D21F 7/005
Wire-tensioning devices
Official title: {Wire-tensioning devices}
D21F7/005 (Wire-tensioning devices) appears on 16 US grants and 11 published applications in this corpus.
Search patents in D21F- Granted patents
- 16
- Published applications
- 11
- Assignees
- 15
- Inventors
- 41
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Screen support rod for screen drawing into a paper machine23 Dec 2025US 12,503,816 B2Voith Patent GmbH
- Roller11 Feb 2025US 12,221,749 B2Voith Patent GmbH
- Method for detecting a tensile stress of a circumferential belt25 Jan 2022US 11,231,337 B2Texmag GmbH Vertriebsgesellscaft
- Tissue paper making machine and a method of operating a tissue paper making machine11 Jan 2022US 11,220,785 B2Valmet Aktiebolag
- Installation with at least one continuous conveyor belt for conveying materials and products5 Apr 2016US 9,302,853 B2JUD Aktiengesellschaft Papiermaschinen
- Screen support rod for screen drawing into a paper machine18 Jan 2024US 2024/0018720 A1Voith Patent GmbH
- Roller20 Apr 2023US 2023/0117841 A1Voith Patent GmbH
- A tissue paper making machine and a method of operating a tissue paper making machine12 Aug 2021US 2021/0246613 A1Valmet Aktiebolag
- Method for Detecting a Tensile Stress of a Circumferential Belt10 Dec 2020US 2020/0386638 A1Texmag GmbH Vertriebsgesellschaft
- Installation with at least one continuous conveyor belt for conveying materials and products20 Aug 2015US 2015/0232278 A1JUD Aktiengesellschaft Papiermaschinen
Most cited
By later US patents
- Apparatus for automatically centering an endless band trained over two rolls16US 4,173,904 AS.p.A. Luigi Rizzi & C. · 1979
- Dryer felt tension indicator apparatus15US 8,353,219 B2Paperchine Inc. · 2013
- Device for the control of the tension of an endless belt or screen7US 4,077,834 A1978
- Apparatus for stretching an endless web5US 4,256,537 AMorrison Machine Co. · 1981
- Method and equipment in a paper/board machine for regulation of the difference of draw4US 6,352,615 B1Valmet Corporation · 2002