Patent application number | Description | Published |
20090179047 | Dual chamber lotion pump - A manually operated vertically reciprocated pump dispenser has a simplified construction with two separate pumps that pump two separate liquids from a container and keep the two separate liquids separated from each other as they are pumped through the dispenser, mixing the liquids for the first time in a discharge passage of the dispenser just prior to the mixed liquids being discharged from the dispenser. The dispenser has a rotatable sleeve that covers the two pumps and is rotated to lock and unlock a dispenser head that operates the two pumps. | 07-16-2009 |
20090256008 | Trigger Sprayer Nozzle Assembly with Pull/Push Foaming Tube - An indexing nozzle assembly for a trigger sprayer is comprised of a nozzle base that is attachable to a sprayer housing of the trigger sprayer, a cap that is mounted for rotation on the nozzle base, and a foaming tube that is mounted for linear reciprocating movement on the cap. Rotation of the cap on the nozzle base changes liquid discharge from the trigger sprayer between an off condition and at least a spray condition. In the spray condition of the nozzle cap, the foaming tube can be manually pulled and extended from the nozzle cap. With the foaming tube extended from the nozzle cap, the liquid discharge from the nozzle assembly in a spray pattern comes into contact with an interior surface of the tube and generates a foam discharge from the nozzle assembly. | 10-15-2009 |
20090308897 | Trigger Sprayer Having a Reduced Number of Parts and a Double Tubular Valve Member - A trigger sprayer has a one piece valve member that includes both an inlet valve element and an outlet valve element. The one piece valve member replaces the separate liquid inlet valve and liquid outlet valve of a conventional trigger sprayer, and thereby provides a more simplified construction for the trigger sprayer and a fewer number of component parts in the trigger sprayer. | 12-17-2009 |
20110240681 | Low Cost Trigger Sprayer - A trigger sprayer has a housing, a piston bore within the housing, and a piston reciprocally mounted within the piston bore. The housing further includes a flow passage through which liquid passes from a passage inlet to a passage outlet. An actuator is operable to reciprocate the piston within the piston bore between a vacuum stroke creating reduced pressure in the piston bore and a compression stroke creating increased pressure in the piston bore. A valve assembly within the flow passage controls the flow of liquid through the flow passage upon operation of the actuator. The valve assembly further comprises a check valve and a priming valve. The sprayer has a closure for mounting the sprayer to a container. The valve seat for the check valve is in a component formed separately from and operatively connected to the housing. | 10-06-2011 |
20120273596 | Low Cost Trigger Sprayer - A trigger sprayer has a housing, a piston bore within the housing, and a piston reciprocally mounted within the piston bore. The housing further includes a flow passage through which liquid passes from a passage inlet to a passage outlet. An actuator is operable to reciprocate the piston within the piston bore between a vacuum stroke creating reduced pressure in the piston bore and a compression stroke creating increased pressure in the piston bore. A valve assembly within the flow passage controls the flow of liquid through the flow passage upon operation of the actuator. The valve assembly further comprises a check valve and a priming valve. The sprayer has a closure for mounting the sprayer to a container. The valve seat for the check valve is in a component formed separately from and operatively connected to the housing. | 11-01-2012 |
20120280065 | MULTI-CHAMBER TRIGGER SPRAYER - Described are multi-chamber trigger sprayers and fluid dispensing apparatuses, including a sprayer housing including a pump piston and at least two pump chambers, a closure attachment configured to couple the trigger sprayer to an opening of a container, at least two fluid discharge passageways, each passageway in fluid communication with one of the pump chambers, and at least two priming valves, each configured to prevent backflow of fluid into one of the at least two fluid discharge pathways, and a biasing element configured to bias the pump piston. In some embodiments, the biasing element may be disposed outside of the closure attachment and adjacent to a pivot point of the trigger. Some embodiments of the multi-chamber trigger sprayer may be formed entirely from plastic. Other embodiments may also be disclosed and claimed. | 11-08-2012 |
20120286069 | Low Cost Trigger Sprayer - A trigger sprayer has a housing, a piston bore within the housing, and a piston reciprocally mounted with the piston bore. The housing further includes a flow passage through which liquid passes from a passage inlet to a passage outlet. An actuator is operable to reciprocate the piston within the piston bore between a vacuum stroke creating reduced pressure in the piston bore and a compression stroke creating increased pressure in the piston bore. A valve unit within the flow passage controls the flow of liquid through the flow passage upon operation of the actuator. The valve unit further comprises a check valve and priming valve. The check valve is shaped in a frusto-conical manner and is assembled into the check valve seat which is not part of the housing but is a separate component. The sprayer has a free spinning threaded type closure for mounting the sprayer to a container, the closure formed separately from and secured to said housing. | 11-15-2012 |
20140014691 | PRE-COMPRESSION VALVE SYSTEMS FOR TRIGGER SPRAYERS - Pre-compression valve systems for trigger sprayers include one-piece valve systems having both check and pre-compression valves or multiple component valve systems. | 01-16-2014 |