Abstract: Embodiments of foam pumps and refill units for foam dispensers are disclosed herein. An exemplary embodiment of a foam pump includes a housing, a mixing chamber located within the housing, an inlet into the mixing chamber and an outlet valve located downstream of the mixing chamber. In addition, a sealing member movable in a first direction and a second direction is included and provided in the housing, the sealing member being movable in the first direction by pressurized air. The pressurized air causes the sealing member to move in the first direction and open a pathway for pressurized air to travel through the inlet and enter the mixing chamber. Upon a decrease in the air pressure, the sealing member moves in the second direction and closes off the inlet from pressurized air.

Abstract: A two-stroke foam pump includes a piston housing and a piston assembly retained therein, the interaction of the piston housing and piston assembly defining a compressible mixing chamber. Movement of the piston assembly within the piston housing in one direction increases the volume of the compressible mixing chamber to draw liquid and air therein, and movement of the piston assembly within the piston housing in a direct opposite thereto decreases the volume of the compressible mixing chamber to expel liquid and air from the compressible mixing chamber as a foam product.

Abstract: A foam pump including a pump housing with a liquid chamber in fluid communication with a foamable liquid filled container and an air chamber in fluid communication with a high pressure air source through an air inlet. The foam pump also includes a dispensing tube having a wiper seal post with a closed distal end positioned within the pump housing, and an outlet tube with an open distal end positioned outside the pump housing. The wiper seal post includes at least one inlet hole in fluid communication with the liquid chamber, and a check valve near the second open end. The foam pump further includes at least one foam screen in the open end of the outlet tube, a wiper seal slidably positioned around the wiper seal post and in sealing contact with the pump housing and the wiper seal post, and a spring bias to bias the wiper seal in an unactuated position.

Abstract: An antomizing foam pump creates atomized droplets of a foamable liquid in air in a compression chamber. The compression chamber is then collapsed to force the droplets and air through a mesh screen to create a foam product.

Abstract: Wipe dispensers are provided wherein particular wipe-gripping and wipe-ripping structures are provided to overcome problems encountered with the prior art. Particularly, gripping and ripping structures are provided to prevent the removal of more than one wipe at a time from a dispenser and to prevent a following wipe from falling back into the interior of a container when separated from a lead wipe being removed from the container. In particular embodiments, structures are provided to avoid pinching an individual's finger when feeding a wipe up through the gripping and ripping structures. In yet other particular embodiments, a boss is provided to prevent wipes from bunching up during the dispensing thereof.

Abstract: A foam pump including a pump housing with a liquid chamber in fluid communication with a foamable liquid filled container and an air chamber in fluid communication with a high pressure air source through an air inlet. The foam pump also includes a dispensing tube having a wiper seal post with a closed distal end positioned within the pump housing, and an outlet tube with an open distal end positioned outside the pump housing. The wiper seal post includes at least one inlet hole in fluid communication with the liquid chamber, and a check valve near the second open end. The foam pump further includes at least one foam screen in the open end of the outlet tube, a wiper seal slidably positioned around the wiper seal post and in sealing contact with the pump housing and the wiper seal post, and a spring bias to bias the wiper seal in an unactuated position.

Abstract: A wipes dispenser includes a container having an interior holding a plurality of wipes. A grip orifice provides communication between the interior and the exterior of the container, and the grip orifice serves to prevent wipes from falling back into the interior. The dispenser also includes a rip fence, and a lead end of a lead wipe of the plurality of wet wipes within the container extends through the grip orifice and then through the rip fence such that pulling on the lead end to pull the lead wipe against the rip fence causes the remainder of the lead wipe to be removed from the container and become disassociated with the remaining wipes of the plurality of wipes. As the lead end is pulled against the rip fence, the following wipe of the plurality of wipes is pulled through the grip orifice to provide its lead end outside of the interior of the container, and the grip orifice prevents this lead end of the following wipe from falling back into the interior of the container.

Abstract: A foam pump including a pump housing with a liquid chamber in fluid communication with a foamable liquid filled container and an air chamber in fluid communication with a high pressure air source through an air inlet. The foam pump also includes a dispensing tube having a wiper seal post with a closed distal end positioned within the pump housing, and an outlet tube with an open distal end positioned outside the pump housing. The wiper seal post includes at least one inlet hole in fluid communication with the liquid chamber, and a check valve near the second open end. The foam pump further includes at least one foam screen in the open end of the outlet tube, a wiper seal slidably positioned around the wiper seal post and in sealing contact with the pump housing and the wiper seal post, and a spring bias to bias the wiper seal in an unactuated position.

Abstract: A wipes dispenser includes a container having an interior holding a plurality of wipes. A grip orifice provides communication between the interior and the exterior of the container, and the grip orifice serves to prevent wipes from falling back into the interior. The dispenser also includes a rip fence, and a lead end of a lead wipe of the plurality of wet wipes within the container extends through the grip orifice and then through the rip fence such that pulling on the lead end to pull the lead wipe against the rip fence causes the remainder of the lead wipe to be removed from the container and become disassociated with the remaining wipes of the plurality of wipes. As the lead end is pulled against the rip fence, the following wipe of the plurality of wipes is pulled through the grip orifice to provide its lead end outside of the interior of the container, and the grip orifice prevents this lead end of the following wipe from falling back into the interior of the container.

Abstract: A two-stroke foam pump includes a piston housing and a piston assembly retained therein, the interaction of the piston housing and piston assembly defining a compressible mixing chamber. Movement of the piston assembly within the piston housing in one direction increases the volume of the compressible mixing chamber to draw liquid and air therein, and movement of the piston assembly within the piston housing in a direct opposite thereto decreases the volume of the compressible mixing chamber to expel liquid and air from the compressible mixing chamber as a foam product.

Abstract: A foam pump including a pump housing with a liquid chamber in fluid communication with a foamable liquid filled container and an air chamber in fluid communication with a high pressure air source through an air inlet. The foam pump also includes a dispensing tube having a wiper seal post with a closed distal end positioned within the pump housing, and an outlet tube with an open distal end positioned outside the pump housing. The wiper seal post includes at least one inlet hole in fluid communication with the liquid chamber, and a check valve near the second open end. The foam pump further includes at least one foam screen in the open end of the outlet tube, a wiper seal slidably positioned around the wiper seal post and in sealing contact with the pump housing and the wiper seal post, and a spring bias to bias the wiper seal in an unactuated position.

Abstract: An antomizing foam pump creates atomized droplets of a foamable liquid in air in a compression chamber. The compression chamber is then collapsed to force the droplets and air through a mesh screen to create a foam product.

Abstract: A pump head for a displacement pump used in a bottle dispenser and configured to minimize misdirection of solution dispensed through an orifice thereof. The pump head is an integrally molded one piece structure, having an elliptical outlet orifice that lies in a substantially horizontal plane, and having a major axis substantially twice that of the minor axis. The configuration and the positioning of the orifice minimizes clogging or coagulation of certain solutions, obscures such coagulation from view, and minimizes the misdirection of any dispensing through the nozzle orifice that would otherwise result from clogging or coagulation. The pump head is particularly adapted for use with displacement pumps employed in bottle dispensers and the like.