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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29/00
Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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F04C29/0042
Driving elements, brakes, couplings, transmissions specially adapted for pumps
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F04C29/005
Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
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F04C29/0071
Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
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