B29D 2030/3221
Folding over means
Official title: {Folding over means, e.g. bladders or rigid arms}
B29D2030/3221 (Folding over means) appears on 160 US grants and 117 published applications in this corpus.
Search patents in B29D- Granted patents
- 160
- Published applications
- 117
- Assignees
- 58
- Inventors
- 277
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 3 |
| 2002 | 2 | 6 |
| 2003 | 5 | 4 |
| 2004 | 3 | 1 |
| 2005 | 6 | 7 |
| 2006 | 4 | 6 |
| 2007 | 1 | 4 |
| 2008 | 7 | 3 |
| 2009 | 1 | 6 |
| 2010 | 3 | 6 |
| 2011 | 2 | 6 |
| 2012 | 2 | 4 |
| 2013 | 2 | 2 |
| 2014 | 3 | 3 |
| 2015 | 2 | 5 |
| 2016 | 2 | 4 |
| 2017 | 4 | 9 |
| 2018 | 2 | 1 |
| 2019 | 5 | 6 |
| 2020 | 3 | 7 |
| 2021 | 4 | 8 |
| 2022 | 4 | 2 |
| 2023 | 3 | 2 |
| 2024 | 3 | 5 |
| 2025 | 1 | 3 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29D 2030/3228Using one bladder acting on each side of the drumIndexing code71
- B29D 2030/3264Using radially expandable, contractible mechanical meansIndexing code48
- B29D 2030/3242And with means for pressing the bladder against the ply materialIndexing code39
- B29D 2030/3235Using two or more bladders acting on each side of the drumIndexing code31
- B29D 2030/3257Using pressing rollersIndexing code19
- B29D 2030/3278Folding down the ends of the tubular tyre componentIndexing code18
- B29D 2030/3271Using air blastsIndexing code0
Recent patents
- Tire building drum and method for turning-up a tire component15 Sep 2026US 12,734,776 B2Vmi Holland B .V.
- Tilting roller system for folding a pneumatic tire carcass insert around a bead core and folding-up method11 Aug 2026US 12,703,164 B2Compagnie Generale Des Etablissements Michelin
- Tire production method and apparatus5 May 2026US 12,617,168 B2Mesnac Co., Ltd.
- Mechanical drum suspension turn-up forming structure27 Jan 2026US 12,533,861 B2Mesnac Co., Ltd.
- Apparatus for building a carcass structure of a tyre for vehicle wheels5 Aug 2025US 12,377,625 B2Pirelli Tyre S. P. A.
- Turn-up method and turn-up mechanism10 Sep 2026US 2026/0264353 A1Mesnac Co., Ltd.
- Method for producing a pneumatic tyre13 Aug 2026US 2026/0233480 A1Continental Reifen Deutschland GmbH
- Roller turn-up mechanism and mechanical drum8 Jan 2026US 2026/0008246 A1Mesnac Co., Ltd.
- Tire building drum and method for turning-up a tire component1 Jan 2026US 2026/0001292 A1Vmi Holland B .V.
- Tire building method and mechanical drum4 Dec 2025US 2025/0367895 A1Mesnac Co., Ltd.
Most cited
By later US patents
- Tire building drum37US 4,131,500 AAvon Tyres Limited · 1978
- Method of forming green tire26US 5,380,384 ABridgestone Corporation · 1995
- Tire building drum25US 4,010,058 AThe Goodyear Tire & Rubber Company · 1977
- Tire building drum21US 4,683,021 AThe Goodyear Tire & Rubber Company · 1987
- Apparatus for manufacturing a radial tire21US 4,685,992 AMitsubishi Jukogyo Kabushiki Kaisha · 1987