A girth weld coating machine has an application head rotatable about a pipeline. A reservoir of coating material is carried on the application head and progressively dispenses coating material on to the girth weld. The coating material is applied to the pipe surface by a roller to spread and distribute the coating over the surface.

A brush (200) for delivering a glutinous substance (168) to a workpiece (170) from an end-effector (102) is disclosed. The brush (200) comprises a body (202), having a rotational axis (238) and comprising a first channel (208) that comprises an inlet (209) and a first outlet (280). The inlet (209) is coaxial with the rotational axis (238) and the first outlet (280) is offset from the rotational axis (238). The brush (200) also comprises tufts (222), extending from the body (202) and each comprising at least one bristle (220) and a tip (227). The brush (200) further comprises a first tube (210), communicatively coupled with the first outlet (280) of the first channel (208) of the body (202).

A brush (200) for delivering a glutinous substance (168) to a workpiece (170) from an end-effector (102) is disclosed. The brush (200) comprises a body (202), having a rotational axis (238) and comprising a first channel (208) that comprises an inlet (209) and a first outlet (280). The inlet (209) is coaxial with the rotational axis (238) and the first outlet (280) is offset from the rotational axis (238). The brush (200) also comprises tufts (222), extending from the body (202) and each comprising at least one bristle (220) and a tip (227). The brush (200) further comprises a first tube (210), communicatively coupled with the first outlet (280) of the first channel (208) of the body (202).

A fluid for application onto a substrate is provided in a cavity of a hollow cylindrical application roller that has porous roller wall. Before reaching the transfer point to the substrate, fluid is regionally selectively pushed back away from the outer shell surface of the application roller, into the porous roller wall, by a knockback pressure, in order to regionally selectively produce the effect that, at the transfer point, fluid is located at the outer shell surface of the application roller or no fluid is located at the outer shell surface of the application roller. A regionally selective application of fluid onto a substrate may thus be efficiently produced.

A method for applying a product by roller on a surface of a substrate (112) transported horizontally with respect to an application head (111, 111′) is discloses. The method includes moving the application head (111, 111′) immediately from a lowered position of the application head (111, 111′), wherein the application roller (122, 122′) applies the product in a predetermined position of the surface of the substrate, to a raised position of the application head (111, 111′), wherein the application roller (122, 122′) does not apply product; or vice versa. An application system using the method for applying a product by roller is also disclosed.

An apparatus for coating carpet webs in a coating apparatus with varying adhesives includes a controller, one or more sensors for detecting a volume of a puddle of the adhesive pooled in front of an application roller, and an electronic valve in fluid communication with each of a plurality of mixers. The electronic valve directs flow of the adhesive from any of the mixers to the coating apparatus. To switch from one of the adhesives to new adhesive as a next carpet web passes through the coating apparatus, the controller calculates a remaining length of the carpet web that can be coated with the adhesive in the puddle of adhesive based on the volume of the puddle, so that the puddle of the adhesive coats the carpet web, and then proximate a seam to the next carpet web, the new adhesive begins to coat the next carpet web.

An apparatus for coating carpet webs in a coating apparatus with varying adhesives includes a controller, one or more sensors for detecting a volume of a puddle of the adhesive pooled in front of an application roller, and an electronic valve in fluid communication with each of a plurality of mixers. The electronic valve directs flow of the adhesive from any of the mixers to the coating apparatus. To switch from one of the adhesives to new adhesive as a next carpet web passes through the coating apparatus, the controller calculates a remaining length of the carpet web that can be coated with the adhesive in the puddle of adhesive based on the volume of the puddle, so that the puddle of the adhesive coats the carpet web, and then proximate a seam to the next carpet web, the new adhesive begins to coat the next carpet web.

An adhesive dispenser for a die bonding apparatus has an adhesive dispenser head configured to dispense adhesive onto bonding pads of a substrate, and a head conveyer configured to convey the adhesive dispenser head along orthogonal first and second axes for dispensing the adhesive onto target dispensing positions on the bonding pads. The head conveyor includes a first linear positioning motor operative to convey the adhesive dispenser head along the first axis and a rotary positioning motor coupled to the first linear positioning motor which is operative to rotate the adhesive dispenser head. The rotary positioning motor is configured to cooperate with the first linear positioning motor to convey the adhesive dispenser head along the second axis to the target dispensing positions.

An adhesive dispenser for a die bonding apparatus has an adhesive dispenser head configured to dispense adhesive onto bonding pads of a substrate, and a head conveyer configured to convey the adhesive dispenser head along orthogonal first and second axes for dispensing the adhesive onto target dispensing positions on the bonding pads. The head conveyor includes a first linear positioning motor operative to convey the adhesive dispenser head along the first axis and a rotary positioning motor coupled to the first linear positioning motor which is operative to rotate the adhesive dispenser head. The rotary positioning motor is configured to cooperate with the first linear positioning motor to convey the adhesive dispenser head along the second axis to the target dispensing positions.

A thin-film coating applicator assembly is disclosed for coating substrates in outdoor applications. The innovative thin-film coating applicator assembly is adapted to apply performance enhancement coatings on installed photovoltaic panels and glass windows in outdoor environments. The coating applicator is adapted to move along a solar panel or glass pane while applicator mechanisms deposit a uniform layer of liquid coating solution to the substrate's surface. The applicator assembly comprises a conveyance means disposed on a frame. Further disclosed are innovative applicator heads that comprise a deformable sponge-like core surrounded by a microporous layer. The structure, when in contact with a substrate surface, deposits a uniform layer of coating solution over a large surface.