F15B 1/10

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9976574 Dual bellows separator for high pressure applicationsMay 15, 14May 22, 18TECHNETICS GROUP, LLC
9951796 Hydraulic accumulatorNov 29, 14Apr 24, 18Hydac Technology GmbH
9915433 Moisture detecting air cap indicator for expansion tank failureMay 30, 14Mar 13, 18AMTROL LICENSING INC.
9881702 Hydraulic control unit and method of shutting down a nuclear reactor using the sameDec 10, 14Jan 30, 18GE-HITACHI NUCLEAR ENERGY AMERICAS LLC
9683583 Metal bellowsMay 21, 14Jun 20, 17EAGLE INDUSTRY CO., LTD.
9670746 Device for adjusting a media pressure relative to an ambient pressureJun 26, 14Jun 06, 17HYDAC TECHNOLOGY GMBH
9664206 Pressure accumulatorJan 13, 15May 30, 17HYDAC TECHNOLOGY GMBH
9644644 Hydraulic accumulator in form of a bellows accumulatorOct 29, 12May 09, 17HYDAC TECHNOLOGY GMBH
9551360 Hydraulic accumulatorJun 14, 12Jan 24, 17CARL FREUDENBERG KG
9527198 Surge accumulator for hydraulic hammerJun 27, 13Dec 27, 16CATERPILLAR INC.
9388830 AccumulatorFeb 20, 15Jul 12, 16NHK SPRING CO., LTD.
9377031 AccumulatorMay 17, 13Jun 28, 16EAGLE INDUSTRY CO., LTD.
9328746 AccumulatorDec 05, 13May 03, 16EAGLE INDUSTRY CO., LTD.
9188139 AccumulatorMay 14, 13Nov 17, 15EAGLE INDUSTRY CO., LTD.
9133859 Pressure storeJun 17, 11Sep 15, 15HYDAC TECHNOLOGY GMBH
9027600 AccumulatorAug 02, 12May 12, 15EAGLE INDUSTRY CO., LTD.
8875740 Hydraulic accumulator, in particular bellows accumulatorNov 04, 09Nov 04, 14HYDAC TECHNOLOGY GMBH
8844575 Guiding device for metal bellowsDec 30, 09Sep 30, 14HYDAC TECHNOLOGY GMBH
6981371 Control device for working machineMay 17, 04Jan 03, 06KOBELCO CONSTRUCTION MACHINERY CO., LTD., NISSAN MOTOR CO., LTD.,
6116585 Pressure holder with an enclosed gas massAug 11, 98Sep 12, 00ZF FRIEDRICHSHAFEN AG