An upside-down pump wherein the pump core assembly includes outer and inner pump bodies, the center hole of the piston in the inner pump body adjoins a connecting rod, which fits with the liquid inflow cavity and the outer diameter includes a spring, the outer diameter ring of the valve sleeve includes a side thru-hole, the inner diameter bottom hole of the inner pump includes a second ball and extends from the suction pipe hole on one side of the external pump and fits with the first thru-hole on one side of the connecting sleeve and has an annular clearance, the second thru-hole opposite the first fits with one end of the pipe, the coupling joint has a first ball, the bottom of the connecting sleeve has a base sleeve, the knurled column is inserted into the auxiliary hole in the external pump with a gap, and the thru-holes communicate.

Exemplary embodiments of pumps having positive pressure venting and refill units are disclosed herein. An exemplary pump includes a liquid pump chamber, a liquid piston, a first air pump chamber, and a first air piston and a mixing area in fluid communication with the liquid pump chamber and the first air pump chamber. The exemplary pump further includes a second air pump chamber and a second air pump piston. The second air pump chamber is configured for pumping air into a container and the first air piston and the second air piston move in unison.

Exemplary embodiments of energy efficient foam pumps and dispensers are disclosed herein. An exemplary foam dispenser included a housing, a reservoir for holding a foamable liquid, a motor, a motor shaft, and a turbine air pump. The turbine air pump is connected to the motor shaft. A cam is also attached to the motor shaft and is used for driving a liquid pump. Liquid from the liquid pump and air from the turbine air pump are mixed in a mixing chamber and dispensed through an outlet nozzle. The touch-free foam dispenser further includes a sensor for sensing an object, circuitry for receiving a signal from the sensor indicative of an object being present and circuitry for energizing the motor to dispense fluid in the form of a foam.

A discharging container comprising a container body that stores a content and a discharging component that discharges the content. The discharging component comprises a cover portion mounted to a mouth neck portion of the container body and a pump head portion that discharges the content by a pressing operation. A tubular guide rod is erected upwards from the periphery of an opening formed in the central portion of a top plate of the cover portion. The pump head portion is provided with an inner waterproof wall capable of moving up and down along the outer peripheral surface of the guide rod, and a first outer waterproof wall located at the outer side of the inner waterproof wall. The discharging container is easy to be manufactured and can reliably prevent water intrusion.

A piston pump for dispensing fluid from a reservoir, an improved vacuum relief arrangement in which a passageway for flow of air from the atmosphere into the reservoir is provided at least in part through a piston-forming element of the piston pump.

Liquid dispenser having a liquid store and a discharge device fitted thereto and having a discharge opening. The discharge device has a pump device with a pump chamber variable in terms of volume and connected at an input side in a communicating manner to the liquid store and at an output side in a communicating manner to the discharge opening. The pump device conveys liquid from the liquid store to the discharge opening. The discharge device has a ventilation channel, by which an incoming air flow is enabled for pressure compensation between the liquid store and a surrounding atmosphere. The ventilation channel has a ventilation valve openable by manual actuation of the pump device and closed when the pump device is not actuated. Further, the ventilation channel has a capillary channel portion through which the incoming air flow reaches the liquid store.

A wobble plate for a sequentially activated multi-diaphragm foam pump includes three or more wings, a wobble plate shaft, and an aperture located in each of the three or more wings. A first wing is configured to have a first distance from first contact surface of a first pump diaphragm. A second wing is configured to have a second distance from a first contact surface on a second pump diaphragm, and a third wing is configured to have substantially the second distance from a first contact surface on a third pump diaphragm.

A hand pump fabricated entirely from plastic components for dispensing liquids, is provided. The hand pump includes an actuator, a closure, a housing having a lower check valve, and a piston having an integrated upper check valve in the form of an inverted cone suspended within a cylinder. An elastic, dome shaped, plastic return spring is utilized to return the actuator to its rest position after actuation. Used pumps do not require disassembly to be recycled.

A portable mist blower system, which has a housing assembly, a tank assembly, a handle assembly, a battery assembly, a pump motor assembly, a blower panel assembly, a manifold assembly, a blower assembly, and a solenoid assembly. The housing assembly has a front panel, a rear panel, a top panel, a bottom panel, and lateral panels. The tank assembly is secured to the top panel and trapped by the front panel, the battery assembly is secured to the top panel, the handle assembly is mounted onto the top panel, the pump motor assembly is secured to the rear panel, the blower panel assembly is mounted onto the front panel, the manifold assembly is connected to the blower panel assembly, and the blower assembly and the solenoid assembly are mounted onto the bottom panel.

A refillable solution dispensing device includes a housing having an upper section and a lower section. An actuator exposed through the exterior of the upper section. The actuator is movably connected to an air chamber and a solution chamber. The solution chamber is in fluid communication with the solution reservoir and a discharge nozzle. The air chamber is fluidly connected to the discharge nozzle. The actuator is coupled to a mixing shaft that protrudes into the lower section. The lower section comprises an interior volume that functions as a solution reservoir. A solution cartridge and water are inserted into the solution reservoir. A solution mixer is rotatably coupled to the mixing shaft combining the solution within the solution cartridge, the solution cartridge, and the water into one solution. Upon an activation of the actuator, the solution and the air will mix and exit the discharge nozzle.