Five piston diaphragm pump

Abstract

A pump having top and bottom pieces coupled together by a coupling device features a circumferential clamp that is a lightweight plastic clamp having clamping members, each with one or more strengthening members oriented along a longitudinal axis defined in relation to the top and bottom pieces. The clamping members may include two semi-circular clamping members, each with circumferentially spaced strengthening rib members oriented along the longitudinal axis of the pump housing.

1 . A pump having top and bottom pieces coupled together by a coupling device, characterized in that 
 the coupling device includes a circumferential clamp made from a lightweight plastic or other suitable material having two clamping members for coupling together so as to provide a substantially uniform circumferential compression along a longitudinal axis of the pump defined in relation to the top and bottom pieces for clamping the same together.    
   
   
       2 . A diaphragm pump according to  claim 1 , wherein each clamping member has circumferentially spaced strengthening rib members oriented along the longitudinal axis.  
   
   
       3 . A diaphragm pump according to  claim 1 , wherein the two clamping members are semi-circular and joined together on one side by a hook and pin mechanism and on the other side by a bolting mechanism, including a fastening bolt used alone or in combination with a fastening nut.  
   
   
       4 . A diaphragm pump according to  claim 1 , wherein the circumferential clamp is made from a lightweight plastic or other suitable material, including 30% glass filled Polypropylene, 40% glass filled Polypropylene, Nylon, 30% glass filled Nylon, 40% glass filled Nylon.  
   
   
       5 . A diaphragm pump according to  claim 1 , wherein the clamping members have inner surfaces with V-shaped or other suitably shaped grooves for mating with corresponding V-shaped or other suitably shaped surfaces of the top and bottom pieces.  
   
   
       6 . A diaphragm pump according to  claim 1 , wherein the top and bottom pieces include an upper housing and a motor adapter of a pump head of the pump.  
   
   
       7 . A diaphragm pump according to  claim 6 , wherein the upper housing and the motor adapter have corresponding circumferential surfaces for mating and coupling together.  
   
   
       8 . A diaphragm pump according to  claim 1 , wherein the diaphragm pump operates by using a cam to convert rotational motion from a motor into pseudo-linear motion that is used to drive one or more pistons for pumping a medium.  
   
   
       9 . A pump having top and bottom pieces coupled together by a coupling device, characterized in that 
 the coupling device comprises a circumferential clamp made from a lightweight plastic material and having semi-circular clamping members, each having one or more strengthening members oriented along a longitudinal axis defined in relation to the top and bottom pieces.    
   
   
       10 . A pump according to  claim 9 , wherein the each semi-circular clamping member has a plurality of circumferentially spaced strengthening rib members oriented along the longitudinal axis.  
   
   
       11 . A pump according to  claim 9 , wherein the semi-circular clamping members are joined together on one side by a hook and pin mechanism and on the other side by a bolting mechanism, including a fastening bolt used alone or in combination with a fastening nut.  
   
   
       12 . A pump according to  claim 9 , wherein the circumferential clamp provides uniform circumferential compression along the longitudinal axis for clamping the top and bottom pieces together.  
   
   
       13 . A pump according to  claim 9 , wherein the lightweight plastic material includes 30% glass filled Polypropylene, 40% glass filled Polypropylene, Nylon, 30% glass filled Nylon, 40% glass filled Nylon.  
   
   
       14 . A pump according to  claim 9 , wherein the top and bottom pieces include an upper housing and a motor adapter of a pump head of the pump.  
   
   
       15 . A pump according to  claim 14 , wherein the upper housing and the motor adapter have corresponding circumferential angled surfaces for mating and coupling together, including V-shaped angled surfaces.  
   
   
       16 . A pump according to  claim 9 , wherein the diaphragm pump operates by using a cam to convert rotational motion from a motor into pseudo-linear motion that is used to drive one or more pistons for pumping a medium.