A glue dispensing device includes a glue container, a first driver, an elastic member, a connecting plate, and a first limiting plate. The glue container includes a containing main body and a glue dispensing head. The glue dispensing head includes a first receiving groove and a dispensing opening. The containing main body includes a second receiving groove and a third receiving groove. The first driver is arranged in the glue container, and includes a piston, a driving portion, and a piston rod. The elastic member is arranged in the second receiving groove. The connecting plate is fixed in the first receiving groove and located at a side of the piston. A first through hole penetrates the connecting plate. The first limiting plate is movably received in the third receiving groove and fixedly sleeved on the piston rod. The elastic member abuts between the connecting plate and the first limiting plate.

Apparatus (1) for applying paint comprises a device (40) for applying paint that comprises a plurality of spray guns (26) that is movable along a closed path having two parallel sides connected by two circular arcs, a rotating joint (43) for supplying paint provided with a distributor and comprising a plurality of tube-support chains (44), each tube support chain (44) connecting the distributor of the one rotating joint (43) for dispensing the painting product to a respective gun of said spray guns (26), in which each tube support chain (44) has an inverted U-shape provided with two ends, of which—the first end is connected to a first rotating support (61), which is connected to the rotating joint (43) and follows a circular trajectory, while—the second end is connected to a second rotating support (62), which is connected to a support arm (41) of a respective gun (26) and follows in use the trajectory defined by said closed path.

Apparatus (1) for applying paint comprises a device (40) for applying paint that comprises a plurality of spray guns (26) that is movable along a closed path having two parallel sides connected by two circular arcs, a rotating joint (43) for supplying paint provided with a distributor and comprising a plurality of tube-support chains (44), each tube support chain (44) connecting the distributor of the one rotating joint (43) for dispensing the painting product to a respective gun of said spray guns (26), in which each tube support chain (44) has an inverted U-shape provided with two ends, of which—the first end is connected to a first rotating support (61), which is connected to the rotating joint (43) and follows a circular trajectory, while—the second end is connected to a second rotating support (62), which is connected to a support arm (41) of a respective gun (26) and follows in use the trajectory defined by said closed path.

A faucet cleaning assembly includes a pouch which has an inner layer and an outer layer. The inner layer is comprised of a fluid impermeable material defining an interior of the pouch thereby facilitating the interior of the pouch to contain an acidic solution. The pouch is positionable around a faucet thereby facilitating the acidic solution to dissolve mineral deposits on the faucet. A band is integrated into the pouch and a drawstring is integrated into the band. The band is collapsible when the drawstring is tightened for retaining the pouch on the faucet. A lock is slidably disposed on the drawstring to retain the drawstring in a tightened condition for retaining the band around the faucet.

A faucet cleaning assembly includes a pouch which has an inner layer and an outer layer. The inner layer is comprised of a fluid impermeable material defining an interior of the pouch thereby facilitating the interior of the pouch to contain an acidic solution. The pouch is positionable around a faucet thereby facilitating the acidic solution to dissolve mineral deposits on the faucet. A band is integrated into the pouch and a drawstring is integrated into the band. The band is collapsible when the drawstring is tightened for retaining the pouch on the faucet. A lock is slidably disposed on the drawstring to retain the drawstring in a tightened condition for retaining the band around the faucet.

A paint sprayer includes an end bell, a motor connected to the end bell, a pump drive connected to the end bell, a pair of protrusions attached to an extending from the end bell such that each protrusion is cantilevered from the end bell, and a pump assembly comprising a pair of mounting holes and containing a piston. The pair of mounting holes is adapted to receive and slide onto the pair of protrusions to mount the pump assembly on the end bell as well as slide off of the pair of protrusions to remove the pump assembly from the end bell. The pump drive is configured to covert rotational motion output by the motor to reciprocal motion. The pump assembly is configured to pump paint when reciprocated by the pump drive while mounted on the end bell.

A paint sprayer includes an end bell, a motor connected to the end bell, a pump drive connected to the end bell, a pair of protrusions attached to an extending from the end bell such that each protrusion is cantilevered from the end bell, and a pump assembly comprising a pair of mounting holes and containing a piston. The pair of mounting holes is adapted to receive and slide onto the pair of protrusions to mount the pump assembly on the end bell as well as slide off of the pair of protrusions to remove the pump assembly from the end bell. The pump drive is configured to covert rotational motion output by the motor to reciprocal motion. The pump assembly is configured to pump paint when reciprocated by the pump drive while mounted on the end bell.

In one example, a fluid flow restrictor has a housing outlet offset from a housing inlet along a fluid flow direction so as to define a channel therebetween. A rotatable body that is disposed in the channel defines a bore that extends entirely therethrough such that the bore defines a bore inlet and a bore outlet. The flow restrictor has an interior surface disposed in the bore that defines an orifice having a cross-sectional dimension that is less than a cross-sectional dimension of the channel such that the orifice can restrict a flow of fluid as the fluid flows between the housing inlet and outlet. The rotatable body is rotatable between 1) a first orientation, where the bore outlet is offset from the bore inlet along the fluid flow direction, and 2) a second orientation, where the bore inlet is offset from the bore outlet along the fluid flow direction.

In one example, a fluid flow restrictor has a housing outlet offset from a housing inlet along a fluid flow direction so as to define a channel therebetween. A rotatable body that is disposed in the channel defines a bore that extends entirely therethrough such that the bore defines a bore inlet and a bore outlet. The flow restrictor has an interior surface disposed in the bore that defines an orifice having a cross-sectional dimension that is less than a cross-sectional dimension of the channel such that the orifice can restrict a flow of fluid as the fluid flows between the housing inlet and outlet. The rotatable body is rotatable between 1) a first orientation, where the bore outlet is offset from the bore inlet along the fluid flow direction, and 2) a second orientation, where the bore inlet is offset from the bore outlet along the fluid flow direction.

Buildup in a plumbing fixture is removed by providing a bag containing a quantity of concentrated fixture cleaning chemicals and then securing the bag to the fixture to be cleaned. After securing the bag to the fixture, the bag is filled with water from the fixture which mixes with the concentrated chemicals to create a cleaning solution that covers the fixture, and then the fixture is allowed to soak in the created cleaning solution to thereby dissolve the buildup.