Diaphragm pumping device

Abstract

A diaphragm pumping device includes a housing having a partition to form an upper chamber and a lower chamber, an inlet port for receiving a fluid, and an outlet port, a bladder attached to the housing and having a compartment communicating with the chambers of the housing, two check valves disposed between the bladder and the chambers of the housing, and an electro-magnetic device actuates the arm to depress and to expand the bladder in order to draw the fluid form the inlet port of the housing toward the outlet port of the housing, the outlet port is communicating with the lower chamber of the housing for allowing the fluid to be completely pumped out of the lower chamber of the housing.

1 . A diaphragm pumping device comprising:
 a housing including a partition provided therein to separate an inner portion of said housing into an upper chamber and a lower chamber, said housing including an inlet port provided thereon and communicating with said upper chamber thereof for receiving a fluid, and including an outlet port provided thereon and communicating with said lower chamber thereof,   a bladder attached to said housing and including a compartment formed therein and communicating with said upper chamber and said lower chamber of said housing,   a first check valve attached to said housing and disposed between said bladder and said upper chamber of said housing and arranged to allow the fluid to flow from said upper chamber of said housing into said bladder only and to prevent the fluid from flowing backward from said bladder into said upper chamber of said housing,   a second check valve attached to said housing and disposed between said bladder and said lower chamber of said housing and arranged to allow the fluid to flow from said bladder into said lower chamber of said housing only and to prevent the fluid from flowing backward from said lower chamber of said housing into said bladder,   an arm attached to said bladder,   a magnetic member attached to said arm, and   an electro-magnetic device to actuate said magnetic member and to operate said arm to depress and to expand said bladder in order to draw the fluid form said inlet port of said housing toward said outlet port of said housing.   
   
   
       2 . The diaphragm pumping device as claimed in  claim 1 , wherein said housing includes an orifice and an aperture formed therein and communicating with said upper and said lower chambers of said housing respectively, said first and said second check valves each includes a shank extended therefrom for engaging through said housing, and each includes a ratchet catch provided on said shank for engaging with said housing to anchor and secure said first and said second check valves to said housing, and each includes a blade provided on said shank for engaging with said housing and for selectively blocking said orifice and said aperture of said housing respectively. 
   
   
       3 . The diaphragm pumping device as claimed in  claim 1 , wherein said housing includes a retainer provided thereon, and said arm includes a first end pivotally coupled to said retainer of said housing, and a second end having said magnetic member attached thereto. 
   
   
       4 . The diaphragm pumping device as claimed in  claim 3 , wherein said housing includes a dovetail slot formed therein, and said retainer includes a dovetail member slidably engaged in said dovetail slot of said housing. 
   
   
       5 . The diaphragm pumping device as claimed in  claim 4 , wherein said housing includes a stop slidably engaged with said dovetail slot of said housing and engaged with said retainer for anchoring said retainer to said housing. 
   
   
       6 . The diaphragm pumping device as claimed in  claim 4 , wherein said housing includes at least one catch extended therefrom and located beside said dovetail slot of said housing member and said retainer for engaging with said arm and for anchoring said arm to said housing. 
   
   
       7 . The diaphragm pumping device as claimed in  claim 3 , wherein said arm includes a pivot pin attached to said first end of said arm and engaged with said retainer. 
   
   
       8 . The diaphragm pumping device as claimed in  claim 1  further comprising an outer receptacle including a base member to support said housing and said electro-magnetic device. 
   
   
       9 . The diaphragm pumping device as claimed in  claim 8 , wherein said outer receptacle includes at least one cushioning member to cushion said housing and said electro-magnetic device.