Inventor · disambiguated record
Oscar Luthi
Also filed as: LUTHI OSCAR
32 granted patents·544 citations·filing 1977–1996
98Inventor score
Top patents by PatentIndex Score
32 records- 0193US4242808APaper web drying system and processINGERSOLL RAND CO·Filed 1978·Granted Jan 6, 1981·50 cites·4 claims
- 0290US5046338AMultiphase pulp washerINGERSOLL RAND CO·Filed 1990·Granted Sep 10, 1991·41 cites·9 claims
- 0388US4085003APressure pulp washer with pivoted baffleINGERSOLL RAND CO·Filed 1977·Granted Apr 18, 1978·27 cites·3 claims
- 0485US4827741APulp washer discharging a pulp slurry at a controlled consistencyINGERSOLL RAND CO·Filed 1988·Granted May 9, 1989·29 cites·8 claims
- 0581US4217170APulp washer discharging a low consistency pulp slurryINGERSOLL RAND CO·Filed 1979·Granted Aug 12, 1980·19 cites·2 claims
- 0678US4297794APaper sheet dryerINGERSOLL RAND CO·Filed 1977·Granted Nov 3, 1981·24 cites·16 claims
- 0777US5667642APulp slurry-handling press roll and twin and single roll slurry handling pressesBELOIT TECHNOLOGIES INC·Filed 1996·Granted Sep 16, 1997·26 cites·11 claims
- 0877US4364185ASystem for drying wet, porous websINGERSOLL RAND CO·Filed 1981·Granted Dec 21, 1982·29 cites·6 claims
- 0971US4808265AMethod of washing pulp in a pressure pulp washer adding two washing liquidsINGERSOLL RAND CO·Filed 1987·Granted Feb 28, 1989·17 cites·3 claims
- 1064US4906364AFilter deck assembly sliding sealINGERSOLL RAND CO·Filed 1988·Granted Mar 6, 1990·29 cites·9 claims
- 1163US4338192AClarifier bubble generation and distribution nozzleINGERSOLL RAND CO·Filed 1980·Granted Jul 6, 1982·23 cites·6 claims
- 1263US4265740ACentrifugal separatorINGERSOLL RAND CO·Filed 1979·Granted May 5, 1981·15 cites·5 claims
- 1362US4770604APulp centrifugal pumpINGERSOLL RAND CO·Filed 1986·Granted Sep 13, 1988·22 cites·6 claims
- 1462US4099268AMixing deviceINGERSOLL RAND CO·Filed 1977·Granted Jul 4, 1978·20 cites·3 claims
- 1561US5307939AScreening apparatus for papermaking pulpINGERSOLL RAND CO·Filed 1992·Granted May 3, 1994·13 cites·10 claims
- 1661US4321140ADisk pressINGERSOLL RAND CO·Filed 1980·Granted Mar 23, 1982·19 cites·5 claims
- 1760US5503737AAir inflow restrictor for disc filtersINGERSOLL RAND CO·Filed 1994·Granted Apr 2, 1996·22 cites·12 claims
- 1858US4894121APressure pulp washerINGERSOLL RAND CO·Filed 1988·Granted Jan 16, 1990·10 cites·4 claims
- 1955US4098642APressure pulp washer with inlet pivotINGERSOLL RAND CO·Filed 1977·Granted Jul 4, 1978·10 cites·3 claims
- 2054US4251927APaper drier drumINGERSOLL RAND CO·Filed 1979·Granted Feb 24, 1981·9 cites·4 claims
- 2153US5683582AAir inflow restrictor for vacuum filtersBELOIT TECHNOLOGIES INC·Filed 1996·Granted Nov 4, 1997·19 cites·19 claims
- 2251US5470471AAnti-rewet deck for press rollsINGERSOLL RAND CO·Filed 1993·Granted Nov 28, 1995·18 cites·8 claims
- 2349US5626297AWood pulp ozone bleaching contactorBELOIT TECHNOLOGIES INC·Filed 1995·Granted May 6, 1997·8 cites·11 claims
- 2448US4581104AMethod of reducing the lignin in wood pulp with oxygen gas recirculationINGERSOLL RAND CO·Filed 1985·Granted Apr 8, 1986·10 cites·2 claims
- 2544US4480392AConduction dryer for flaked or fluffed materialINGERSOLL RAND CO·Filed 1982·Granted Nov 6, 1984·7 cites·7 claims
- 2640US4515693AFiberglass-reinforced solid plastic drumINGERSOLL RAND CO·Filed 1981·Granted May 7, 1985·7 cites·2 claims
- 2737US5238564AMethod and apparatus for control of filtrate volume in a disc filterINGERSOLL RAND CO·Filed 1992·Granted Aug 24, 1993·7 cites·14 claims
- 2834US5520506APulp slurry-handling, centrifugal pumpINGERSOLL RAND CO·Filed 1994·Granted May 28, 1996·6 cites·12 claims
- 2932US5456804AInlet slice assembly, for a pulp slurry processing machineINGERSOLL RAND CO·Filed 1994·Granted Oct 10, 1995·2 cites·13 claims
- 3032US4435085AMixer for use in pulp processesINGERSOLL RAND CO·Filed 1982·Granted Mar 6, 1984·4 cites·10 claims
- 3130US5810973AApparatus for producing small particles from high consistency wood pulpBELOIT TECHNOLOGIES INC·Filed 1993·Granted Sep 22, 1998·2 cites·20 claims
- 3230US5688368AMethod for cooling and ozone bleaching wood pulpBELOIT TECHNOLOGIES INC·Filed 1995·Granted Nov 18, 1997·0 cites·1 claims
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