Manufacture of Cable Bolts
AssigneeFCI Holdings Delaware, Inc.
InventorsJeremy Ross Arnot, Kenneth Sargood
Life of this patent
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Abstract
A cable bolt comprising a plurality of flexible steel filaments formed around a central member, the cable bolt having spaced bulbous portions along the length of the bolt each bulbous portion defining a cavity containing a segmented ring that surrounds the central member to engage the filaments of the bulbous portion.
Claims9
A cable bolt comprising a plurality of flexible steel filaments formed around a central member, the cable bolt having spaced bulbous portions along the length of the bolt each bulbous portion defining a cavity containing a segmented ring that surrounds the central member to engage the filaments of the bulbous portion.
An apparatus for forming bulbs in a cable having twisted flexible steel filaments over a central member, the apparatus comprising:
- a bulbing assembly releasably engagable with said cable, said assembly being operative to force the filaments apart without plastically deforming the filaments;
- and
- an inserting device operative to insert a spacer through the parted filaments to sit between the filaments and the central member.
Dependencies are inferred from the claim text.