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All Patents in class 137/505
Patents 1 - 11 of 11
First set of recordsLast set of records
NumberDatePatenteeTitleType
27,704Apr. 03, 1860F. DouglasImproved steam-trapsteam engines
188,740Mar. 27, 1877H. Murphy, A. Kipp, Jr.Improvement in gas-regulatorspressure regulators
260,097Jun. 27, 1882B. HollyApparatus for Supplying Steamsteam heating
383,225May 22, 1888A.G. HohensteinPressure-regulatorsteam valves
383,226May 22, 1888A.G. HohensteinAutomatic pressure-regulator and safety-valvesteam valves
998,201Jul. 18, 1911W. RaymondRegulator for fluid-compressorsair compressors
1,916,433Jul. 04, 1933W.C. MullerSpeed Control Valvehydraulic apparatus
2,020,773Nov. 12, 1935H. ErnstDeflection Variatormetalworking machine mechanisms
2,152,837Apr. 04, 1939E. CannonPrefill valve for hydraulic presseshydraulic metalworking presses
2,166,940Jul. 25, 1939C.M. ConradsonHydraulic Power Systemmachine tool controls
2,577,455Dec. 04, 1951E.J. DillmanPressure Regulatorrefrigeration apparatus
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