A dilute phase powder pump for pumping powder, particularly coating powder, from a powder reservoir to a powder spray-coating device, includes a powder inlet, which is or can be flow-connected to the powder reservoir, and a powder outlet, which is or can be flow-connected to the powder spray-coating device. The dilute phase powder pump also has a powder pumping injector with a motive fluid nozzle and a converging inlet nozzle, and has a valve device for optionally interrupting a flow connection between the powder inlet (80) of the dilute phase powder pump and a powder inlet of the motive fluid nozzle.

A pump for use with a material sprayer includes a cylinder, a piston, a pump head, first and second check valves, and an elbow connected to the cylinder. The cylinder and the piston are coaxial with a pump axis. The pump head is configured to make a mechanical connection with the reciprocating drive mechanism so as to allow the reciprocating drive mechanism to reciprocate the piston along the pump axis. The elbow includes a first end, a second end, and an inner fluid channel. The first end is configured to make a fluid connection with the hopper. The second end is configured to be fixed with respect to the cylinder. The inner fluid channel extends from the first end to the second end. The pump head and the first end of the elbow are configured to make mechanical and fluid connections with a single linear motion of the pump.

A powder conveyor for conveying coating powder includes a housing for a container that includes a top part of the housing with a powder inlet and an upper ledge as well as a bottom part of the housing with a powder outlet and a lower ledge. The upper ledge and/or the lower ledge is/are situated at an acute angle with respect to the horizontal line. A tube is provided whose tube ends are open such that the powder can pass through the tube. The tube is made of a porous air-permeable material and is clamped, on the end face side, between the upper ledge and the lower ledge. A powder inlet valve is connected to the powder inlet of the top part of the housing. A powder outlet valve is connected to the powder outlet of the bottom part of the housing.

A conveying device is provided for the conveying of coating powder and includes a powder reservoir container that includes, on the bottom, a powder outlet channel. The powder outlet channel is connected to a first powder conveyor for conveying powder out of the powder reservoir container back to a powder storage container. Moreover, a second powder conveyor is provided for conveying powder out of the powder reservoir container to a powder applicator.

A melter melts particulate hot melt adhesive into a liquefied form. The melter includes a heated receiving device having an interior with an inlet that receives the particulate hot melt adhesive and an outlet. The heated receiving device melts the particulate hot melt adhesive and directs the liquified hot melt adhesive to the outlet. A prepackaged container holds a supply of the particulate hot melt adhesive and includes an outlet. A particulate hot melt adhesive feed device allows the particulate hot melt adhesive to be directed from the outlet of the prepackaged container to the inlet of the heated receiving device.

A rewinding waterwheel includes a secondary body, a main body and guide members. The main body includes a rewinding waterwheel frame, a hub ring shaft and a water pipe wound around the hub ring shaft. The hub ring shaft is installed onto the rewinding waterwheel frame and rotatable. The secondary body includes a waterwheel frame and a sprinkler head mounted onto the waterwheel frame. The water pipe is fixed and communicated to the sprinkler head; the guide member is installed on the ground; the water pipe is in a rolling contact with the outer circumferential surface of the guide member. In a water spray method of the rewinding waterwheel, a traveling path is designed to achieve automatic lawn irrigation by the guide member in contact with the water pipe and to change the irrigation speed by the transmission gearbox to control water volume and save energy.

The present disclosure describes a system and method of depositing ceramic or ceramic composite coatings on the inside surface area of a tubular shape. The system and method described herein can provide an interior coating for tubes and pipes to provide wear resistance, abrasion resistance, and anti-scaling effects.

A melter for heating and melting particulate hot melt adhesive into a liquefied form is disclosed. The melter includes a heated receiving device having an interior with an inlet configured to receive the particulate hot melt adhesive and an outlet. A flexible hopper holds a supply of the particulate hot melt adhesive and a particulate hot melt adhesive feed device allows the particulate hot melt adhesive to be directed from the flexible hopper to the inlet of the heated receiving device.

The present invention provides a vibrating sieving apparatus and a real time powder sieving system. The apparatus includes a powder pump assembly connected to a vibrating device through a powder suction tube wherein the vibrating device (120) is configured for real time sieving of powder just before spraying. The apparatus further includes a housing (130) connected to the vibrating device (120) wherein the housing (130) includes a sieve section (140) and an anti blinding section (135).

A feeding unit for a powdering station of powder coating product including a fluidized coating product reservoir, a support for receiving a coating product container, a pump for feeding the reservoir from the container and a casing, which defines an internal volume for receiving the reservoir and which is provided with an opening for access to the internal volume. The support is movable in rotation or circular translation about at least one axis of rotation, in both directions, between a first loading/unloading position, in which the support projects outside the internal volume of the casing, through the access opening, and a second coating product transfer position, wherein the support and a container in place on the support are included in this internal volume.