Abstract: A device for applying a viscous material to workpieces includes a housing, an application channel extending in the housing up to an outlet opening, and a needle valve for opening and closing the application channel at a valve seat. An actuating element is mounted in the housing for rotation about a rotational axis extending parallel to a longitudinal direction in which the valve needle of the needle valve is movable relative to the housing. The actuating element has, in the radial lateral surface thereof, a guide groove extending circumferentially all around and curved in the axial direction in which at least one pin extending in the radial direction engages. The valve needle is connected to the actuating element or the at least one pin so that rotation of the actuating element about the rotational axis causes movement of the valve needle relative to the housing in the longitudinal direction.

Abstract: An apparatus for conveying viscous material from a container having a base and an upwardly-extending shell includes: a follower plate movable towards and away from the base adjacent to the shell inner surface facing the interior and having an outlet and at least one deaeration and/or aeration opening; a deaerator for sucking air through the deaeration opening(s) and/or an aerator for introducing compressed air through the aeration opening(s); a lifting/lowering device for lifting/lowering the plate; a control for alternately controlling the lifting/lowering device in a movement mode and the deaerator or aerator in a deaeration or aeration mode, the lifting/lowering device having at least one vertical holding rod connected to a plate upper side, the plate being vertically movable in a limited manner relative to the rod; and a sensor for detecting and transmitting to the control upper and lower end plate positions relative to the rod.

Abstract: A method for conveying viscous material out of a barrel-like container open towards the top and having a bottom and a circumferential wall extending from bottom to top, uses a device having a follower plate for closing the container. The plate has a circumferential wiper ring having a radially outwardly protruding contact portion for contacting an inner container wall face facing the plate. A variable pressing force can be applied to press the contact portion against the inner face. The plate, following a decreasing material level and resting on the material surface, is moved bottomward, and, after the container is emptied, is moved away from the bottom, and the contact portion is pressed sealingly against the inner face while the plate moves bottomward. The sealing effect between the wiper ring and the container wall is suspended during plate movement away from the bottom by reducing the pressing force.

Abstract: The invention relates to an apparatus (10, 110) for the conveying of viscous material from a drum-like container (12), which has a container bottom (14) and a circumferential container wall (18) extending from the container bottom (14) to an upper rim (16) of the container, which is open at the upper rim (16) of the container, the apparatus having, for closing of the container (12), a follower plate (26) having a material outlet (28) attached to a conveyor pump (30), wherein the follower plate (26) can be moved up and down in the container (12) while being in sealing contact against an inside face of the container wall (18) turned toward it, and having a lifting device (22) for raising and lowering of the follower plate (26), wherein the lifting device (22) has a drive unit.

Abstract: A device for applying a viscous material to workpieces includes a housing, an application channel extending in the housing up to an outlet opening, and a needle valve for opening and closing the application channel at a valve seat. An actuating element is mounted in the housing for rotation about a rotational axis extending parallel to a longitudinal direction in which the valve needle of the needle valve is movable relative to the housing. The actuating element has, in the radial lateral surface thereof, a guide groove extending circumferentially all around and curved in the axial direction in which at least one pin extending in the radial direction engages. The valve needle is connected to the actuating element or the at least one pin so that rotation of the actuating element about the rotational axis causes movement of the valve needle relative to the housing in the longitudinal direction.

Abstract: An apparatus for conveying viscous material from a drum-like container with a container bottom and a circumferential container wall extending from the container bottom to a container upper side and being open at the container upper side has, for closing the container a follower plate having a material outlet attached to a conveyor pump. The follower plate has an annularly circumferential wiper ring that has a radially outwardly extending contacting part for contact against an inside face, turned toward the follower plate, of the container wall. The contacting part can be pressurized with a variable pressing force for pressing against the inside face (36) of the container wall. The follower plate is mounted by moans of at least one vertically extending retaining rod on a horizontally extending crosspiece mounted on or close to a first end on a lifting device for raising and lowering of the crosspiece. Its second end is free.

Abstract: An apparatus for the conveying of viscous material from a container has a conveyor pump, which has a conveyor cylinder and a conveyor piston that can be moved forward and back in the conveyor cylinder, and has a measuring device for measurement of the speed of the conveyor piston. The measuring device has a control unit for control of the conveying of the viscous material in dependence on the measured speed of the conveyor piston and a waste line is branched off from a conveying line for the viscous material, which is connected to the conveyor pump, and using the control unit the conveying line can be blocked and the waste line can be released.

Abstract: The invention relates to an apparatus (10, 110) for the conveying of viscous material from a drum-like container (12), which has a container bottom (14) and a circumferential container wall (18) extending from the container bottom (14) to an upper rim (16) of the container, which is open at the upper rim (16) of the container, the apparatus having, for closing of the container (12), a follower plate (26) having a material outlet (28) attached to a conveyor pump (30), wherein the follower plate (26) can be moved up and down in the container (12) while being in sealing contact against an inside face of the container wall (18) turned toward it, and having a lifting device (22) for raising and lowering of the follower plate (26), wherein the lifting device (22) has a drive unit.

Abstract: The invention relates to an apparatus (10) for the conveying of viscous material from a drum-like container (12), which has a container bottom (14) and a circumferential container wall (18), extending from the container bottom (14) to a container upper side (16) and is open at the container upper side (16), with, for closing of the container (12), a follower plate (20) having a material outlet (26) attached to a conveyor pump (40), wherein the follower plate (20) is provided with an annularly circumferential wiper ring (28), wherein the wiper ring (28) has a radially outwardly extending contacting part (34) for contact against an inside face (36), turned toward the follower plate (20), of the container wall (18), and wherein the contacting part (34) can be pressurized with a variable pressing force for pressing against the inside face (36) of the container wall (18).

Abstract: A method for conveying viscous material out of a barrel-like container open towards the top and having a bottom and a circumferential wall extending from bottom to top, uses a device having a follower plate for closing the container. The plate has a circumferential wiper ring having a radially outwardly protruding contact portion for contacting an inner container wall face facing the plate. A variable pressing force can be applied to press the contact portion against the inner face. The plate, following a decreasing material level and resting on the material surface, is moved bottomward, and, after the container is emptied, is moved away from the bottom, and the contact portion is pressed sealingly against the inner face while the plate moves bottomward. The sealing effect between the wiper ring and the container wall is suspended during plate movement away from the bottom by reducing the pressing force.

Abstract: A cleaning tool for a floor cleaning appliance is provided, including a main body carrying a cleaning cover which is subject to wear, and including a signal transmitter which provides a wireless signal in dependence upon the degree of wear of the cleaning cover. To be able to detect in a cost-effective manner when a maximum admissible degree of wear of the cleaning cover is reached, the signal transmitter is of rigid construction and fixed to a movable carrying part, the carrying part being held on the main body and being movable from a normal position to an evasive position against a restoring force, the carrying part protruding further from the main body in the normal position than in the evasive position, and the carrying part and/or the signal transmitter contacting the floor surface to be cleaned when a maximum admissible degree of wear of the cleaning cover is reached.

Abstract: A clip connection for coupling at least two components together, e.g., for fastening a first component to a second component in a joining direction, may include a plug-in pin arranged on the first component and having a longitudinal center axis extending parallel to the joining direction. The pin may include a conical longitudinal section that tapers in the joining direction. A radially resilient engagement hook may be provided engageable with an engagement contour. A sleeve may be arranged on the second component and have a longitudinal center axis extending parallel to the joining direction. The sleeve may include a plurality of radially resilient spring elements having a free end that supports the plurality of spring elements on the conical longitudinal section of the pin under radial preload when the sleeve and the pin are plugged together. The pin may be pluggable into the sleeve in the joining direction.

Abstract: A clip connection for coupling at least two components together, e.g., for fastening a first component to a second component in a joining direction, may include a plug-in pin arranged on the first component and having a longitudinal centre axis extending parallel to the joining direction. The pin may include a conical longitudinal section that tapers in the joining direction. A radially resilient engagement hook may be provided engageable with an engagement contour. A sleeve may be arranged on the second component and have a longitudinal centre axis extending parallel to the joining direction. The sleeve may include a plurality of radially resilient spring elements having a free end that supports the plurality of spring elements on the conical longitudinal section of the pin under radial preload when the sleeve and the pin are plugged together. The pin may be pluggable into the sleeve in the joining direction.

Abstract: A cleaning tool for a floor cleaning appliance is provided, including a main body carrying a cleaning cover which is subject to wear, and including a signal transmitter which provides a wireless signal in dependence upon the degree of wear of the cleaning cover. To be able to detect in a cost-effective manner when a maximum admissible degree of wear of the cleaning cover is reached, the signal transmitter is of rigid construction and fixed to a movable carrying part, the carrying part being held on the main body and being movable from a normal position to an evasive position against a restoring force, the carrying part protruding further from the main body in the normal position than in the evasive position, and the carrying part and/or the signal transmitter contacting the floor surface to be cleaned when a maximum admissible degree of wear of the cleaning cover is reached.