Patents Assigned to Armstrong World Industries, Inc.
  • Wet-laying process for making liquid sealing gasket sheet materials
    Patent number: 5437767
    Abstract: A wet laying process for making fluid-sealing gasket sheet materials is described. The gasket materials seal particularly well against polar liquids. These gasketing sheets have from about 5 to about 20% fiber, and at least about 62% filler, and a reduced binder concentration, containing about 18% by weight of binder or less, allowing the binder to be reduced even to zero. The sheet must include at least about 3% by total dry weight of a gel-forming mineral filler. In addition to giving from good to very excellent seals against polar liquids, this gasketing also has good torque retention and creep resistance.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: August 1, 1995
    Assignee: Armstrong World Industries, Inc.
    Inventors: Nowaf Halout, Alexandra M. Kavoulakis, Ellen R. Romano
  • Ceramic veneer composite structure
    Patent number: 5437898
    Abstract: A print and fusion process is used to fabricate ceramic elements that are subsequently utilized to generate a composite including a fibrous mat and discrete ceramic elements. The composite may include a substrate and a flexible or rigid non-ceramic composition between the discrete ceramic elements and/or the substrate. A ceramic ink preferably partially penetrates the fibrous mat to form the discrete elements or a continuous layer.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: August 1, 1995
    Assignee: Armstrong World Industries, Inc.
    Inventors: John S. Forry, Thomas C. Simonton, William C. Welch, Jerome D. Wisnosky
  • Decorative elements for subceilings
    Patent number: 5421132
    Abstract: Miniature beams for easy installation onto a conventional inverted T-bar subceiling framework are disclosed. The beams are composed of a flat portion or web adapted to fit snugly against the T-bar rail, the web having two hooked arms that snap over the edges of the rail and a plurality of elements extending from the web that provides a decorative pattern when sighted from below.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: June 6, 1995
    Assignee: Armstrong World Industries, Inc.
    Inventors: Wesley T. K. Bischel, Joan V. Greenslade, Chester W. Hallett, Henry G. Stein
  • Method of applying a ceramic image to a complex ceramic article
    Patent number: 5418041
    Abstract: A ceramic ink is transferred to complex ceramic articles by a modified transfer process which allows 20% or greater of the surface area of the ceramic article to be printed. To adhere the ceramic ink to the ceramic articles, the surface of the ceramic article is sprayed with a thin layer of oil. After transfer of the ink design, residual poly vinyl alcohol is washed off of the article while the printed image is held in place by the insoluble precoated oil. The finished ceramic article has a 100% ceramic finish that is very durable.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: May 23, 1995
    Assignee: Armstrong World Industries, Inc.
    Inventors: Raymond C. Kent, Terry N. Tice, William C. Welch
  • Resiliently mounted accessible tile
    Patent number: 5417025
    Abstract: The invention is a panel mounting system which uses two parallel support members. The support members engage two opposite sides of the panel. Resilient means on one side of the panel keep the opposite side of the panel in engagement with the support member engaging that side of the panel.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: May 23, 1995
    Assignee: Armstrong World Industries, Inc.
    Inventors: Ernest B. Nute, James P. Rineer, Melvin H. Shaub
  • Method of producing phosphate ceramic pipe cladding
    Patent number: 5415824
    Abstract: A pipe cladding composition which is a phosphate ceramic permeating a non-woven fibrous network. The overall thickness of the sheet is between about 5 and about 20 mils. The phosphate ceramic permeates the fibrous network and extends beyond the fibrous network only up to a maximum thickness of about 3 mils across each side of the sheet. The sheets are prepared using wet reaction mixtures which produce phosphate ceramics. These reaction mixtures are mixed and pressed into the non-woven fibrous network which forms a wet sheet that is then cured to provide the cladding material.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: May 16, 1995
    Assignee: Armstrong World Industries, Inc.
    Inventors: Jeffery L. Barrall, Debra L. Morris, Carrielee Fidler
  • Ceramic veneer composite structure
    Patent number: 5411791
    Abstract: A print and fusion process is used to fabricate ceramic elements that are subsequently utilized to generate a composite including a fibrous mat and discrete ceramic elements. The composite may include a substrate and a flexible or rigid non-ceramic composition between the discrete ceramic elements and/or the substrate. A ceramic ink preferably partially penetrates the fibrous mat to form the discrete elements or a continuous layer.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: May 2, 1995
    Assignee: Armstrong World Industries, Inc.
    Inventors: John S. Forry, Thomas C. Simonton, William C. Welch, Jerome D. Wisnosky
  • Locking connection for suspended ceiling system
    Patent number: 5394669
    Abstract: A locking connection fastens two oppositely positioned cross runners perpendicular to another runner. Compressible tabs on the cross runners are inserted in slots of the other runner to fasten the three runners together. The tabs at one connection are positioned one above the other and the tab on one cross runner projects into a cutout of the opposite cross runner. Two cutouts on the opposite sides of each tab lock the runners together.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: March 7, 1995
    Assignee: Armstrong World Industries, Inc.
    Inventors: Chester W. Hallett, Carl K. McClure
  • Halogen-free resilient flooring
    Patent number: 5391612
    Abstract: A resilient flooring includes a halogen-free, filled, thermoplastic polymer composition. The composition includes a copolymer of ethylene/(meth)acrylic acid and a filler. The composition is substantially free of metal-containing stabilizers and liquid plasticizer, as well as, fibrous material and unsaturated elastomer. The composition may include a modifying resin such as a copolymer of ethylene/vinyl acetate.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: February 21, 1995
    Assignee: Armstrong World Industries, Inc.
    Inventor: Jeffrey Johnson
  • Fire-rated drywall suspension system
    Patent number: 5363622
    Abstract: A suspended grid system to support screw applied drywall ceilings. The system includes parallel rows of main runners suspended from the structural ceiling. Cross channel members are attached in parallel rows at right angles to the main runners. Drywall is screw attached to the lower surface of the cross channel members. Connectors are formed on the ends of the cross channel members which engage and lock to the main runners. Each such connector uses two upper latches and two lower tongue shaped stop shoulders. The lower stop shoulders will collapse in a controlled manner to relieve excessive compression as would be created from thermal expansion. The main runner will also provide a means for relieving thermal expansion.
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: November 15, 1994
    Assignee: Armstrong World Industries, Inc.
    Inventor: Gale E. Sauer
  • Composite tile with modified adhesive layer
    Patent number: 5362560
    Abstract: A rigid tile has a flexible interlocking edge configuration and a pressure-sensitive adhesive layer. To increase the ease of installation, an inert powder is dusted on the periphery of the adhesive layer.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: November 8, 1994
    Assignee: Armstrong World Industries, Inc.
    Inventors: Wendell A. Ehrhart, Raymond C. Kent
  • Locking clip
    Patent number: 5355648
    Abstract: A corner clip is provided on the edge of a ceiling panel and the end(s) of the clip space the panel from the ceiling runner vertical web. The clip can be a right angle shape having a downwardly projecting portion which fits into a recess in the back of the ceiling panel. The clip can be a disc shape having a downwardly projecting portion which fits into a recess in the back of the ceiling panel.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: October 18, 1994
    Assignee: Armstrong World Industries, Inc.
    Inventors: Martin L. Graver, James F. Mathis
  • Ceiling clip
    Patent number: 5355646
    Abstract: A clip for retaining a metal ceiling panel in position relative a ceiling runner. The clip will fasten to the horizontal flange of a ceiling runner or the lower end of the wall molding supporting a cut edge of a metal ceiling panel adjacent a wall structure.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: October 18, 1994
    Assignee: Armstrong World Industries, Inc.
    Inventors: Wesley T. K. Bischel, Brian E. Witmyer
  • Lanced fire-rated runner
    Patent number: 5349803
    Abstract: The grid member is formed of sheet metal and has an inverted T-shape with a bulb at the top, a double thickness central web and oppositely disposed flanges at the bottom. To achieve controlled expansion, an extended angular lance is cut at the top of the bulb. Further, staggered cutouts are placed in the two thicknesses which make up the web. By staggering the cutout areas of adjacent web layers, the overall web strength is maintained. These web cutouts and the lance at the top of the bulb cooperate upon thermal expansion, causing the bottom flanges to buckle down, and the web and bulb to separate laterally and fold. The folded web configuration directed by the staggered cutout pattern will maintain longitudinal rigidity.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: September 27, 1994
    Assignee: Armstrong World Industries, Inc.
    Inventor: Ernest B. Nute, Jr.
  • Prenotched fire-rated runner
    Patent number: 5347783
    Abstract: The grid member is formed of sheet metal and has an inverted T-shape with a bulb at the top, a double thickness central web and oppositely disposed flanges at the bottom. To achieve controlled expansion, two parallel lances are cut along opposite sides of the bulb near the top of the bulb. No metal is removed at this area of maximum bending stress. Further, staggered cutouts are placed in the two thicknesses which make up the web. By staggering the cutout areas of adjacent web layers, the overall web strength is maintained. These web cutouts and the lance at the top of the bulb cooperate upon thermal expansion, causing the bottom flanges to buckle down, and the web and sides of the bulb to separate laterally and fold, and the top of the bulb to buckle up. The folded web configuration directed by the staggered cutout pattern will maintain longitudinal rigidity.
    Type: Grant
    Filed: March 4, 1993
    Date of Patent: September 20, 1994
    Assignee: Armstrong World Industries, Inc.
    Inventors: Sandor A. Frecska, Ernest B. Nute, Jr., Gale E. Sauer
  • Electrographic process for producing an image with depth perception and resulting structure
    Patent number: 5347296
    Abstract: This invention involves a process for producing in an electrographic system a product having an image depth perception. The process includes dispensing in a system a first dielectric layer and electrographically imaging this layer and developing the image. A second dielectric layer is subsequently dispersed in the system, imaged and developed. A preselected plurality of dielectric layers may be imaged and developed. These developed layers are superimposed and adhered together to form a multilayered substrate having a depth perception. The layers can be superimposed, adhered together and overcoated either before or after separation from the system.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: September 13, 1994
    Assignee: Armstrong World Industries, Inc.
    Inventors: Walter J. Lewicki, Jr., John H. Bowers
  • Method and apparatus for drying wood
    Patent number: 5345695
    Abstract: Pieces of wood to be dried are stacked in an oven with a space provided between horizontal layers of the wood to permit air flow between the pieces of wood. Means providing the spacing are channel-shaped, non-moisture absorbing strips of metal or plastic approximately 3/4 inch square. The air for drying the wood will travel down the channel of the strips to help in the drying of the wood.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: September 13, 1994
    Assignee: Armstrong World Industries, Inc.
    Inventor: Auston B. Graham
  • Cover unit for ceiling rails
    Patent number: D361134
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: August 8, 1995
    Assignee: Armstrong World Industries, Inc.
    Inventor: Wesley T. K. Bischel
  • Cover unit for ceiling rails
    Patent number: D361135
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: August 8, 1995
    Assignee: Armstrong World Industries, Inc.
    Inventor: Wesley T. K. Bischel
  • Cover unit for ceiling rails
    Patent number: D361388
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: August 15, 1995
    Assignee: Armstrong World Industries, Inc.
    Inventor: Wesley T. K. Bischel