Abstract: A foamer nozzle assembly combines a turbulence chamber with a foam enhancer comprising a plurality of spaced ribs defining uniform openings, the ribs having flat surfaces lying perpendicular to the inner wall of the chamber for further generating foam as the foam bubbles impact against such flat surfaces to further mix with the air in the turbulence chamber.

Abstract: A trigger actuated fluid dispenser for simultaneously dispensing disparate fluids separately stored in separate fluid compartments of a container includes side-by-side pump cylinders receiving side-by-side pump pistons reciprocable simultaneously during each pressure stroke applied by a single trigger lever for separately and simultaneously pumping the disparate fluids along separate discharge paths.

Abstract: A two stage pressure build-up discharge valve assembly is mounted within the end of the discharge nozzle surrounded by a nozzle cap of a trigger actuated pump sprayer, and includes a spring biased discharge valve element having a high pressure throttle valve fixed to a second stage low pressure valve piston to provide a predetermined pressure threshold which when exceeded by fluid pressure generated by the pumping force applied during trigger actuation unseats immediately permitting the fluid pressure to act upon the low pressure secondary valve piston rapidly snapping the valve element to a full open flow position.

Abstract: An interference fit is effected for a threaded closure cap used in mounting a trigger sprayer onto the threaded neck of a container by the provision of an oversized elastomeric gasket seal presenting at least one radially extending protrusion bent by the cap during the cap threading operation to lie between the cap and the container neck, the protrusion having a predetermined thickness to form the interference fit for increasing resistance to cap backoff.

Abstract: A closure cap snap-fitted to the lower end of a dispenser body is threaded to the neck of a container of fluid to be dispensed and resists back-off or loosening from the container by resisting rotation of the body about the central axis of the container. Cooperating slip-resistant surfaces are provided between an edge wall of a flexible skirt on the cap and a confronting flange on the body. Rotation of the body is further resisted by the provision of slip-resistant cooperating surfaces between opposing sides of a gasket seal and the respective lower and upper confronting surface of the dispenser body and the container neck.

Abstract: In a manually actuated sprayer having a nozzle rotatable from OFF to ON positions, a removable tear strip or a removable cap is provided for preventing rotation from the OFF position. Upon removal of the tear strip or cap, the nozzle is free to be rotated to its ON position.

Abstract: In a manually actuated sprayer having a nozzle rotatable from OFF to ON positions, a removable tear strip or a removable cap is provided for preventing rotation from the OFF position. Upon removal of the tear strip or cap, the nozzle is free to be rotated to its ON position.

Abstract: In a manually actuated sprayer having a nozzle rotatable from OFF to ON positions, a removable tear strip or a removable cap is provided for preventing rotation from the OFF position. Upon removal of the tear strip or cap, the nozzle is free to be rotated to its ON position.

Abstract: A manually actuated dispensing pump having a pump body extending transversely above a closure cap adapted for mounting the body at the upper end of a container, has an outwardly open pump cylinder for the reception of a reciprocable piston having spaced piston seals. To facilitate pump priming, the inboard seal is positioned relative to the inlet port so that the inboard seal overlies the inlet port at a predetermined position during the inward pressure stroke of the piston to permit flow of entrapped air from the pump chamber outwardly of the pump cylinder via the annular chamber defined between the piston seals.

Abstract: A multi-purpose nozzle assembly for a liquid dispenser includes a rotatable nozzle cap having an internal sleeve in engagement with the end of a fixed plug located within an outlet member of the dispenser containing a discharge conduit. An end wall of the cap has a smooth inner surface confronting the end wall of the plug, and the plug and sleeve have two discrete passageways formed between the discharge conduit and the discharge orifice located in the cap end wall. The passageways are capable of being opened and closed in selected rotative positions of the cap in alternating off, stream and spray positions.