(19)
(11) EP 0 978 602 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.10.2000 Bulletin 2000/42

(43) Date of publication A2:
09.02.2000 Bulletin 2000/06

(21) Application number: 99115279.4

(22) Date of filing: 02.08.1999
(51) International Patent Classification (IPC)7: E04B 9/04, B32B 5/26
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 07.08.1998 US 131153

(71) Applicant: Armstrong World Industries, Inc.
Lancaster Pennsylvania 17603 (US)

(72) Inventors:
  • Frantz, William H,
    Elizabethtown, PA 17022 (US)
  • Felegi, John, Jr.
    Lancaster,PA 17603 (US)
  • Patel, Kartik A,
    Landisville, PA 17538 (US)
  • Wiker, Anthony L,
    Lancaster, PA 17601 (US)

(74) Representative: Hofstetter, Alfons J., Dr.rer.nat. et al
Hofstetter,Schurack & Skora Balanstrasse 57
81541 München
81541 München (DE)

   


(54) Reinforced ceiling panels


(57) The disclosure is for laminated reinforced fiber panels constructed of materials which would not be self supporting as individual layers. The panel is constructed with the center core structure (12) being a flexible fiber mat and the two outside reinforcing layers (14,16) adding just sufficient strength to prevent the entire panel from sagging. The reinforcing layers can be scrim, metal foil, metal foil and paper laminate, or mineral board, and they can be embossed or corrugated to add strength without additional material and weight.






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