Matches 1 - 15 out of 15
Match Document Document Title
7399168 Air driven diaphragm pump  
An air driven diaphragm pump includes two diaphragms affixed to a common shaft. The shaft extends through an air valve providing reciprocating pressurized air to the diaphragms through associated...
7367785 Reduced icing valves and gas-driven motor and reciprocating pump incorporating same  
A valve for a gas-driven motor and a valve assembly and reciprocating pump incorporating the valve are provided. The valve includes a shiftable valve for alternatively supplying a motive gas...
7063517 Valve apparatus and pneumatically driven diaphragm pump incorporating same  
A valve apparatus and pneumatically driven diaphragm pump incorporating same having a valve body having a longitudinal axis and an actuator having an axis with a first end and a second end. The...
7025578 Pump having air valve with integral pilot  
A pump comprising a valve housing and a spool slidably positioned within the valve housing. The spool has a supply face, a first end face, and a second end face, and is slidable between a first...
6901960 Double diaphragm pump including spool valve air motor  
A double diaphragm pump including a pump housing, first and second pump diaphragms, an inlet manifold, an outlet manifold, and an air motor. The air motor includes a spool valve having a valve...
6883417 Connecting configuration for a diaphragm in a diaphragm pump  
A diaphragm pump including at least one diaphragm having an inner diaphragm surface, an outer diaphragm surface, and a projecting rim, the rim projecting from the inner diaphragm surface and having...
6865981 Method of producing a pump  
A pump having a diaphragm positioned within a diaphragm housing comprised of an air cap and a fluid cap. The air cap and fluid cap include inner surfaces that cooperate to define a diaphragm...
6824364 Master/slave pump assembly employing diaphragm pump  
A master/slave pump assembly employs a dual diaphragm pump as the master pump. An abrasive fluid, such as a resin containing abrasive particles, can be pumped by the dual diaphragm pump without the...
6746637 Process for making chemical resistant pump diaphragm  
A method for making an injection molded multilayer polymer pump diaphragm having one side resistant to chemicals. The method can include injecting molten polymer material of a first type having...
6382934 Reversing valve for a compressed air membrane pump  
A reversing valve for a compressed air membrane pump in which an equilibrium state of the main piston in the neutral position, leading to stoppage of the pump, is prevented by disposing the main...
6280149 Active feedback apparatus and air driven diaphragm pumps incorporating same  
A diaphragm pump having an active feedback system is provided. The diaphragm pump includes a diaphragm pump having a housing including a pumping cavity. The pump cavity having at least one...
6190136 Diaphragm failure sensing apparatus and diaphragm pumps incorporating same  
A diaphragm failure sensing apparatus for use in a diaphragm pump having at least two pumping cavities, each pumping cavity having a fluid chamber and a motive gas chamber separated by a pumping...
6168394 Air driven double diaphragm pump  
A double diaphragm pump driven by alternating charges of air includes air chambers and pump chambers to form pump cavities. Diaphragms extend across the pump cavities and are held by their...
6059546 Contractile actuated bellows pump  
A pump for impelling a fluid includes a first variable volume, the first variable volume having a first inlet for allowing the influx of the fluid into the first variable volume and a first outlet...
5758563 Fluid driven reciprocating pump  
A fluid-driven reciprocating pump includes a housing and a reciprocating assembly defining first and second working fluid chambers. The housing includes an inlet and an outlet for introduction and...
Matches 1 - 15 out of 15