ATBE........FRGB..........SE......................R0379388EUROPEAN PATENT APPLICATIONA319910313EP90300610.419900122enenen58889519890123CA19910313199111199007251990305 5E 21D 21/00 AdeHohler KabelankerenHollow cable boltfrBoulon d'ancrage creux en câblesINCO LIMITED00204551P2181/EP5/697Royal Trust Tower Toronto-Dominion CentreToronto Ontario, M5K 1N4CAMalkoski, Michael Langford102 Cross StreetLively, Ontario P3E 2E0CAHedley, Nicholas James Matthewet al00046412Stephenson Harwood One, St. Paul's ChurchyardLondon EC4M 8SHGBATBEFRGBSE19910313199111

A hollow cable bolt having a central tube (12) circumscribed by a plurality of wound wires (14). The bolt is inserted into a hole (16) and grout (22) is pumped into the bore of the tube. The grout exits the bolt and flows within the annulus formed between the hole and the bolt.