siegfried Kartmann
  • Patent number: 4307062
    Abstract: A method and apparatus for incorporating particulate material in reactive resin mixes produced by the RIM method in the molding of foamed or unfoamed plastic articles, wherein the particulate material is introduced into the resin mix in a manner which substantially eliminates the severe abrasive effect such particulate material produces under conditions existing in prior methods due to flow through the various passages of the mixing head. The particulate material may constitute reinforcement for a plastic article, in which case short lengths of glass, carbon, graphite or other mineral or metal fibers and the like may be used. Alternatively, granular particulates such as carbon black, metal or mineral oxides, pigments, etc. may be incorporated for coloring the product, or increasing its resistance to actinic rays, or for imparting increased rigidity to the molded product, etc.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: December 22, 1981
    Assignee: The Upjohn Company
    Inventor: Robert D. Wingard
  • Patent number: 4304019
    Abstract: A tool for closing and opening buckles on ski boots comprising a body having a cavity including first and second spaced apart surfaces and being open at one end of the body to receive a buckle, the tool having an elongated lever attached to the body and extending in a direction generally opposite to the open end of the cavity.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: December 8, 1981
    Inventor: Gerard A. Sava
  • Patent number: 4300450
    Abstract: A printing press liquid circulation system including an anti-foaming device, the system being of the type wherein flow of liquid from a fountain pan to a reservoir is induced or suctioned through a return conduit by connecting the return conduit to a suction inlet of an aspirator. In order to reduce or eliminate the tendency of the aspirator to draw or suction air through the return conduit and, thus reduce or eliminate foaming in the system, the suction pressure in the return conduit is controlled to eliminate the suctioning of air through the return conduit.
    Type: Grant
    Filed: May 18, 1979
    Date of Patent: November 17, 1981
    Assignee: Baldwin-Gegenheimer Corporation
    Inventor: Charles R. Gasparrini
  • Patent number: 4299593
    Abstract: A technique is described for continuously detecting or measuring a gas such as hydrogen cyanide in a gas stream. The gas stream is passed in counterflow relationship with a well defined stream of gas absorbing reagent liquid in an absorption cell through which the reagent flows under gravity feed. The exposed reagent is passed through a heater in which the color of the reagent is developed. The reagent is passed through the heater at a constant regulated flow rate with a flow controller operative between the absorption cell and the heater to provide a consistent color development. A stable and consistent detection and measurement of the amount of hydrogen cyanide in the gas stream is obtained.
    Type: Grant
    Filed: April 20, 1979
    Date of Patent: November 10, 1981
    Assignee: The Upjohn Company
    Inventor: Robert B. Dopp
  • Patent number: 4298235
    Abstract: A bearing system fitted around a shaft of an isolator, comprising a shaft seal fitted around the shaft, the shaft seal comprising at least one flexible annular metal disc attached to the isolator frame, and a bearing fitted around the shaft at a location spaced from the shaft seal, the bearing comprising at least three individually removable bearing segments secured to a bearing mounting by means of at least one flexible annular diaphragm.
    Type: Grant
    Filed: October 3, 1979
    Date of Patent: November 3, 1981
    Assignee: Grovag Grossventiltechnik A.G.
    Inventor: Anton F. Squirrell
  • Patent number: 4292211
    Abstract: A fragrance dispersant composition for dispersing fragrance oil in an aqueous hard surface cleanser comprising a mixture of N(2-hydroxyethyl)acetamide, anionic surfactant capable of mixing with said N(2-hydroxyethyl)acetamide to form a homogeneous solution, and fragrance oil. The fragrance dispersant composition may be mixed with water and one or more detergents to formulate an aqueous hard surface cleanser.
    Type: Grant
    Filed: July 31, 1980
    Date of Patent: September 29, 1981
    Assignee: Shaw Mudge & Company
    Inventor: Justin Herman
  • Patent number: D261024
    Type: Grant
    Filed: January 24, 1980
    Date of Patent: September 29, 1981
    Inventor: Paul A. LaViolette
  • Patent number: D261377
    Type: Grant
    Filed: May 3, 1979
    Date of Patent: October 20, 1981
    Inventor: Benton H. Grant
  • Patent number: D261940
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: November 17, 1981
    Assignee: The Risdon Manufacturing Company
    Inventor: Thomas F. Holloway
  • Patent number: D261974
    Type: Grant
    Filed: September 12, 1979
    Date of Patent: November 24, 1981
    Inventor: E. Steven Pickman
  • Patent number: D262152
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: December 1, 1981
    Assignee: Risdon Corporation
    Inventor: Thomas F. Holloway
  • Patent number: D263502
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: March 23, 1982
    Inventor: John A. Tartaglia
  • Patent number: D266314
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: September 28, 1982
    Assignee: Clarks Limited
    Inventors: Noel J. Haring, Laurence A. Snook