F01C 1/12

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Showing 1 to 20 of 21 results

Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9920761 Vacuum pump rotor for a vacuum pump having a roots pumping mechanismDec 14, 15Mar 20, 18EDWARDS LIMITED
9752580 Positive displacement gear pumpSep 23, 14Sep 05, 17G.P.S. GREEN POWER SOLUTION SA
9732723 Redundant pressure controlFeb 14, 14Aug 15, 17ZEROPEX GROUP LIMITED
9714655 Rotary device and a method of designing and making a rotary deviceDec 17, 10Jul 25, 17EPICAM LIMITED
9664047 Positive displacement rotary devices with uniquely configured voidsJan 13, 15May 30, 17MALLEN RESEARCH LIMITED PARTNERSHIP
9664048 Positive displacement rotary devices with uniform tolerancesJan 13, 15May 30, 17MALLEN RESEARCH LIMITED PARTNERSHIP
9605739 Power transmission systemApr 11, 14Mar 28, 17GPOUER CO., LTD.
9464567 Dual tip seals for a rotary engineMay 03, 12Oct 11, 16Power Source Technologies
9435203 Rotary positive displacement machineAug 19, 11Sep 06, 16South, Peter
9334793 Rotary engine having two rotors with intersecting pathwaysNov 06, 14May 10, 16NOVATION IQ LLC
9273568 Coupling structure for vacuum exhaust device and vacuum exhaust systemNov 16, 11Mar 01, 16ULVAC, INC.
8887593 Device of a pair of claw-type rotors having same profilesMar 13, 13Nov 18, 14LIUNG FENG INDUSTRIAL CO., LTD.
6224358 Rotary pump/turbine apparatus and integrated valve systemJan 13, 00May 01, 01Not available
6139290 Method to seal a planetary rotor engineMay 29, 98Oct 31, 00Not available
5816789 Rotary pump/engineJul 17, 96Oct 06, 98Not available
4799870 Fluid power transfer deviceJan 23, 87Jan 24, 89Not available
4470779 Rotary fluid machine with expandable rotary obturatorApr 05, 83Sep 11, 84Not available
4417859 Rotary displacement turbine engine with vacuum relief valve meansOct 04, 79Nov 29, 83Not available
4342548 Screw having a V-shaped groove profile for cooperating with a pinion in a compression or expansion machineDec 05, 79Aug 03, 82Uniscrew Limited
4324537 Rotary machine with a plurality of rotors having peripheral rolling contactNov 13, 79Apr 13, 82Not available

Showing 1 to 20 of 21 results