Assignee
SIHI GMBH & CO KG
DE·18 granted patents·336 citations·filing 1977–1995
Top patents by PatentIndex Score
18 records- 0192US5767635ADisplacement machine with electronic motor synchronizationSIHI GMBH & CO KG·Filed 1994·Granted Jun 16, 1998·110 cites·21 claims
- 0267US4256436ASelf-priming pumpSIHI GMBH & CO KG·Filed 1978·Granted Mar 17, 1981·25 cites·8 claims
- 0361US5489195ALiquid ring pump having a sheet metal valve plateSIHI GMBH & CO KG·Filed 1994·Granted Feb 6, 1996·25 cites·14 claims
- 0460US4632649AGas jet pumpSIHI GMBH & CO KG·Filed 1985·Granted Dec 30, 1986·20 cites·7 claims
- 0558US5800146ALiquid-ring gas pump with a silencing element in the discharge spaceSIHI GMBH & CO KG·Filed 1995·Granted Sep 1, 1998·20 cites·6 claims
- 0658US4230438ARotary pump assemblySIHI GMBH & CO KG·Filed 1979·Granted Oct 28, 1980·19 cites·4 claims
- 0752US5775816ABearing arrangementSIHI GMBH & CO KG·Filed 1995·Granted Jul 7, 1998·19 cites·2 claims
- 0852US4979875ACentrifugal pump for the delivery of hot liquidsSIHI GMBH & CO KG·Filed 1987·Granted Dec 25, 1990·17 cites·34 claims
- 0952US4149574AApparatus for filling a hollow and closed system provided with only one filling apertureSIHI GMBH & CO KG·Filed 1977·Granted Apr 17, 1979·18 cites·8 claims
- 1044US4390317ASelf-priming centrifugal pump, in particular for conveying liquids in the vicinity of their boiling pointSIHI GMBH & CO KG·Filed 1981·Granted Jun 28, 1983·12 cites·8 claims
- 1143US4685865ALiquid ring compressor having openings in housing for emptying liquid during stoppageSIHI GMBH & CO KG·Filed 1985·Granted Aug 11, 1987·9 cites·10 claims
- 1240US4710105ALiquid-ring compressor unitSIHI GMBH & CO KG·Filed 1985·Granted Dec 1, 1987·9 cites·6 claims
- 1338US4634348ALiquid ring compressor having a passageway in discharge port for introducing airSIHI GMBH & CO KG·Filed 1985·Granted Jan 6, 1987·7 cites·7 claims
- 1435US5735674ALiquid-ring gas pumpSIHI GMBH & CO KG·Filed 1995·Granted Apr 7, 1998·6 cites·8 claims
- 1533US5509789ALiquid ring pump having a sheet metal working chamber casingSIHI GMBH & CO KG·Filed 1994·Granted Apr 23, 1996·6 cites·4 claims
- 1628US5456827ACompressor system having a device for continuous cleaning of the auxiliary or working liquidSIHI GMBH & CO KG·Filed 1993·Granted Oct 10, 1995·6 cites·4 claims
- 1726US5549450ACentrifugal pump of the sectional-casing designSIHI GMBH & CO KG·Filed 1993·Granted Aug 27, 1996·2 cites·7 claims
- 1820US5194074ADevice for continuously purifying the waste gases from a vacuum unitSIHI GMBH & CO KG·Filed 1990·Granted Mar 16, 1993·6 cites·14 claims
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