F04B 43/1253
By using two or more rollers as squeezing elements, the rollers moving
Official title: {by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing}
F04B43/1253 (By using two or more rollers as squeezing elements, the rollers moving) appears on 965 US grants and 895 published applications in this corpus.
Search patents in F04B- Granted patents
- 965
- Published applications
- 895
- Assignees
- 467
- Inventors
- 1,571
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 9 | 0 |
| 1980 | 19 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 11 | 0 |
| 1985 | 20 | 0 |
| 1986 | 16 | 0 |
| 1987 | 9 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 11 | 0 |
| 1991 | 10 | 0 |
| 1992 | 12 | 0 |
| 1993 | 15 | 0 |
| 1994 | 9 | 0 |
| 1995 | 17 | 0 |
| 1996 | 19 | 0 |
| 1997 | 12 | 0 |
| 1998 | 13 | 0 |
| 1999 | 13 | 0 |
| 2000 | 18 | 0 |
| 2001 | 9 | 4 |
| 2002 | 9 | 12 |
| 2003 | 12 | 11 |
| 2004 | 9 | 25 |
| 2005 | 11 | 30 |
| 2006 | 10 | 26 |
| 2007 | 15 | 32 |
| 2008 | 5 | 27 |
| 2009 | 13 | 27 |
| 2010 | 15 | 28 |
| 2011 | 18 | 19 |
| 2012 | 30 | 60 |
| 2013 | 34 | 41 |
| 2014 | 23 | 51 |
| 2015 | 28 | 42 |
| 2016 | 40 | 35 |
| 2017 | 34 | 45 |
| 2018 | 44 | 54 |
| 2019 | 44 | 51 |
| 2020 | 51 | 44 |
| 2021 | 38 | 48 |
| 2022 | 37 | 39 |
| 2023 | 47 | 42 |
| 2024 | 38 | 47 |
| 2025 | 42 | 34 |
| 2026 | 25 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F04B 43/1276Means for pushing the rollers against the tubular flexible member143
- F04B 43/1261The rollers being placed at the outside of the tubular flexible member139
- F04B 43/1292Pumps specially adapted for several tubular flexible members139
- F04B 43/1284Means for pushing the backing-plate against the tubular flexible member130
- F04B 43/1269The rotary axes of the rollers lying in a plane perpendicular to75
Recent patents
- Reward dispenser for pet29 Sep 2026US 12,745,752 B2Joipaw Ltd
- Devices, systems, and methods for priming a fluid management system29 Sep 2026US 12,746,325 B2Boston Scientific Scimed, Inc.
- Peristaltic metering pump and methods of operation1 Sep 2026US 12,721,325 B2EcoTech, LLC
- Peristaltic pump head with hybrid rollers and tubing manifold1 Sep 2026US 12,723,583 B1
- Operable implant11 Aug 2026US 12,702,752 B2
- U-shaped e-cigarette peristaltic pump17 Sep 2026US 2026/0275980 A1Shenzhen Smoore Technology Limited
- Peristaltic pump for vacuum generation27 Aug 2026US 2026/0251136 A1Empiriko Corporation
- Pump top for liquid dispensers20 Aug 2026US 2026/0241399 A1World Club Supply Corp.
- Roller pump for use with a perfusion system and associated methods20 Aug 2026US 2026/0243244 A1LivaNova Deutschland GmbH
- 3d cell washer9 Jul 2026US 2026/0194053 A1Agilent Technologies, Inc.
Most cited
By later US patents
- Self-adjusting pump head and safety manifold cartridge for a peristaltic pump1,565US 5,447,417 AValleylab, Inc. · 1995
- Hose pump for the exact dosing of small quantities of liquids1,512US 5,693,020 ALoctite Europa E.E.I.G. (E.W.I.V.) · 1997
- Infusion medium delivery device and method with compressible or curved reservoir or conduit549US 8,137,314 B2Medtronic MiniMed, Inc. · 2012
- Peristaltic infusion pump and disposable cassette for use therewith336US 4,187,057 AStewart-Naumann Laboratories, Inc. · 1980
- Thermal treatment apparatus310US 5,549,559 AArgomed Ltd. · 1996