143448 ⎘
Rotary-piston machines or pumps having the characteristics covered by two or more groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in groups and relative reciprocation between co-operating members with vanes hinged to the inner member and reciprocating with respect to the outer member
Sub-classes:VANE PUMP FEATURING FLUID LUBRICATION FOR AN IMPELLER
#2Hydraulic automatic transmission bicycle
#3Compressor structure
#4Hydraulic automatic transmission bicycle
#5Centrifugal suction-type hybrid vane fluid machine
#6VANE PUMP
#7Hydraulic automatic transmission bicycle
#8Spiral compressor
#9Noise-reduction mechanism for oil pump
#10Pendulum-slide pump having variable groove radii greater in transition than therebetween