Described herein are one-component spray foam compositions having a low post post-expansion rate. Also described herein are methods of making and using one-component spray foam compositions having a low post-expansion rate. Also described herein are dispensers for dispensing the one-component spray foam compositions having a low post-expansion rate. Compositions and methods in accordance with the present disclosure are useful in a wide variety of applications, and are particularly useful in construction applications.

An actuator is provided. The actuator includes a nozzle; a valve; a conduit in fluid communication with the valve at one end portion and in fluid communication with the nozzle at an opposite end portion; and a trigger operatively connected with the valve, wherein the trigger includes a first zone and a second zone, wherein the first and second zones are independently movable about a common axis.

An article has a can with a valve stem and a dispensing device, the dispensing device includes a cap over the valve stem, a hollow tube extending through a slot in the cap and attached to the valve stem, a sleeve slidably extending over the hollow tube, a lever hingedly attached to the cap and operatively engaging the sleeve, an elastic feature that provides a force or causes a force to be applied to the sleeve in a direction that tries to move the sleeve to a closed position, and a sealing gasket between the sleeve and hollow tube proximate to the exit end of the hollow tube; where the sleeve seals the hollow tube when in the closed position and displacing the lever towards the can simultaneously unseals the hollow tube and tilts the valve stem, and when released allows the sleeve to restore to a closed position.

An article with a can and a dispenser, the can having a valve with a valve cup, valve stem housing and depressible valve stem and the dispenser having a base, a straw attached to the base, a sleeve extending over at least a portion of the straw, a trigger hingedly attached to the base and/or straw at a hinge point with a trigger section that engages the sleeve above the hinge point and a trigger arm that extends below the hinge point, and a plunger extending through a side of the base and into a flow channel of the dispenser while maintaining fluid communication through and/or around the plunger within the flow channel of the dispenser where the dispenser is attachable to the can by inserting the stationary valve stem housing into the flow channel of the dispenser base while inserting the dispenser base into the valve cup.

Disclosed is a dual press spray head including: a head portion coupled to a top of a can having an internal space in which contents are accommodated; a discharge portion communicating with an inside of the head portion and discharging the contents to an outside; a gun-type portion mounted to the head portion and coupled to the discharge portion to operate the discharge portion; and a press-type portion mounted to the head portion and pressing the head portion in a downward direction of the can, wherein one side of the press-type portion comes into contact with the gun-type portion so that the head portion and the gun-type portion are pressurized simultaneously in the downward direction of the can to operate the discharge portion.

A fluid dispensing cover is described and which includes a main body defining an internal cavity, and a fluid dispensing passageway which extends through the main body; a selectively movable closure member which is pivotally mounted within the internal cavity and which is normally biased into an occluding position relative to the fluid dispensing passageway, and a movable force transmitting member which is operable to cause the selectively movable closure member to move from a normally occluding position to a non-occluding position so as to facilitate the selective dispensing of a source of fluid through the fluid dispensing aperture.

An actuator includes a nozzle; a valve; and a trigger operatively connected with the valve, wherein the trigger comprises an elastomeric material, wherein the trigger is configured to reciprocate from a forward position to a rearward position and back to a forward position upon actuation, wherein upon actuation from a forward position to a rearward position the trigger comprises a changing moment arm.

A case for securing an aerosol canister, including a body, including a first lateral wall having a first top edge and a first bottom edge, a bottom wall connected to the first lateral wall proximate the first bottom edge, and at least one cutout arranged in the first lateral wall proximate the first top edge, and a cap connected to the body, including a nozzle in fluid contact with a stem of the aerosol canister, and at least one gusset arranged to engage the at least one cutout, wherein in an unlocked position, the cap is displaceable in a first axial direction relative to the body to dispense the contents of the aerosol canister out of the nozzle, and in a locked position, the cap is not displaceable in the first axial direction.

Disclosed is a dual press spray head including: a head portion coupled to a top of a can having an internal space in which contents are accommodated; a discharge portion communicating with an inside of the head portion and discharging the contents to an outside; a gun-type portion mounted to the head portion and coupled to the discharge portion to operate the discharge portion; and a press-type portion mounted to the head portion and pressing the head portion in a downward direction of the can, wherein one side of the press-type portion comes into contact with the gun-type portion so that the head portion and the gun-type portion are pressurized simultaneously in the downward direction of the can to operate the discharge portion.

The invention relates to a dispensing head comprising an insert (20) provided with a cam surface, a ring (10) on which is articulated a lever (30) provided with a trigger, and at least one cam follower. The lever and the cam surface can rotate relative to each other between a closed position and an open position. According to the invention, the insert (20) is configured to be blocked in rotation relative to the container (80) and to the stem (81) of the valve, the ring is an adjustment ring (10) which is configured to rotate relative to the container (80) and to the insert (20) about the main axis (A) of the valve to bring the lever (30) and the cam surface (22) into an open or closed position. Tamper-evident means can be provided in the insert to ensure the integrity of the dispensing head before the first use.