Inventor
GRUETT DONALD G
US14 patents
Patents
14 patentsUS4529514AJul 16, 1985
Filter assembly with shut off and filter element therefor
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US5638920AJun 17, 1997
Air tool lubricator
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US5323653AJun 28, 1994
Fluid level detection apparatus
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US4784584ANov 15, 1988
Metering device
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US4784578ANov 15, 1988
Metering device
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US5961299AOct 5, 1999
Fluid injector pump with interchangeable reservoir
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US6164924ADec 26, 2000
Piston and drive assembly for use in a pump
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US4577728AMar 25, 1986
Lubricant metering valve
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US7118352B2Oct 10, 2006
Hydraulic metering device
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US5984652ANov 16, 1999
Single-piece piston with central bore for use in a pneumatically-activated pump
OIL RITE CORP7 citations72
US6071097AJun 6, 2000
Single-piece piston for use in a pneumatically-activated pump
OIL RITE CORP14 citations70
US5253984AOct 19, 1993
Apparatus for dispensing a liquid on a remote object
OIL RITE CORP17 citations66
US4034831AJul 12, 1977
Oiler assembly
OIL RITE CORP3 citations62
US7600984B2Oct 13, 2009
Hydraulic metering device
OIL RITE CORP2 citations61