Wind turbine drivetrain component with low friction radial shaft seal
US-11879439-B2 · Jan 23, 2024 · US
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kept in sealing position by centrifugal force
kept in sealing position by centrifugal force · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16J15/42 |
| Official title | kept in sealing position by centrifugal force |
| Display label | kept in sealing position by centrifugal force |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 3 |
| 2021 | 2 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Centrifugal hydraulic seal
US-11713812-B2 · Aug 1, 2023 · US
Wind turbine drivetrain component with low friction radial shaft seal
US-2021102528-A1 · Apr 8, 2021 · US
Hydraulic seal arrangement
US-10883607-B2 · Jan 5, 2021 · US
Hydraulic seal for non-mainshaft, rotating to static
US-10371263-B2 · Aug 6, 2019 · US
Hydraulic seal arrangement
US-2019120386-A1 · Apr 25, 2019 · US
Bearing isolator seal with enhanced rotor drive coupling
US-10184514-B2 · Jan 22, 2019 · US
Hydraulic seal for non-mainshaft, rotating to static
US-2018372227-A1 · Dec 27, 2018 · US
Seal
US-10119420-B2 · Nov 6, 2018 · US
System for sealing an oil chamber from an adjoining exterior volume and turbo-machine provided with such a sealing system
US-9982551-B2 · May 29, 2018 · US
Labyrinth seal bearing
US-9926981-B2 · Mar 27, 2018 · US
Device for sealing between the coaxial shafts of a turbomachine
US-9909452-B2 · Mar 6, 2018 · US
Zero or low leakage oil transfer bearing
US-9896969-B2 · Feb 20, 2018 · US
Bearing isolator seal with enhanced rotor drive coupling
US-2017370405-A1 · Dec 28, 2017 · US
Labyrinth-type seal bearing
US-2017152892-A1 · Jun 1, 2017 · US
Seal
US-2017002686-A1 · Jan 5, 2017 · US
Zero or low leakage oil transfer bearing
US-2016273386-A1 · Sep 22, 2016 · US
Pressure resistant static and dynamic seal assembly and method
US-9249886-B2 · Feb 2, 2016 · US
Hydraulic seal arrangement
US-9157532-B2 · Oct 13, 2015 · US
Seal
US-9133939-B2 · Sep 15, 2015 · US