F16J 1/00

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Class  F16J : PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS


Subclass 1/00: Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00)

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12241488 Cylinder deviceFeb 22, 24Mar 04, 25HITACHI ASTEMO, LTD.
12234733 Seal flow bypassNov 10, 23Feb 25, 25RTX CORPORATION
12117025 Seal groove cooling flowMar 18, 22Oct 15, 24Woodward, Inc.
12078122 Annular ring groove of a pistonOct 19, 22Sep 03, 24AI ALPINE US BIDCO INC
12078247 Piston blank, piston and methodJan 27, 23Sep 03, 24KS Kolbenschmidt GmbH
12044231 Articulated plunger rod pumpAug 03, 18Jul 23, 24CLEANTEK INDUSTRIES INC.
12007028 Bulk unloader follower sealDec 03, 18Jun 11, 24Nordson Corporation
12000490 Gap seal deviceJul 22, 21Jun 04, 24HAMMELMANN GMBH
11959412 Pistons and piston assemblies for internal combustion enginesMay 03, 22Apr 16, 24Cummins Inc.; Achates Power Inc.;
11946435 Open-faced piston assemblyMar 21, 22Apr 02, 24Mainspring Energy, Inc.
11933401 Plunger, instrument, and moldOct 07, 21Mar 19, 24Enplas Corporation
11920582 Plunger, pump, and liquid analysis deviceDec 25, 20Mar 05, 24Kyocera Corporation
11821444 Piston and a fluid-actuated working cylinder provided therewithJun 13, 22Nov 21, 23FESTO SE & CO. KG
11788621 Piston assembly formed of interlocking piston membersOct 24, 22Oct 17, 23American Axle & Manufacturing, Inc.
11686199 Engine with gas exchange through piston rodMay 26, 22Jun 27, 23Aquarius Engines (A.M.) Ltd.
11668394 Piston and reciprocating compressorJun 13, 22Jun 06, 23Kabushiki Kaisha Kobe Seiko Sho ( Kobe Steel Ltd.)
11649812 Hydraulic piston with a depressurized grooveMar 30, 21May 16, 23Not available
11643991 Annular ring groove of a pistonJul 16, 20May 09, 23AI ALPINE US BIDCO INC
11577326 Sealing piston for a hydraulic expansion chucking device and expansion chucking deviceJun 24, 20Feb 14, 23Kennametal Inc.
11572128 Piston assembly for human-powered vehicleMay 19, 20Feb 07, 23Shimano Inc.

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0003,490 PISTON, GEAR-CHANGE SELECTOR MODULE AND MOUNTING METHODDec 13, 22Jan 02, 25Valeo Powertrain GmbH
2024/0401,578 Proportional volumetric dosing unitSep 30, 22Dec 05, 24Not available
2024/0117,800 PISTON FOR A PISTON PUMP, METHOD FOR PRODUCING A PISTON, AND PISTON PUMPFeb 02, 22Apr 11, 24thyssenkrupp Dynamic Components GmbH; THYSSENKRUPP AG;
2024/0052,927 PISTON ASSEMBLY AND ASSOCIATED COMPONENTS, SYSTEMS, AND METHODJul 12, 23Feb 15, 24Not available
2023/0046,766 PUMPING ASSEMBLY, PISTON PUMP AND ORAL IRRIGATORApr 28, 22Feb 16, 23FLY CAT ELECTRICAL CO., LTD.
2022/0260,034 OPEN-FACED PISTON ASSEMBLYMar 21, 22Aug 18, 22Not available
2022/0112,951 PLUNGER, INSTRUMENT, AND MOLDOct 07, 21Apr 14, 22Enplas Corporation
2020/0355,139 ENGINE PISTON AND METHOD FOR MANUFACTURING THE SAMEApr 27, 20Nov 12, 20Not available
2020/0347,798 ANNULAR RING GROOVE OF A PISTONJul 16, 20Nov 05, 20Not available
2020/0240,354 ENGINE SYSTEMJan 23, 20Jul 30, 20Not available
2020/0173,554 Hydraulic Device Comprising A Segment Having At Least One Through-Hole Configured To Promote The Rotation Of Said SegmentNov 19, 19Jun 04, 20Airbus SAS
2019/0170,168 METHOD FOR PRODUCING PISTON ASSEMBLY AND HYDRAULIC FLUID DEVICEJun 27, 17Jun 06, 19SMC Corporation
2019/0128,419 BUILD CYLINDER ARRANGEMENTS FOR MACHINES FOR LAYERED PRODUCTION OF THREE-DIMENSIONAL OBJECTS HAVING A FIBER METAL SEALDec 20, 18May 02, 19Not available
2018/0266,443 ACCUMULATOR PISTON, IN PARTICULAR FOR A PRESSURE MEDIUM ACCUMULATOR OF A HYDRAULIC UNIT OF AN ELECTRONICALLY SLIP-CONTROLLABLE VEHICLE BRAKE SYSTEMMar 16, 18Sep 20, 18Not available
2017/0175,892 PISTON ROD CLAMPING SYSTEMMar 03, 17Jun 22, 17Not available
2017/0074,398 Double-acting pistonSep 13, 16Mar 16, 17Not available
2016/0290,505 CYLINDER-PISTON ASSEMBLYJun 14, 16Oct 06, 16CATERPILLAR INC.
2016/0243,309 SYRINGE SYSTEMS, PISTON SEAL SYSTEMS, STOPPER SYSTEMS, AND METHODS OF USE AND ASSEMBLYFeb 19, 16Aug 25, 16REGENERON PHARMACEUTICALS, INC.
2015/0114,217 Piston AssemblyFeb 19, 13Apr 30, 15ENERGY TECHNOLOGIES INSTITUTE LLP

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Patents Issued To Date - By Filing Year

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