# US 5,699,572 A · Combination cable spreader and cable driver > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,699,572 A - Document ID: US5699572A - Status: Granted - Kind: A - Application number: 08/645,840 - Filed: 1996-05-14 - Granted: 1997-12-23 - Earliest claimed: 1994-12-20 - Assignees: Jennmar Corporation - Inventors: Brian R. Castle; James J. Scott; John G. Oldsen - Web page: https://patentgrep.com/patent/US5699572A ## CPC - E21D 11/006: {Lining anchored in the rock (setting anchoring-bolts E21D20/00; anchoring-bolts E21D21/00)} - E21D 20/00: Setting anchoring-bolts (anchoring bolts for shafts, tunnels or galleries E21D21/00; means for anchoring structural elements or bulkheads specially adapted to foundation engineering E02D5/74; dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose F16B13/00) - E21D 20/025: {Grouting with organic components, e.g. resin} - E21D 21/006: {Anchoring-bolts made of cables or wires} - E21D: SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS (soil-conditioning or soil-stabilising materials C09K17/00; drilling or cutting machines for mining or quarrying E21C; safety devices, transport, rescue, ventilation or drainage E21F) ## Abstract The present invention provides a cable driving wrench assembly for thrusting and rotating a multi-strand cable mine rock anchor. The wrench assembly includes a wrench body having an open interior and a plurality of apertures in the wrench body extending into the open interior. Each aperture is adapted to receive an individual strand of the multi-strand cable when the individual strand has been separated from the remaining strands of the cable at least at one end of the cable. The open interior of the wrench body is adapted to receive one end of the cable through the plurality of apertures. A mechanism for thrusting and rotating the wrench body is attached thereto. The present invention additionally includes a cable opening tool for opening the strands of a multi-strand cable. The cable opening tool includes a rotatable tool body and a socket formed in the tool body. The socket is engageable with one end of the multi-strand cable to separate the individual strands from each other at one end of the cable upon rotation of the tool body. ## Claims ### Claim 1 A cable driving wrench assembly for rotating a multi-strand cable rock anchor, said wrench assembly comprising: a hollow, tubular wrench body having a first closed end, a second end spaced from said first closed end and an open interior; a plurality of apertures in said second end of said wrench body extending into said open interior, each said aperture adapted to receive an individual strand of the multi-strand cable of the cable bolt when the individual strand is separated from the remaining strands of the cable at least at one end of the cable, and wherein said open interior of said wrench body is adapted to receive one end of the cable through said plurality of apertures; and a means for thrusting and rotating said wrench body attached to said wrench body. ### Claim 2 (depends on 1) The wrench assembly of claim 1 wherein said plurality of apertures includes six peripherally spaced apertures and a centrally positioned aperture. ### Claim 3 (depends on 1) The wrench assembly of claim 1 wherein said means for thrusting and rotating said wrench body includes a drive stub attached to said closed end of said wrench body. ### Claim 4 (depends on 1) The wrench assembly of claim 1 further including a cable opening tool having a socket formed in a rotatable tool body, said socket engageable with one end of the multi-strand cable to separate the individual strands from each other at one end of the cable upon rotation of said tool body. ### Claim 5 (depends on 4) The wrench assembly of claim 4 wherein said cable opening tool is attached to said wrench body. ### Claim 6 (depends on 5) The wrench assembly of claim 5 wherein said tool body is attached to said second end of said wrench body, and said socket extends through said tool body and is aligned with one of said plurality of apertures in said second end. ### Claim 7 (depends on 6) The wrench assembly of claim 6 wherein at least an upper portion of said socket includes six planar engaging faces. ### Claim 8 (depends on 6) The wrench assembly of claim 6 wherein said socket includes a borehole extending into said cable opening tool and a plurality of cable engaging projections extending into said borehole, each said projection adapted to be received between adjacent peripheral strands of the multi-strand cable. ### Claim 9 (depends on 8) The wrench assembly of claim 8 wherein said borehole and said socket are formed by three intersecting slots in said tool body. ### Claim 10 (depends on 4) The wrench assembly of claim 4 wherein at least an upper portion of said socket includes six planar cable engaging faces. ### Claim 11 (depends on 4) The wrench assembly of claim 4 wherein said socket includes a borehole extending into said tool body and a plurality of cable engaging projections extending into said borehole, each said projection adapted to be received between adjacent peripheral strands of the multi-strand cable. ### Claim 12 (depends on 11) The wrench assembly of claim 11 wherein said borehole and said projections are formed by three intersecting slots extending into said tool body.