# US 2025/0144751 A1 · Method and apparatus for plasma cable cutting > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0144751 A1 - Document ID: US20250144751A1 - Status: Published application - Kind: A1 - Application number: 18/936,632 - Filed: 2024-11-04 - Published: 2025-05-08 - Earliest claimed: 2023-11-03 - Inventors: Felix SORKIN - Web page: https://patentgrep.com/patent/US20250144751A1 ## CPC - B23K 37/0241: {Attachments between the welding or cutting element and the carriage} - B23K 10/00: Welding or cutting by means of a plasma - B23K 37/04: for holding or positioning work - B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM ## Abstract An apparatus may include a bracket having a post-tensioned cable tunnel and a pair of tabs configured to receive a post-tensioned cable and to prevent rotation of the bracket relative to the post-tensioned cable. An apparatus may include a plasma torch attachment member configured to releasably engage with the head of a plasma cutting torch of the type having a plasma cutting tip attached thereto, and to rotatably attach to the bracket such that the plasma cutting tip may be moved in an arc relative to the post-tensioned cable. ## Claims ### Claim 1 A plasma torch attachment device comprising: a bracket comprising a proximal end and a distal end; wherein the proximal end comprises a plasma torch attachment member to engage with a plasma torch cutting head; and wherein the distal end comprises a releasably engageable positioning device to releasably hold a cable to be cut. ### Claim 2 An apparatus for positioning a plasma cutting torch to cut off a free end of a post-tensioned cable embedded in a concrete body, said apparatus comprising: a bracket having a post-tensioned cable tunnel and a pair of tabs configured to receive the post-tensioned cable and to prevent rotation of the bracket relative to the post-tensioned cable; and a plasma torch attachment member configured to: releasably engage with a head of a plasma cutting torch of the type having a plasma cutting tip attached thereto; and rotatably attach to the bracket such that the plasma cutting tip may be moved in an arc relative to the post-tensioned cable. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein each tab of the pair of tabs has an exterior sloping face configured to provide a force for flexing the pair of tabs apart when the bracket is pushed against the post-tensioned cable. ### Claim 4 (depends on 2) The apparatus of claim 2, wherein each tab of the pair of tabs has an interior face configured to create a retention force when the post-tensioned cable is seated in the post-tensioned cable tunnel. ### Claim 5 (depends on 4) The apparatus of claim 4, wherein the pair of tabs is further configured to allow the bracket to slide along a longitudinal axis of the post-tensioned cable. ### Claim 6 (depends on 2) The apparatus of claim 2, wherein a distal surface of the bracket is configured to abut a proximal surface of a plurality of cable gripping wedges. ### Claim 7 (depends on 2) The apparatus of claim 2, wherein the arc of the plasma cutting tip is configured to be sufficient to cut a full diameter of the post-tensioned cable without moving the bracket. ### Claim 8 (depends on 2) The apparatus of claim 2, wherein the bracket is configured to position the plasma cutting tip a set distance from a plurality of cable gripping wedges. ### Claim 9 (depends on 2) The apparatus of claim 2, wherein the bracket is configured to position the plasma cutting tip a minimum distance from a circumferential surface of the post-tensioned cable. ### Claim 10 A method for cutting a tensioned cable comprising: attaching a proximal end of a bracket to a plasma torch cutting head and attaching a distal end of a bracket to the tensioned cable to be cut; and cutting the tensioned cable with the plasma torch cutting head; wherein the proximal end of the bracket comprisesa plasma torch attachment member to engage with the plasma torch cutting head; and wherein the distal end of the bracket comprises a releasably engageable positioning device to releasably hold the tensioned cable to be cut. ### Claim 11 A method for utilizing a plasma cutting torch to cut off a free end of a post-tensioned cable embedded in a concrete structure, said method comprising: pushing a plasma cutting apparatus onto the post-tensioned cable, the plasma cutting apparatus comprising: a bracket having a post-tensioned cable tunnel and a pair of tabs configured to receive the post-tensioned cable and to prevent rotation of the bracket relative to the post-tensioned cable; and a plasma torch attachment member configured to releasably engage with a head of a plasma cutting torch of the type having a plasma cutting tip attached thereto and rotatably attach to the bracket such that the plasma cutting tip may be moved in an arc relative to the post-tensioned cable; positioning the bracket along a longitudinal axis of the post-tensioned cable, such positioning defining a cutting point on the post-tensioned cable; and rotating the plasma cutting torch as the torch is engaged to cut a full diameter of the post-tensioned cable. ### Claim 12 (depends on 11) The method of claim 11, wherein each tab of the pair of tabs has an exterior sloping face configured to provide a force for flexing the pair of tabs apart when the bracket is pushed against the post-tensioned cable. ### Claim 13 (depends on 11) The method of claim 11, wherein each tab of the pair of tabs has an interior face configured to create a retention force when the post-tensioned cable is seated in the post-tensioned cable tunnel. ### Claim 14 (depends on 13) The method of claim 13, wherein the pair of tabs is further configured to allow the bracket to slide along a longitudinal axis of the post-tensioned cable. ### Claim 15 (depends on 11) The method of claim 11, wherein a distal surface of the bracket is configured to abut a proximal surface of a plurality of cable gripping wedges. ### Claim 16 (depends on 11) The method of claim 11, wherein the arc of the plasma cutting tip is configured to be sufficient to cut the full diameter of the post-tensioned cable without moving the bracket. ### Claim 17 (depends on 11) The method of claim 11, wherein the bracket is configured to position the plasma cutting tip a set distance from a plurality of cable gripping wedges. ### Claim 18 (depends on 11) The method of claim 11, wherein the bracket is configured to position the plasma cutting tip a minimum distance from a circumferential surface of the post-tensioned cable.