Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F04
POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
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F04C
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
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15/00
Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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F04C15/06
Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
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F04C15/064
with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps
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F04C15/066
of the non-return type
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F04C15/068
of the elastic type, e.g. reed valves
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