Pump device and methods of making the same

Abstract

A pump including a flexible membrane and a body defining a fluid pump chamber therebetween may be fitted with an overlying, removable, rigid cap to protect inadvertent actuation of the membrane pumping mechanism.

1 . A pump, comprising:
 a body;   a membrane secured to an open end of the body;   a closure attached to the body;   a fluid chamber defined between the membrane and the closure; and   a passageway in communication with the fluid chamber.   
     
     
         2 . The pump of  claim 1 , wherein the body and the membrane comprise a bi-injected component. 
     
     
         3 . The pump of  claim 1 , wherein the body comprises the passageway. 
     
     
         4 . The pump of  claim 1 , wherein the closure further comprises:
 a ball seat;   a tube retainer;   a closure mechanism; and   a valve post.   
     
     
         5 . The pump of  claim 4 , wherein the valve post comprises a valve post extending from the closure and contacting the membrane. 
     
     
         6 . A pump, comprising:
 a body;   a membrane secured to an open end of the body;   a closure attached to the body;   a fluid chamber defined between the membrane and the closure;   a passageway in communication with the fluid chamber; and   a cap fitted to the body and overlying at least a portion of the membrane.   
     
     
         7 . The pump of  claim 6 , wherein the cap further comprises:
 a cap body attached to the body of the pump; and   a removable cap portion partially covering the membrane.   
     
     
         8 . The pump of  claim 7 , further comprising a cap opening between the cap body and the removable cap portion. 
     
     
         9 . A pump, comprising:
 a body;   a membrane secured to an open end of the body;   a closure, comprising:
 a ball seat; 
 a tube retainer; 
 a closure mechanism; and 
 a valve post, wherein the closure is attached to the body; 
   a fluid chamber defined between the membrane and the closure; and   a passageway between the fluid chamber and an exterior of the body.   
     
     
         10 . The pump of  claim 9 , further comprising a lip circumscribing at least a portion of the closure and configured to attach the closure to the body of the pump. 
     
     
         11 . The pump of  claim 9 , further comprising a cap, comprising:
 a cap body; and   a removable cap portion at least partially covering the membrane.   
     
     
         12 . The pump of  claim 11 , further comprising a cap opening between the cap body and the removable cap portion. 
     
     
         13 . The pump of  claim 9 , wherein the body further comprises:
 a main wall attached to the membrane; and   a secondary wall.   
     
     
         14 . The pump of  claim 9 , wherein the membrane further comprises a valve. 
     
     
         15 . The pump of  claim 14 , wherein the valve post abuts against the valve. 
     
     
         16 . The pump of  claim 9 , wherein the body and the membrane are secured through bi-injection. 
     
     
         17 . The pump of  claim 9 , wherein the membrane comprises a material selected from the group consisting of an elastomeric material, a flexible material, and a deformable material.