Patent ID: 7013793

Claim:
A diaphragm pump, having a diaphragm coupled to a wobble plate, the diaphragm and the wobble plate each having a front surface disposed so as to face the other, the diaphragm pump characterized in that the coupling comprises: a post ( 11 ) protruding from the front surface of the wobble plate and at least partially surrounded by a collar ( 11 a ); and a pin ( 22 ) protruding from the front surface of the diaphragm, the pin ( 22 ) having a recess ( 22 a ) for mating with the post ( 11 ), and having an outer portion ( 22 b ) surrounding the recess ( 22 a ) and able to resiliently deform so as to squeeze through the collar ( 11 a ) when the pin ( 22 ) is pushed onto the post ( 11 ).