Assignee
OTT KG LEWA
DE·16 granted patents·578 citations·filing 1981–2002
Top patents by PatentIndex Score
16 records- 0197US4430048ADiaphragm pump with a diaphragm clamped in pressure-balancing arrangementOTT KG LEWA·Filed 1981·Granted Feb 7, 1984·170 cites·13 claims
- 0290US5188515ADiaphragm for an hydraulically driven diaphragm pumpOTT KG LEWA·Filed 1991·Granted Feb 23, 1993·91 cites·12 claims
- 0387US6582206B2Diaphragm chucking with elasticity adjustmentOTT KG LEWA·Filed 2001·Granted Jun 24, 2003·45 cites·6 claims
- 0485US6327960B1Diaphragm pump with a hydraulically driven diaphragmOTT KG LEWA·Filed 2000·Granted Dec 11, 2001·48 cites·17 claims
- 0582US5074757ADiaphragm pump with mechanically driven diaphragmOTT KG LEWA·Filed 1990·Granted Dec 24, 1991·54 cites·11 claims
- 0679US6464474B2Nonrespiratory diaphragm chuckingOTT KG LEWA·Filed 2001·Granted Oct 15, 2002·29 cites·17 claims
- 0775US4749342ADiaphragm pump with hydraulically driven rolling diaphragmOTT KG LEWA·Filed 1985·Granted Jun 7, 1988·31 cites·6 claims
- 0861US4865528AMethod and arrangement for starting an hydraulic diaphragm pump against loadOTT KG LEWA·Filed 1988·Granted Sep 12, 1989·20 cites·21 claims
- 0959US5655894AControlled prevention of premature snuffle valve actuation in high pressure membrane pumpsOTT KG LEWA·Filed 1995·Granted Aug 12, 1997·20 cites·8 claims
- 1058US5810567AHydraulic Diaphragm pumpOTT KG LEWA·Filed 1997·Granted Sep 22, 1998·20 cites·11 claims
- 1153US4811624AHydraulically actuated stroke adjusting deviceOTT KG LEWA·Filed 1986·Granted Mar 14, 1989·14 cites·11 claims
- 1249US4832581ADiaphragm pump with circulation flushingOTT KG LEWA·Filed 1985·Granted May 23, 1989·13 cites·9 claims
- 1344US5047950AMethod and an apparatus for measuring the flow in oscillating displacement pumpsOTT KG LEWA·Filed 1989·Granted Sep 10, 1991·13 cites·7 claims
- 1439US6884045B2Hydraulically powered diaphragm pump with pretensioned diaphragmOTT KG LEWA·Filed 2002·Granted Apr 26, 2005·2 cites·9 claims
- 1535US5899671AHydraulic driven diaphragm pump with mechanical diaphragm stroke limitationOTT KG LEWA·Filed 1997·Granted May 4, 1999·7 cites·5 claims
- 1627US6598493B2Multiple crank drive for working machines, in particular for diaphragm pumpsOTT KG LEWA·Filed 2001·Granted Jul 29, 2003·1 cites·2 claims
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