Gear pump with suction housing element providing a tight seal between suction and high-pressure chamber to increase pump efficiency and method of providing tight seal
US-12313071-B1 · May 27, 2025 · US
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Sealings for working fluid between radially and axially moving parts
Sealings for working fluid between radially and axially moving parts · 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 | F04C27/007 |
| Official title | {Sealings for working fluid between radially and axially moving parts} |
| Display label | Sealings for working fluid between radially and axially moving parts |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Non-lubricated system with abradable sealing element, corresponding sealing element and method for assembling the system
US-12209586-B2 · Jan 28, 2025 · US
Scroll pump with a plurality of bellows sealing a plurality of adjustment members
US-12025128-B2 · Jul 2, 2024 · US
Scroll pump
US-2023184251-A1 · Jun 15, 2023 · US
Compressor with compliant seal
US-11655818-B2 · May 23, 2023 · US
Non-lubricated system with abradable sealing element, corresponding sealing element and method for assembling the system
US-2022074413-A1 · Mar 10, 2022 · US
Tip seal and scroll fluid machine using same
US-11236749-B2 · Feb 1, 2022 · US
Compressor With Compliant Seal
US-2021372400-A1 · Dec 2, 2021 · US
Compressor arrangement with integrated motor
US-2021285446-A1 · Sep 16, 2021 · US
Tip seal and scroll fluid machine using same
US-2021156382-A1 · May 27, 2021 · US
Compressor having sound isolation feature
US-10570901-B2 · Feb 25, 2020 · US
Compressor having sound isolation feature
US-10544786-B2 · Jan 28, 2020 · US
Co-rotating scroll compressor and method of assembling the same
US-2019376513-A1 · Dec 12, 2019 · US
Scroll compressor with different chamfered corners
US-10458407-B2 · Oct 29, 2019 · US
Scroll compressor
US-2018017055-A1 · Jan 18, 2018 · US
Compressor Having Sound Isolation Feature
US-2017292519-A1 · Oct 12, 2017 · US
Compressor Having Sound Isolation Feature
US-2017292518-A1 · Oct 12, 2017 · US
Compressor having sound isolation feature
US-9689391-B2 · Jun 27, 2017 · US
Scroll compressor having back pressure chamber that operatively contains a discharge pressure and an intermediate pressure during different periods of time within a single compression cycle
US-9523361-B2 · Dec 20, 2016 · US
Scroll compressor having adjustable spacers
US-9074599-B2 · Jul 7, 2015 · US