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1. (WO1992009433) FIRE RESISTANT REPAIR PATCH AND METHOD
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009433 International Application No.: PCT/US1991/002861
Publication Date: 11.06.1992 International Filing Date: 25.04.1991
Chapter 2 Demand Filed: 23.06.1992
IPC:
B29C 73/10 (2006.01) ,B64F 5/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
73
Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D186
04
using preformed elements
10
using patches sealing on the surface of the article
B PERFORMING OPERATIONS; TRANSPORTING
64
AIRCRAFT; AVIATION; COSMONAUTICS
F
GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS
5
Designing, manufacturing, assembling, cleaning, maintaining, or repairing aircraft, not otherwise provided for
Applicants:
AKRO-FIREGUARD PRODUCTS, INC. [US/US]; # 6 Wycklow Overland Park, KS 66207, US
Inventors:
ROUDEBUSH, Thomas; US
HAXTON, Thomas; US
CLARK, Bill; US
MCGEARY, Robert, L.; US
Agent:
ROSS, Taylor, J.; Kokjer, Kircher, Bradley, Wharton, Bowman & Johnson 2414 Commerce Tower 911 Main Street Kansas City, MO 64105-2074, US
Priority Data:
617,34223.11.1990US
Title (EN) FIRE RESISTANT REPAIR PATCH AND METHOD
(FR) PROCEDE ET PIECE DE REPARATION IGNIFUGE
Abstract:
(EN) A fire resistant patch for aircraft composite cargo bay liners is disclosed. The patch includes a base member (14) consisting of at least one inner sheet of woven fiberglass (22) with outer layers of flame resistant plastic (24). The base member (14) is applied to the liner (10) to cover the damaged area (12) with a flame retardant resin (38). Base member (14) is held in place by partial curing of the resin (38) or by using strips of flame resistant tape (40). A scrim (26) consisting of a fiberglass latice netting with a periphery larger than base member (14) and having a bottom side coated with a pressure sensitive adhesive (34) is applied over the base member (14). A flame resistant epoxy resin (42) is then applied over the scrim (26) so as to be continuous and extend beyond the scrim (26) periphery. The cured epoxy (42) provides strength and flame resistance.
(FR) Pièce ignifuge pour garniture composite de baie de chargement d'aéronef. La pièce comprend un élément de base (14) consistant en au moins une feuille interne de fibres de verre tissées (22) avec des couches externes de plastique ignifuge (24). L'élément de base (14) est appliqué sur la garniture (10) pour recouvrir la zone endommagée (12) avec une résine ignifuge (38). L'élément de base (14) est maintenu en place par polymérisation partielle de la résine (38) ou en utilisant des morceaux d'une bande ignifuge (40). Un tissu non tissé à couches superposées biaises (26) consistant en un canevas de fibres de verre avec une périphérie plus large que l'élément de base (14) et ayant une face inférieure revêtue d'un adhésif auto-collant (34) est appliquée sur l'élément de base (14). Une résine époxyde ignifuge (42) est ensuite appliquée sur le tissu non tissé à couches superposées biaises (26) de manière continue et s'étendant au delà de la périphérie du tissu non tissé à couches superposées biaises (26). La résine époxyde polymérisée (42) procure résistance mécanique et résistance au feu.
Designated States: AU, BR, CA, JP, KR, SU
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0558689JPH06505205AU1992012622