Abstract: A damping system for a linear actuator, and a linear actuator. The damping system has a first sub-assembly with a first axial stop surface and a second axial stop surface. A spring-elastic spring arrangement has an initial position at a predetermined pretensioning and is axially in contact with the first and second stop surface. A second sub-assembly is mounted axially displaceable relative to the first sub-assembly and is configured to lift the spring arrangement away from the first stop surface or from the second stop surface in the case of an axial movement relative to the first sub-assembly.

Abstract: A damping system for a linear actuator, and a linear actuator. The damping system has a first sub-assembly with a first axial stop surface and a second axial stop surface. A spring-elastic spring arrangement has an initial position at a predetermined pretensioning and is axially in contact with the first and second stop surface. A second sub-assembly is mounted axially displaceable relative to the first sub-assembly and is configured to lift the spring arrangement away from the first stop surface or from the second stop surface in the case of an axial movement relative to the first sub-assembly.

Abstract: A mounting plate for mounting a lifting unit in a lifting column which lifting column includes at least two guide tube segments that are insertable substantially concentrically one-into-another and that are movable with respect to one another along their direction of extension in order to change the length of the lifting column. The mounting plate includes a motor-accommodating structure for a drive motor of the lifting unit and an accommodating structure, different from the motor-accommodating structure, for a support component of the lifting unit that is connectable in a rotationally fixed manner to mounting plate. The support component is disposed on a side of the lifting unit remote from or facing away from the drive motor. Also, a lifting column including the mounting plate.

Abstract: A structural unit includes at least one housing part configured to be mounted on an exterior surface of a linear actuator and at least one sensor displaceably supported relative to the housing part. The linear actuator may include a case having a longitudinal axis and a longitudinal slot and a ball nut mounted in an interior of the case for translational movement inside the case. The housing may be mounted on an external surface of the case over the longitudinal slot, and a threaded element may extend from a first end of the housing to a second end of the housing. The sensor may be supported by the threaded element such that rotating the threaded element moves the sensor along the threaded element, and the sensor may be configured to sense a position of the ball nut.

Abstract: An electromechanical actuator includes a drive motor having rotatable drive shaft. A magnetic element is disposed on the drive shaft. A rotary-to-linear motion converter is driven by the rotatable drive shaft and includes a non-rotating actuator body that is linearly movable in a traveling direction. A Hall-effect sensor is disposed in a stationary manner proximal to the magnetic element disposed on the drive shaft. A controller is in electronic communication with the Hall-effect sensor. The controller counts the number of impulses output by the Hall-effect sensor when the drive shaft rotates relative to the Hall-effect sensor, and turns off the drive motor after a predetermined number of impulses have been counted since the start-up of the non-rotating actuator body. The controller may also count the number of times that the current of the drive motor exceeds a predetermined maximum value and store this counted value in a memory element.

Abstract: A lifting column includes first and second lifting column components, one slidably receivable in the other, each having mutually facing guide surfaces. The first lifting column component has first and second openings in its guide surface, and first and second guide components mounted in these openings. Each of the guide components includes an attachment structure that projects into one of the first and second openings and a substantially planar guide section connected to the attachment structure that overlies a guide surface of the first lifting component and that is configured to abut on the guide surface of the second lifting column component. The first and second guide components are configured such that they are in contact with each other when the attachment structures are mounted the openings.

Abstract: A device for providing an electrical or fluid junction includes a connecting structure such as a plate that it is connectable with an end of a columnar component having a hollow profile, and a junction structure such as a housing that is connected to the connecting structure and that includes at least one opening for providing an electrical or fluid junction for an external plug and a further opening for routing a line from the electrical junction into the columnar component.

Abstract: A profile slider is attachable to a first profile element for guiding the first profile element linearly relative to a second profile element in a movement direction, and the profile slider includes a guide structure having first and second spaced sliding surfaces and an adjustment structure configured to adjust a distance between the first and second sliding surfaces so that a spacing of the sliding surfaces can be set based on the width of a guide groove of the second profile element. Also a lifting column including the profile slider and a method of assembling the lifting column.

Abstract: A lifting column includes first and second lifting column components, one slidably receivable in the other, each having mutually facing guide surfaces. The first lifting column component has first and second openings in its guide surface, and first and second guide components mounted in these openings. Each of the guide components includes an attachment structure that projects into one of the first and second openings and a substantially planar guide section connected to the attachment structure that overlies a guide surface of the first lifting component and that is configured to abut on the guide surface of the second lifting column component. The first and second guide components are configured such that they are in contact with each other when the attachment structures are mounted the openings.

Abstract: A cable strain relief holder (1) for a spirally extending cable (2) is disclosed. In order to be able to fix a cable in a simple manner for the purpose of strain relief, the holder comprises a pillar element (3) which extends in an axial direction (a) and has an outer circumferential surface (4), and at least two retaining elements (5, 6), which are disposed extending radially (r) on the outer circumferential surface (4), wherein the at least two retaining elements (5, 6) are disposed at different axial positions and at different circumferential positions of the pillar element (3).

Abstract: An electromechanical actuator includes a drive motor having rotatable drive shaft. A magnetic element is disposed on the drive shaft. A rotary-to-linear motion converter is driven by the rotatable drive shaft and includes a non-rotating actuator body that is linearly movable in a traveling direction. A Hall-effect sensor is disposed in a stationary manner proximal to the magnetic element disposed on the drive shaft. A controller is in electronic communication with the Hall-effect sensor. The controller counts the number of impulses output by the Hall-effect sensor when the drive shaft rotates relative to the Hall-effect sensor, and turns off the drive motor after a predetermined number of impulses have been counted since the start-up of the non-rotating actuator body. The controller may also count the number of times that the current of the drive motor exceeds a predetermined maximum value and store this counted value in a memory element.

Abstract: A device for providing an electrical or fluid junction includes a connecting structure such as a plate that it is connectable with an end of a columnar component having a hollow profile, and a junction structure such as a housing that is connected to the connecting structure and that includes at least one opening for providing an electrical or fluid junction for an external plug and a further opening for routing a line from the electrical junction into the columnar component.

Abstract: A mounting plate for mounting a lifting unit in a lifting column which lifting column includes at least two guide tube segments that are insertable substantially concentrically one-into-another and that are movable with respect to one another along their direction of extension in order to change the length of the lifting column. The mounting plate includes a motor-accommodating structure for a drive motor of the lifting unit and an accommodating structure, different from the motor-accommodating structure, for a support component of the lifting unit that is connectable in a rotationally fixed manner to mounting plate. The support component is disposed on a side of the lifting unit remote from or facing away from the drive motor. Also, a lifting column including the mounting plate.

Abstract: Polymers of compounds having the formula ##STR1## wherein n and m are, individually, 0 or 1, X is an anion, R.sup.1 is hydrogen, methyl or phenyl and R.sup.2, R.sup.3 and R.sup.4 are, individually, hydrogen, alkyl, aryl, alkaryl or aralkyl, and methods for their production, are disclosed.

Abstract: Compounds having the formula ##STR1## wherein n and m are, individually, 0 or 1, X is an anion, R' is hydrogen, methyl or phenyl and R.sup.2, R.sup.3 and R.sup.4 are, individually, hydrogen, alkyl, aryl, alkaryl or aralkyl, polymers thereof and methods for their production, are disclosed.

Abstract: Compounds having the formulae ##STR1## wherein Y is hydroxyl or R.sup.2 O, wherein R.sup.2 is alkyl, aryl or aralkyl, R' is hydrogen, methyl or phenyl and Z is ##STR2## wherein n and m are, individually, 0 or 1, X is a halogen, R.sup.3 is alkyl, hydroxyalkyl, or alkoxyalkyl and R.sup.4, R.sup.5 and R.sup.6 are, individually, hydrogen, alkyl, aryl, alkaryl or aralkyl, and methods for their production, are disclosed.

Abstract: Compounds having the formula ##STR1## wherein Y is R.sup.2 O, R.sup.2 being alkyl (C.sub.1 -C.sub.10), R.sup.1 is hydrogen or methyl and Z is ##STR2## WHEREIN M IS 0 OR 1, X is halogen, R.sup.4 and R.sup.5 are, individually, hydrogen, alkyl (C.sub.1 -C.sub.4), aryl (C.sub.6 -C.sub.10), alkaryl (C.sub.7 -C.sub.11) or aralkyl (C.sub.7 -C.sub.11) and R.sup.6 is alkyl (C.sub.1 -C.sub.4), aryl (C.sub.6 -C.sub.10), alkaryl (C.sub.7 -C.sub.11) or aralkyl (C.sub.7 -C.sub.11), are disclosed.