Invention Grant
- Patent Title: Chuck with improved torque transmission and centralization
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Application No.: US18502900Application Date: 2023-11-06
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Publication No.: US12187562B2Publication Date: 2025-01-07
- Inventor: Markku Ronnila , Ismo Kervinen , Andrei Klimenko
- Applicant: Sonoco Development, Inc.
- Applicant Address: US SC Hartsville
- Assignee: Sonoco Development, Inc.
- Current Assignee: Sonoco Development, Inc.
- Current Assignee Address: US SC Hartsville
- Agency: von Briesen & Roper, s.c.
- Main IPC: B65H18/10
- IPC: B65H18/10 ; B65H16/02 ; B65H16/10 ; B65H18/02
Abstract:
An expansible chuck for holding hollow cylindrical cores used for winding and unwinding sheet material. A portion of the chuck body nearest the flange is stepped up so that the diameter of the chuck near the flange is slightly larger than the diameter of the rest of the chuck. The stepped up portion centers the chuck within the core which helps the expanding elements to uniformly grip the core.
Public/Granted literature
- US20240067479A1 CHUCK WITH IMPROVED TORQUE TRANSMISSION AND CENTRALIZATION Public/Granted day:2024-02-29
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