B65H 75/242
Expansible spindles, mandrels or chucks
Official title: {Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages}
B65H75/242 (Expansible spindles, mandrels or chucks) appears on 427 US grants and 271 published applications in this corpus.
Search patents in B65H- Granted patents
- 427
- Published applications
- 271
- Assignees
- 255
- Inventors
- 737
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 6 | 0 |
| 1978 | 13 | 0 |
| 1979 | 13 | 0 |
| 1980 | 10 | 0 |
| 1981 | 9 | 0 |
| 1982 | 8 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 10 | 0 |
| 1988 | 6 | 0 |
| 1989 | 11 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 9 | 0 |
| 1997 | 12 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 7 | 3 |
| 2002 | 9 | 4 |
| 2003 | 3 | 3 |
| 2004 | 5 | 7 |
| 2005 | 2 | 6 |
| 2006 | 6 | 9 |
| 2007 | 4 | 9 |
| 2008 | 4 | 8 |
| 2009 | 5 | 9 |
| 2010 | 3 | 4 |
| 2011 | 6 | 7 |
| 2012 | 5 | 13 |
| 2013 | 3 | 8 |
| 2014 | 8 | 11 |
| 2015 | 10 | 8 |
| 2016 | 7 | 19 |
| 2017 | 13 | 12 |
| 2018 | 12 | 16 |
| 2019 | 14 | 15 |
| 2020 | 19 | 13 |
| 2021 | 23 | 23 |
| 2022 | 11 | 7 |
| 2023 | 12 | 23 |
| 2024 | 16 | 15 |
| 2025 | 12 | 12 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B65H 75/248Expansion caused by actuator movable in axial direction138
- B65H 75/243Actuated by use of a fluid121
- B65H 75/245By deformation of an elastic or flexible material93
- B65H 75/246Expansion caused by relative rotation around the supporting spindle or core axis70
- B65H 75/249Expansion caused by actuator movable in direction perpendicular to or about the12
- B65H 75/2495Including plural segments or spokes which are individually adjustable8
Recent patents
- Apparatus and method for packaging wire or cable in a barrel or drum container16 Jun 2026US 12,654,980 B1Encore Wire Corporation
- Surface rewinder with center assist and belt and winding drum forming a winding nest14 Apr 2026US 12,600,590 B2BW Converting, Inc.
- Ribbon take-up hub for a printer17 Mar 2026US 12,576,660 B2Hand Held Products, Inc.
- Roller for supporting materials10 Mar 2026US 12,570,491 B2LG Energy Solution, Ltd.
- Systems and methods for wrapping coils3 Feb 2026US 12,539,993 B2Signode India Ltd.
- Spindle for supporting reels with a tubular winding core, and a support device comprising the spindle8 Oct 2026US 2026/0307933 A1Fosber S.p.A.
- Expandable Shaft8 Oct 2026US 2026/0307934 A1
- Electrode Roll Replacement System6 Aug 2026US 2026/0225841 A1LG Energy Solution, Ltd.
- Winding device, method of replacing mandrel, and mandrel2 Jul 2026US 2026/0183817 A1Primetals Technologies Japan, Ltd.
- Systems and methods for wrapping coils4 Jun 2026US 2026/0152305 A1Signode India Ltd.
Most cited
By later US patents
- Fiber delivery apparatus and system having a creel and fiber placement head with polar axis of rotation95US 8,534,338 B2Ingersoll Machine Tools, Inc. · 2013
- Method and apparatus for producing coreless rolls of sheet material and a coreless roll of material43US 6,102,313 ASaltech Inc. · 2000
- Roll handling equipment41US 4,149,682 A1979
- Dispenser handle for rolls of flexible sheet material36US 4,817,762 A1989
- Method of producing coreless toilet paper rolls and the coreless toilet paper produced thereby36US 5,518,200 AKaji Seisakusho Y.K. · 1996