Patents Represented by Attorney James W. Grace

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  • Apparatus for making an offset laminated roofing shingle
    Patent number: 4729814
    Abstract: This invention provides a process and apparatus which automatically and in a continuous and uninterrupted manner laminates a narrow strip of bituminous coated glass mat to the bottom side of a coated glass mat, cuts the laminated product to produce a laminate having cut-out areas between remaining tabs and then adheres thin strips of coated glass mat across the tabs to underlie the tabs and the cut-out areas. The final shingle is made from a single glass mat which is processed into a three level shingle, each level being made of a portion of the original glass mat.
    Type: Grant
    Filed: August 14, 1986
    Date of Patent: March 8, 1988
    Assignee: The Celotex Corporation
    Inventors: Robert E. Jennus, Dale P. Major
  • Polyoxyalkylene/unsaturated diester reaction product for cellular foam stabilization
    Patent number: 4729850
    Abstract: Polyoxyalkylene surfactants for cellular foams can be prepared by reacting a polyoxyalkylene adduct and an esterified unsaturated dibasic acid in the presence of a free-radical initiator.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: March 8, 1988
    Assignee: The Celotex Corporation
    Inventor: Richard L. Frentzel
  • Polyester polyols modified by low molecular weight glycols and cellular foams therefrom
    Patent number: 4714717
    Abstract: A polyester polyol suitable for use in a foam-forming reaction with an organic polyisocyanate in the manufacture of a polyurethane or polyisocyanurate foam, the polyester polyol being the reaction product of polycarboxylic acid and polyol components, wherein the polyol component comprises(a) at least one alkylene glycol of the formula:HO--R.sub.1 --OHwherein R.sub.1 is a straight or branched chain alkylene group having two to five carbon atoms, and is unsubstituted or substituted by at least one member selected from the group consisting of halogen, hydroxy, nitro and amino,(b) at least one higher alkylene glycol, and(c) optionally at least one additional polyol.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: December 22, 1987
    Assignee: Jim Walter Resources, Inc.
    Inventors: Michael E. Londrigan, Michael J. Skowronski
  • Vinyl siding
    Patent number: 4712351
    Abstract: This invention relates to siding panel units in which an area near fastener receiving slots has an isolation means disposed in a U-shaped configuration partially around at least some of said fastener receiving slots and said isolation means comprises vertical stress relief means at each side of at least some of said fastener receiving slots and an elongated slot lying below corresponding ones of said fastener receiving slots and spanning the distance between said vertical stress relief means.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: December 15, 1987
    Assignee: The Celotex Corporation
    Inventor: David P. Kasprzak
  • Polyisocyanurate foams from digestion products of polyalkylene terephthalate polymers and polyols
    Patent number: 4711912
    Abstract: Polyisocyanurate foams are prepared by reacting together an organic polyisocyanate, a blowing agent, a trimerization catalyst, and a minor amount of a polyol mixture prepared by digesting polyalkylene terephthalate, particularly polyethylene terephthalate, with a polyol, especially a glycol. Laminates of such foams exhibit a high degree of fire resistance, low smoke evolution on combustion, low foam friability and high compressive strength.
    Type: Grant
    Filed: April 29, 1982
    Date of Patent: December 8, 1987
    Assignee: The Celotex Corporation
    Inventors: Scott C. Snider, Alberto DeLeon
  • Catalyst mixtures for polyisocyanurate foam
    Patent number: 4710521
    Abstract: Rigid polyisocyanurate foams are prepared by (a) bringing together on a continuously advancing conveyor an organic polyisocyanate, a minor amount of a polyester polyol, a blowing agent and, in an organic solvent, a catalyst mixture comprising: (i) a salt of a low molecular weight carboxylic acid selected from the group consisting of an alkali metal salt and an alkaline earth metal salt and mixtures thereof, and (ii) a tertiary amine, the amount of the salt of the low molecular weight carboxylic acid being sufficient and the molecular weight of the carboxylic acid of the salt being sufficiently low to provide a firm foam having a non-friable surface, and (b) foaming the foam-forming mixture.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: December 1, 1987
    Assignee: The Celotex Corporation
    Inventors: Thomas G. Soukup, John P. Oliver
  • Friction controlled window balance
    Patent number: 4697304
    Abstract: This invention relates to a window sash balance of the coil spring and cord type in which a friction drag element is in frictional contact with multiple lengths of loops of said cord.
    Type: Grant
    Filed: July 11, 1986
    Date of Patent: October 6, 1987
    Assignee: The Celotex Corporation
    Inventor: Bruce L. Overgard
  • Wet-end molded product
    Patent number: 4698257
    Abstract: An assembly of individual, decoratively embossed fibrous boards having a well-defined, repeating surface pattern, each board of said assembly:(a) being formed by a process comprising the steps of:(i) forming a wet mat of entangled mineral fibers;(ii) pressure molding said fibrous mat while it is still wet to create a decorative textured surface thereon; and(iii) drying said board; and(b) having a higher strength than a board composed of substantially the same amounts of the same ingredients but produced by a dry embossing process.
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: October 6, 1987
    Assignee: The Celotex Corporation
    Inventor: John D. Goll
  • Polyisocyanurate foams derived from oxypropylated polyols and insulating structures therefrom
    Patent number: 4692477
    Abstract: Rigid polyisocyanurate foams are prepared by reacting together an organic polyisocyanate, a blowing agent, a trimerization catalyst, and a minor amount of a polyol, the polyol comprising a sufficient proportion of at least one polyoxyalkylene polyol having (i) terminal oxypropylene oxide blocks, (ii) a molecular weight of from about 300 to 3000, and (iii) an average hydroxyl functionality of from about 2 to 5 to form a foamed polyisocyanurate whose gel time is greater than about 70 seconds and friability is less than about 20 percent, as measured by the ASTM C-421 friability test. Laminates of such foams exhibit a high degree of fire resistance, low foam friability and good facer adhesion.
    Type: Grant
    Filed: May 15, 1986
    Date of Patent: September 8, 1987
    Assignee: The Celotex Corporation
    Inventor: Charles E. Jacobina
  • Mine stopping caulk
    Patent number: 4687790
    Abstract: A process for sealing geological formations and mine stoppings by applying to these substrates an aqueous, non-cementitious caulk composition comprising an alkali metal silicate; filler material including at least one silica product or silicate other than an alkali metal silicate; a water-soluble or water-dispersible polymer modifier; and water, and allowing the caulk composition to dry to form an air flow resistant seal on the substrates. A highly satisfactory polymeric modifier is used in the form of a polymer emulsion, such as an emulsion of a self-plasticizing acrylic polymer having a low Tg.
    Type: Grant
    Filed: June 4, 1986
    Date of Patent: August 18, 1987
    Assignee: The Celotex Corporation
    Inventor: Gregory Andreichuk
  • Large deflection pipe coupling
    Patent number: 4685705
    Abstract: This invention pertains to a pipe joint which allows greater joint deflection by the use of a bell stub between a pair of coupled pipes. The bell stub has a bell contour inside and a plain end contour outside.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: August 11, 1987
    Assignee: United States Pipe and Foundry Company
    Inventor: Lawrence S. Jones
  • Restrained pipe joint
    Patent number: 4660866
    Abstract: The invention concerns pipe joints in which an improved locking segment has an outwardly extending protrusion which is adapted to abut a circumferential wall in the bell end of a pipe which telescopically receives a second pipe.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: April 28, 1987
    Assignee: United States Pipe and Foundry Company
    Inventors: Lawrence S. Jones, Billy J. Battle
  • Reaction products of terephthalic acid residues and polycarboxylic acid-containing polyols and polymeric foams obtained therefrom
    Patent number: 4652591
    Abstract: A polyester polyol mixture is prepared by reacting a polycarboxylic acid component-containing polyol with a terephthalic acid residue, wherein the polycarboxylic acid component has ring units with two ##STR1## groups on adjacent or alternate ring positions, the ring unit content of the polycarboxylic acid component being sufficient for viscosity reduction of the polyester polyol mixture. The polyester polyol mixture is useful in the preparation of cellular foam materials, particularly polyisocyanurate and polyurethane foams, and laminates thereof.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: March 24, 1987
    Assignee: Jim Walter Resources, Inc.
    Inventor: Michael E. Londrigan
  • Balance assembly for a window
    Patent number: 4642845
    Abstract: This invention relates to a balance assembly for windows in which a gas pressurized piston and cylinder device with pulley wheels at each end acts as a balance element for the windows.
    Type: Grant
    Filed: July 8, 1985
    Date of Patent: February 17, 1987
    Assignee: The Celotex Corporation
    Inventor: Gary J. Marshik
  • Binder composition for manufacture of fiberboard
    Patent number: 4609513
    Abstract: A binder for use in the preparation of a synthetic board from cellulosic and/or lignocellulosic material comprising an organic polyisocyanate and a mixture of reactive hydrogen-containing compounds having an average of more than one reactive hydrogen atom per molecule, the mixture containing an ester and/or an amide having a hydrocarbon content sufficient to bring about enhanced board release in the board-forming process and to contribute to superior moisture resistance in the finished board.
    Type: Grant
    Filed: August 15, 1984
    Date of Patent: September 2, 1986
    Assignee: Jim Walter Research Corp.
    Inventor: Michael G. Israel
  • Wet-end molding method and molded product
    Patent number: 4608108
    Abstract: A method for producing a fibrous board having a decorative, textured surface comprising the steps of:(a) forming a wet mat of entangled mineral fibers;(b) pressure molding said fibrous mat while it is still wet to create a decorative textured surface thereon; and(c) drying said board.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: August 26, 1986
    Assignee: The Celotex Corporation
    Inventor: John D. Goll
  • Extensible line brattice
    Patent number: 4607568
    Abstract: This invention pertains to an extensible line brattice which comprises a track system and an extensible brattice frame with an attached brattice cloth cover mounted on said track system for extension into an unprotected portion of a mine passageway.
    Type: Grant
    Filed: August 7, 1985
    Date of Patent: August 26, 1986
    Assignee: Jim Walter Resources, Inc.
    Inventors: George R. Hill, Larry C. Jordan
  • Mine stopping sealant
    Patent number: 4607066
    Abstract: A process for coating geological formations and mine stoppings by applying to these substrates an aqueous, non-cementitious sealant composition comprising a water-soluble or water-dispersible polymeric binder, filler material and water, and allowing the sealant composition to dry to form an air flow resistant coating on the substrates. A highly satisfactory polymeric binder is used in the form of a polymer emulsion, such as an emulsion of an acrylic polymer having a low Tg and being sufficiently plasticized to provide a coating having prolonged air flow resistance.
    Type: Grant
    Filed: May 30, 1985
    Date of Patent: August 19, 1986
    Assignee: The Celotex Corporation
    Inventors: Leon F. Barry, James A. Berry
  • Mine stopping caulk
    Patent number: 4596838
    Abstract: A process for sealing geological formations and mine stoppings by applying to these substrates an aqueous, non-cementitious caulk composition comprising an alkali metal silicate; filler material including at least one silica product or silicate other than an alkali metal silicate; a water-soluble or water-dispersible acrylic polymer modifier; and water, and allowing the caulk composition to dry to form an air flow resistant seal on the substrates. A highly satisfactory polymeric modifier is used in the form of a polymer emulsion, such as an emulsion of a self-plasticizing acrylic polymer having a low Tg.
    Type: Grant
    Filed: May 30, 1985
    Date of Patent: June 24, 1986
    Assignee: The Celotex Corporation
    Inventor: Gregory Andreichuk
  • Apparatus for depositing granules on a moving sheet
    Patent number: 4583486
    Abstract: The present invention relates to an apparatus in which a perforated belt travels across to a moving sheet upon which granules are deposited through holes in the belt.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: April 22, 1986
    Assignee: The Celotex Corporation
    Inventor: John A. Miller