Abstract: The invention relates to a lubricant dispenser comprising a storage container (1) filled with lubricant and a pump (2) which is connected to or can be connected to the storage container (1) and by means of which the lubricant can be pumped out of the storage container (1). The pump has a pump housing (3) with an inlet opening (4) and an outlet opening (5), a piston (6) which is movably guided in the pump housing (3) in a linear manner, and a drive (7) which acts on the piston (6). The pump housing (3) of the pump (2) is connected to or can be connected to the storage container (1), and the piston (6) can be raised or lowered cyclically by the drive (7) in order to pump a lubricant from the inlet opening (4) to the outlet opening (5).

Abstract: These objects are attained in a mount for a lubricant dispenser and that has a protective casing forming a cavity adapted to hold the dispenser and having a lower edge and a bracket having a lower generally horizontal leg on which the lower edge of the casing sits. An outlet fitting is provided on the lower leg positioned to received lubricant from the dispenser in the cavity of the casing sitting on the lower leg.

Abstract: The invention relates to a method of dosing lubricating grease with a lubricant dispenser (1), comprising a lubricant cartridge (3) filled with lubricating grease (2) and holding a plunger (4) for expelling the lubricating grease (2), a spindle (6) driven by a direct-current drive motor (5) for moving the plunger (4), a power supply (7), a controller (8) for operating the motor (5) with a microcontroller (9), and a device (10) for interrupting the motor current flowing through the motor (5). The motor (5) is started up by the controller (8) in adjustable time intervals and a dose of dispensed agent is expressed from the cartridge (3) through a plunger motion with a predetermined plunger stroke. The motor current and the motor voltage are measured during motor operation, and the motor runtime, and the plunger stroke is calculated with the current and voltage measured values and at least one motor characteristic.

Abstract: The invention relates to a lubricant dispenser having a lubricant cartridge (1), which has a lubricant storage space (2) having an outlet opening (3) for lubricant (4), a carrier (5) which is connected to the lubricant cartridge (1) in a detachable manner and accommodates a battery-operated motor (6) for driving a spindle (7), and a plunger (8) connected to the spindle (7) for ejecting the lubricant (4), wherein an output shaft (9) of the motor (6) is connected to the spindle (7) by means of an adapter (10) and wherein the adapter (10) is mounted in a rotationally movable manner in an accommodation space (11) of the carrier (5) that is open towards the lubricant cartridge (1). A rolling bearing (12), which is arranged between the carrier (5) and the adapter (10), is provided as the bearing of the adapter (10). The adapter (10) is secured axially against falling out of the accommodation space by means of a retaining means (13) that is fastened to the carrier (5) and preferably designed as a lid.

Abstract: The invention relates to a method for dispensing a lubricant (3) in a metered manner by means of a lubricant dispenser, which comprises a lubricant cartridge (2) filled with lubricant (3), at least one electrochemical gas-generating cell (4), and on control electronics (1) for controlling the gas-generating cell (4). The control electronics (1) comprise a microcontroller (8) and a switch (9) for interrupting the current flowing through the gas-generating cell (4). At adjustable time intervals, the circuit through the gas-generating cell (4) is closed by the control electronics (1) and lubricant (3) is displaced from the cartridge (2) by the released gas. During the gas generation, the electric current flowing through the gas-generating cell (4) is measured and the charge that has flowed through the gas-generating cell (4) is added up. The circuit is interrupted when the added-up charge has exceeded a specified cumulative amount of charge.

Abstract: The invention relates to a collecting container for lubricants having a housing (1) which has an inlet opening (2) for introducing lubricant (3) and is open on the opposite side, and having a flexible membrane (4) which is fastened to the housing (1) and which delimits a lubricant collecting chamber (5) adjoining the inlet opening (2) in the housing (1). According to the invention the membrane (4) has, starting from the point where it is fastened to the housing (1), firstly a bellows section (6) and a reinforced section (7) connected at the end thereof.

Abstract: A container for collecting a liquid lubricant has a housing having one end formed with an inlet opening connectable to a source of the liquid lubricant and an opposite end formed with a vent hole, with a piston inside the housing subdividing the housing into a front lubricant compartment into which the inlet opening opens and a rear compartment into which the vent hole opens. The piston is shiftable between a front position close to the intake opening and a rear position close to the vent hole such that as the liquid lubricant fills the lubricant compartment the piston moves into the rear position. Formations on the piston and on the housing seal between the piston and the housing around the vent hole only when the piston is in the rear position.

Abstract: The invention relates to a method for metered dispensing of lubricants using a lubricant dispenser comprising a reservoir chamber filled with lubricant, a gas generating unit for electrochemically generating gas, a piston acted on by the generated gas for outputting the lubricant from the reservoir chamber, and an electronic control unit for controlling the electrochemical gas generation. According to the invention, the temperature of the lubricant or the environment is measured at time intervals, and an average temperature value is derived from a plurality of measured temperature values. Using stored correction values describing the temperature-dependence of the electrochemical gas generating rate, a control parameter determining the electrochemical gas generation is set for the average temperature value, having the requirement that the gas generating rate at the average temperature value corresponds to the target value that correlates to prescribed dispensing time.

Abstract: A lubricant dispenser having a cartridge, a wall in the cartridge defining therein a lower chamber and an upper chamber, and a piston subdividing the lower chamber into a lower lubricant compartment and an upper gas compartment. The cartridge has an outlet opening into the lower lubricant compartment. A body of fluent lubricant fills the lower lubricant compartment. A housing in the upper chamber holds a gas generator connected through the wall to the gas compartment and electrically energizeable to generate gas and pressurize the gas compartment. A battery is secured to the housing. An electronic controller removably mounted in the upper chamber has electrical contacts connectable to the battery and to the gas generator. It is powerable by the battery for operating the gas generator and thereby pressurizing the gas compartment, moving the piston, and forcing the lubricant out of the outlet.

Abstract: A lubricant dispenser includes a lubricant container that has an outlet opening for lubricant, a piston disposed in the lubricant container, and a cap connected with the lubricant container, having a device for generating a gas that impacts the piston. The device for gas generation has a gas cell with an electrolyte fluid and electrodes for electrochemical gas generation, a power source, as well as an electrical connection between the power source and the electrodes with a switch. The cap is a plastic injection-molded part produced in one piece, formed from several parts, using the multi-component injection-molding method, which part is made of an outer ring made of insulation material and an insert that forms the gas cell, having two electrically conductive wall regions as electrodes, as well as having an intermediate piece that separates the conductive regions. The insert contains a sponge saturated with electrolyte fluid, and is closed off with a plastic lid.

Abstract: A cell for gas generation is provided, particularly for the operation of a lubricant dispenser. The cell has two electrodes to be connected to a circuit containing a power source, and an aqueous electrolyte fluid located between the two electrodes, containing an azide having the formula XN3, for electrochemical generation of a gas containing nitrogen (N2). The electrolyte fluid contains a magnesium salt as an additive, for chemical binding of hydroxide ions that are formed during the electrochemical reaction.

Abstract: The invention relates to a metering device for lubricant having a lubricant reservoir (1), a piston (3), which is arranged on a threaded spindle (2), within the lubricant reservoir and a drive head 4, which has a drive shaft (7) connected to the threaded spindle (2) and an electromechanical drive (5) for actuating the drive shaft. The drive shaft (7) contains a lubricant passage duct (8) which opens into the lubricant storage space of the lubricant reservoir. A ram (9) is inserted into the lubricant passage duct (8) of the drive shaft, said ram having an axial bore (10) with a nonreturn valve (11) on the inlet side, and also a ram head (13) which is arranged in a rotationally fixed manner and is loaded by a compression spring (12). The ram head (13) bears under the effect of the compression spring (12) against a control surface (14) of the drive shaft (7).

Abstract: A device for supplying several lubrication points on machine parts with a lubricant, comprising an electromechanical lubrication dispenser and a distribution device coupled to a lubricant outlet of the dispenser. The distribution device has a housing, a cylindrical hollow distributor body or tube which is mounted to rotate about a vertical axis. There is also a fixed cylindrical sleeve that surrounds the distributor body, forming a seal. The distributor body has an opening at the top for allowing the lubricant in, and has at least two distributor bores disposed on the circumference but offset axially from one another. Each of these distributor bores has a corresponding opening bore in the distributor sleeve that is assigned to it. This distribution device also has an electric motor drive that has a running path control that has a switch that functions electromechanically or in a contact free manner.

Abstract: The invention relates to a lubricating device for applying lubricant to the wheel flange of a running wheel, or to the side surface of a running rail. The lubricating device has a lubricating head that is guided with axial displaceability and is acted upon by a pressure spring. This lubricating head rests against the surface to be lubricated under the action of the pressure spring. This lubricating head has a dispensing opening for dispensing lubricant, which is fluidly connected with a lubricant hose or a lubricant dispenser.

Abstract: A lubricant dispenser comprising a housing, a lubricant supply container, a plunger, a telescopic hollow spindle, and an electromechanical servo-drive for changing the length of the telescopic hollow spindle. One end of the telescopic hollow spindle is fixed on the housing. With its other end, the telescopic hollow spindle cooperates with a plunger containing a passage opening for lubricant. The telescopic hollow spindle has a lubricant passage channel in which at least one check valve is arranged on the inlet side. The telescopic hollow spindle alternately carries out setting strokes of different lengths that increase or reduce the length of the spindle. The setting strokes are coordinated with each other so that with a setting stroke of the telescopic hollow spindle increasing the length of the spindle, a preset amount of lubricant displaced by the movement of the plunger enters the lubricant passage channel through the opening check valve.

Abstract: A device for lubricating a rolling bearing. The inventive device comprises a lubricant dispenser (1) connected to the lubricating point of the rolling bearing (7) and a measuring unit (8) allocated to the rolling bearing (7) for detecting the condition of the bearing. The lubricant dispenser (1) comprises a lubricant container with a supply of lubricant (2), a discharge device with an electromotor drive (3) and a control device (4) lined with the measuring device (8). The control device (4) of the lubricant dispenser (1) emits control signals to the electromotor drive (3) at certain intervals prompting it to discharge small amounts of lubricant and changes the discharge times and/or the duration of the discharge intervals if the measuring signal emitted by the measuring unit (8) exceeds a defined value. In this case, a signal for displaying an incipient bearing defect is also emitted.

Abstract: An automatic lubricant dispenser has a lower housing part formed with an outlet, a piston displaceable along an axis in the lower part and forming therein a compartment, a spindle extending along the axis, threaded into the piston, having an upper end above the piston provided with a lower coupling half, and a body of fluent lubricant filling the compartment. An upper housing part removably securable to the lower part holds an electrical motor unit having an output shaft projecting downward at the axis and provided with an upper coupling half axially engageable with the lower coupling half. The coupling halves are axially engageable to rotationally couple the motor output shaft to the spindle so that electrical energization of the motor when the coupling halves are engaged displaces the piston and expresses lubricant from the outlet. A sensor connected to the shaft generates an output after a predetermined angular displacement of the shaft.

Abstract: A lubricating system has a housing formed with an intake passage, a drive shaft extending longitudinally in the housing and carrying a plurality of longitudinally spaced worm gears, and respective pumps juxtaposed with the worm gears in the housing. Each pump has a cylinder fixed in the housing, centered on a respective transverse axis, and forming an intake port connected to the passage and an output port. A cavity-forming piston is rotatable about and reciprocal along the respective transverse axis and a worm wheel on the piston meshes with the respective worm gear. An axially projecting cam ramp on the worm wheel is axially engageable with an abutment on the housing. This abutment can be moved axially and for fixing it in any of a multiplicity of positions for varying axial deflection of the piston. A spring bearing against the piston urges the ramp toward the abutment.

Abstract: A plurality of lubricant dispensers with respective microprocessor controllers are connected to a central microcomputer and can count up the number of revolutions of the respective spindle so that local lubrication at different sites of a machine will satisfy the site requirement even if the machine operation and lubrication have been interrupted. The controller of the dispenser includes a data store responsive to the dispensing time which is reset when a new reservoir is hooked up.

Abstract: An automatic lubricant dispenser has a lower housing part formed with an outlet, a piston displaceable along an axis in the lower part and forming therein a compartment, a spindle extending along the axis, threaded into the piston, having an upper end above the piston provided with a lower coupling half, and a body of fluent lubricant filling the compartment and forming with the spindle, piston, and lower housing part a lower subassembly. An upper housing part securable to the lower part via a screwthread forms an upper subassembly. An insert mainly in the upper housing part forms a battery compartment and carries a motor unit having an output shaft projecting downward therefrom at the axis and provided with an upper coupling half axially engageable with the lower coupling half. The coupling halves are axially engageable to rotationally couple the motor output shaft to the spindle.