Abstract: The fixing plate for an aerosol container includes: an outer wall 12 that covers a mounting cup 4 except an opening 11 exposing two stems 6 and abuts on an upper face of an annular rim 5; a cylindrical wall 16 integrally connected to the outer wall 12 on a lower side thereof and surrounding the annular rim 5; and an engaging claw 16a engaging the annular rim 5, wherein a positioning wall 13 is provided at the opening 11, the positioning wall having an inner circumferential shape following an outer circumferential surface of a projection 7 that protrudes from the mounting cup 4, with the two stems 6 being bound together, and that has a non-circular cross-sectional shape with long sides and short sides.

Abstract: An improved pump is provided that is capable of achieving excellent back suction function by using a depression head, without compromising the ease of depression operations of the head due to the additional function. The pump includes a depression head and an annular piston. The depression head is urged upward and is relatively displaceable with respect to the stem. When depressed, a lever member of the depression head operates to open a discharge opening. An annular piston opens a discharge valve, in an uppermost displacement position and closes the discharge valve in a lowermost displacement position. Back suction is caused due to a negative pressure state occurring in the stem until the discharge valve seat is closed by the annular piston during upward displacement of the stem.

Abstract: Provided is a metered quantity syringe-type dispenser that is capable of multistage pushing. The metered quantity syringe-type dispenser includes a syringe; a plunger configured to be pushed into the syringe; an elastic deforming portion configured to be deformed in response to the pushing of the plunger; and a stopper portion configured to be locked with respect to the syringe and to be released from the locking by restoring force of the elastic deforming portion.

Abstract: A syringe has a dripless feature by using an O-ring located between a conical disc and a flat plunger disc in an annular groove on a moving plunger. The flat plunger disc has a series of projections that offset the o-ring off the flat plunger disc surface when the plunger is not actuated. When the plunger is actuated, the o-ring distorts to rest on the projections and also on the surface of the flat plunger disc. When the plunger is released, the o-ring's resiliency pulls the o-ring back to its original shape which sucks back the fluid being dispensed so that no or less drips occur.

Abstract: A cartridge-type dispenser has a cartridge main body with a filling space, an extrusion nozzle on the front, and a piston slidably disposed in the filling space. The piston extrudes contents of the filling space from the extrusion nozzle by applying a push-in force. The piston includes a trunk portion having an outer circumferential wall running along an inner wall of the main body with a gap therebetween, a front wall on one end of the trunk portion directly contacting the contents of the filling space, and a rear wall on the other end whereon a rod of a push-in tool applies the push-in force on the piston. On the outer circumferential wall of the trunk portion, protrusions are provided, which contact the inner circumferential wall of the main body. The points of contact form sliding parts of the piston but do not seal the main body interior.

Abstract: An improved pump is provided that is capable of achieving excellent back suction function by using a depression head, without compromising the ease of depression operations of the head due to the additional function. The pump includes a depression head and an annular piston. The depression head is urged upward and is relatively displaceable with respect to the stem. When depressed, a lever member of the depression head operates to open a discharge opening. An annular piston opens a discharge valve, in an uppermost displacement position and closes the discharge valve in a lowermost displacement position. Back suction is caused due to a negative pressure state occurring in the stem until the discharge valve seat is closed by the annular piston during upward displacement of the stem.

Abstract: There is provided a dispenser in which an operation load of a plunger is stable and contents of the dispenser do not leak out after pressing operation is interrupted.

Abstract: A mixing and discharge device is provided, in which contents are ejected from a pair of containers (33) standing next to each other and are mixed and discharged outside of this device, by pressing down the discharge nozzles (35) of said containers simultaneously with the manipulation of the thumb and a finger of the hand holding the containers.

Abstract: A mixing and discharge device is provided, in which contents are ejected from a pair of containers (33) standing next to each other and are mixed and discharged outside of this device, by pressing down the discharge nozzles (35) of said containers simultaneously with the manipulation of the thumb and a finger of the hand holding the containers.