Abstract: The invention relates to a portable radio remote control transmitter with a splash-proof and dust-tight housing, which accommodates a control unit and comprises an operator control panel with a number of buttons for entering control commands. In order to develop the radio remote control transmitter in such a way that the risk of erroneous operation is reduced, it is proposed according to the invention that at least one button has an associated illuminating element for illuminating the button.

Abstract: The invention relates to a portable radio remote control transmitter with a splash-proof and dust-tight housing, which accommodates a control unit and comprises an operator control panel with a number of buttons for entering control commands. In order to develop the radio remote control transmitter in such a way that the risk of erroneous operation is reduced, it is proposed according to the invention that at least one button has an associated illuminating element for illuminating the button.

Abstract: A method for operating a radio remote control system having a transmitting unit and a receiving unit, composed of: following the termination of a radio connection between the transmitting unit and the receiving unit, modifying at least one transmitting or receiving parameter of the transmitting unit or the receiving unit with respect to a standard value in such a way that the establishment of a new radio connection is only possible if the distance between the transmitting unit and the receiving unit does not exceed a predetermined value; and following the establishment of a new radio contact with the modified parameter in effect, resetting the respective parameter to the standard value.

Abstract: A plastic joint for a selector pin that can be moved around at least one swiveling axis comprises an inner, first joint element and an outer, second joint element for mounting in a device. The first joint element includes a first plastic material with axially opposite end sections, the second joint element includes a second plastic material with borings that lie in the swiveling axis in which the end sections are held, forming the swiveling axis. The joint elements are spanned by a plastic sealing element as a seal. The joint elements can be produced individually or as a unit via injection molding processes.

Abstract: An injection molded element in combination with at least one electrical contact element embedded in the injection molded element. The injection molded element forms a wall element of an electric or electronic device.

Abstract: A remote controlled industrial equipment, e.g., a construction unit with at least one transmitter, which includes at least a second receiver that is operable parallel to a first receiver. The receivers are arranged with parts of the industrial equipment widely displaced apart from one another such that a control connection from the transmitter to at least one of the receivers can be established for the purpose of converting control signals of the transmitter into working movements of the industrial equipment. The receivers can therefore establish a continuous control connection up to the respective receiver that finally controls the working units of the industrial equipment, whereby simple and safe control remains ensured even under unfavourable external conditions.

Abstract: A control element for a device, specifically a push-button or switch, is provided on at least part of its visible surface with a luminescent substance, which is admixed to the synthetic material of the control element. The luminescent substance provides, over a certain period of time, a luminous density with decreasing intensity, which compared to areas in the vicinity and/or applied symbols, produces an at least sufficiently visible contrast in order to make the control element stand out recognizably.

Abstract: A marking element for marking the function of a control element of an electric or electronic device with numbers or pictorial symbols. The marking element is composed of a first section composed of a first film having a luminescent layer to be applied to a control area of the control element, and a number or pictorial symbol is provided on the first section.

Abstract: A process for the control of a plurality of industrial, construction or mobile hydraulic machines, such as cranes, travelers and similar machines, by means of n remote control units (S1 . . . Sn), allocates the remote control units to k concentrators (K1 . . . Kk), whereby the number (k) of concentrators is smaller than the number (n) of remote control units. Preferably, only a single concentrator (K) is provided. The concentrator (K) provides the signals from the remote control units with a suitable address and transmits them via a common data network, such as the power grid (AC), to which the concentrator (K) and control devices (ST1 . . . STm) for the m power units of the industrial machines to be controlled are connected in such a way that a signal is recognized by its address and converted into the control signal for activation of the respective power unit.

Abstract: A manual control device composed of: a housing; a joystick; and a joint supporting the joystick in the housing to enable the joystick to pivot about two mutually orthogonal axes relative to the housing. The joint is an elastic molded plastic part composed of an interior portion secured to the joystick, a peripheral portion secured to the housing and a connecting portion extending between, and connecting, the interior portion and the peripheral portion. The interior portion has the form of a first cylinder and the peripheral portion has the form of a second cylinder, the first and second cylinders being concentric with one another when the joystick is in a neutral position. The connecting portion has a frustoconical shape when the joystick is in the neutral position and is stressed when the joystick is pivoted away from the neutral position.

Abstract: A remote control system, particularly for remotely controlling industrial equipment, has a sensor that detects the operator's safety-relevant medical data and transmits them as a control signal to a control circuit in a transmitter or receiver. The control circuit triggers a predefinable control sequence when the value of the control signal exceeds or falls below at least one predefinable value. A malfunction, especially of the “human component” of the total system, can be reliably detected as soon as it becomes safety relevant, i.e., as soon as there is a danger that the operator might no longer be able to control the industrial equipment properly and reliably with the remote control system.

Abstract: A manual control device composed of: a housing; a joystick; and a joint supporting the joystick in the housing to enable the joystick to pivot about two mutually orthogonal axes relative to the housing. The joint is an elastic molded plastic part composed of an interior portion secured to the joystick, a peripheral portion secured to the housing and a connecting portion extending between, and connecting, the interior portion and the peripheral portion. The interior portion has the form of a first cylinder and the peripheral portion has the form of a second cylinder, the first and second cylinders being concentric with one another when the joystick is in a neutral position. The connecting portion has a frustoconical shape when the joystick is in the neutral position and is stressed when the joystick is pivoted away from the neutral position.

Abstract: An injection molded element in combination with at least one electrical contact element embedded in the injection molded element. The injection molded element forms a wall element of an electric or electronic device.

Abstract: A method for operating a radio remote control system having a transmitting unit and a receiving unit, composed of: following the termination of a radio connection between the transmitting unit and the receiving unit, modifying at least one transmitting or receiving parameter of the transmitting unit or the receiving unit with respect to a standard value in such a way that the establishment of a new radio connection is only possible if the distance between the transmitting unit and the receiving unit does not exceed a predetermined value; and following the establishment of a new radio contact with the modified parameter in effect, resetting the respective parameter to the standard value.

Abstract: A remote control system, particularly for remotely controlling industrial equipment, has a sensor that detects the operator's safety-relevant medical data and transmits them as a control signal to a control circuit in a transmitter or receiver. The control circuit triggers a predefinable control sequence when the value of the control signal exceeds or falls below at least one predefinable value. A malfunction, especially of the “human component” of the total system, can be reliably detected as soon as it becomes safety relevant, i.e., as soon as there is a danger that the operator might no longer be able to control the industrial equipment properly and reliably with the remote control system.

Abstract: A manual control device with a control stick (joystick) whose output signal is proportional to the angular deflection of the control stick has transducers that step the output signal in such a way that the manual control device imitates or simulates the switching behavior of a N-stage manual control device. For that purpose, analog or digital electronic means associate with the output signal of the manual control device, depending on its value, one among N different voltage values, whose number and potential difference may be predetermined. The advantages of an analog manual control device (few mechanical components, cheap production) are thus combined with the advantages of a N-stage manual control device (adjustment information for the user, wider field of application in industrial control processes).

Abstract: A multi-stage switch with a common actuating element and at least two switch elements for making contact provides that the switch elements are disposed next to each other above contact elements of a circuit board which they bridge in the closed state. The actuating element for the switch is movably disposed above the switch elements in such a way that the switch elements respond sequentially when the actuating element is depressed. Such a multi-stage switch can be produced cost-effectively with simple structural means, can be universally used, is easy to operate, maintenance free to the greatest extent and operates dependably.

Abstract: A manual controller including a control lever having a lower end; a housing having a bottom; a bearing held in the housing and supporting the control lever for pivotable deflection in two orthogonal axes around a fixed point from a zero position to a maximum pivot angle relative to the zero position while the lower end of the control lever moves over a path lying in a spherical surface having a radius R; and converter devices which translate pivotal movement of the control lever from its zero position into an electrical signal. The bearing is an elastomer joint having a transition part extending between a rim and an inner part for imposing on the control lever an elastic restoring force from all deflection positions toward the zero position of the control lever while simultaneously maintaining the spatial position of the fixed point.

Abstract: A switch for operating an electric device, the switch having a released position in which the device can be switched on or off, and a locked position in which switching on of the device is prevented, in combination with a removable key element including a key insertable into the switch and displaceable for placing the switch in a selected one of the released and locked positions. The switch includes a function element fixedly disposed within the electric device, and an actuating element for switching the electric device on and off, seated on the outside of the device and in operative connection with the function element. The key element is composed of a cap-like slip-on element to which the key is permanently fastened and which is configured to be securely and removably mounted on the actuating element.