Abstract: The present invention is related to a dispenser, which is filled with a gel comprising a C1 to C10 carboxylic acid and a thickener, comprising a polyester membrane. The invention further relates to said gel. It also relates to s method for preparing said dispenser, comprising a) mixing C1 to C10 carboxylic acid and the thickener, and b) filling the mixture of step a) into the dispenser. The invention further relates to a method for the control of mites in bee hives comprising putting said dispenser inside or near a bee hive. It also relates to a use of the dispenser or the gel for the control of mites or of nosema in agricultural, industrial or domestic environment.

Abstract: A circuit configuration for evaluating and/or for activating sound transducers for application in vehicles, particularly as a part of a parking assistance, the circuit configuration including a transformer having a primary winding and a secondary winding, and the windings lead to a transformation ratio of greater than 1, terminals being provided for a sound transducer at the secondary winding and terminals being provided at the primary winding for activating device(s) which generate a voltage that changes with time at the primary winding of the transformer; on the side of primary winding (primary side) an antenna being provided which is suitable for receiving electrical fields generated by interference signals, and which is connected to the side of secondary winding (secondary side) via a coupling path; a device for phase shifting being provided in the coupling path, which brings about a phase shift by 180° in the electrical interference signals received by the antenna.

Abstract: The present invention is related to a dispenser, which is filled with a gel comprising a C1 to C10 carboxylic acid and a thickener, comprising a polyester membrane. The invention further relates to said gel. It also relates to s method for preparing said dispenser, comprising a) mixing C1 to C10 carboxylic acid and the thickener, and b) filling the mixture of step a) into the dispenser. The invention further relates to a method for the control of mites in bee hives comprising putting said dispenser inside or near a bee hive. It also relates to a use of the dispenser or the gel for the control of mites or of nosema in agricultural, industrial or domestic environment.

Abstract: A circuit configuration for evaluating and/or for activating sound transducers for application in vehicles, particularly as a part of a parking assistance, the circuit configuration including a transformer having a primary winding and a secondary winding, and the windings lead to a transformation ratio of greater than 1, terminals being provided for a sound transducer at the secondary winding and terminals being provided at the primary winding for activating device(s) which generate a voltage that changes with time at the primary winding of the transformer; on the side of primary winding (primary side) an antenna being provided which is suitable for receiving electrical fields generated by interference signals, and which is connected to the side of secondary winding (secondary side) via a coupling path; a device for phase shifting being provided in the coupling path, which brings about a phase shift by 180° in the electrical interference signals received by the antenna.

Abstract: The invention relates to a hydrodynamic bearing system for the rotary bearing of a spindle motor particularly to drive the platter(s) in a hard disk drive having a stationary shaft, a bearing sleeve journaled to be rotatable about the axis of the shaft and a cover plate fixedly attached to the bearing sleeve to cover the bearing sleeve in the region of the free end of the shaft, the surfaces of the shaft, the bearing sleeve and the cover plate facing each other and spaced apart from each other by a bearing gap forming at least one radial bearing region and at least one axial bearing region. The invention is characterized in that the cover plate has a cylinder-shaped shoulder concentric to the axis and having a thread to receive a fastening screw which is rotatably accommodated in a recess in the end face of the shaft in such a way that the bearing gap continues between the inner surface of the recess and the outer surface of the shoulder.

Abstract: Bonding (1) of a plastic fixture (2) to a glass container (3), comprising a glass container (3) with an opening area (8) bearing an opening (6) and a plastic fixture (2) with two walls (11, 12) enclosing both sides of the wall (20) of the glass container (3) in the opening area in circumferential direction, a first inner wall (11) and a second outer wall (12). The opening area (8) has an area of lesser external dimensions on the outer circumference than on the opening (6). A wraparound element (19) interrupted in circumferential direction which encloses the opening area (8) in the vicinity of lesser cross-section and supports itself on the wall (20) of the glass container (3). The plastic fixture (2) is positively connected with the wraparound element (19).

Abstract: The invention relates to a hydrodynamic bearing system for the rotary bearing of a spindle motor particularly to drive the platter(s) in a hard disk drive having a stationary shaft, a bearing sleeve journaled to be rotatable about the axis of the shaft and a cover plate fixedly attached to the bearing sleeve to cover the bearing sleeve in the region of the free end of the shaft, the surfaces of the shaft, the bearing sleeve and the cover plate facing each other and spaced apart from each other by a bearing gap forming at least one radial bearing region and at least one axial bearing region. The invention is characterized in that the cover plate has a cylinder-shaped shoulder concentric to the axis and having a thread to receive a fastening screw which is rotatably accommodated in a recess in the end face of the shaft in such a way that the bearing gap continues between the inner surface of the recess and the outer surface of the shoulder.

Abstract: A fluid dynamic bearing assembly including a shaft and a bearing sleeve. A bearing gap is formed between the shaft and the bearing sleeve and is filled with a lubricating fluid. A reservoir containing the excess of the lubricating fluid is formed at one end of the bearing sleeve. The reservoir is not located in close proximity to the shaft. A fluid trapping recess is formed in the shaft, the fluid trap being configured to prevent migration of the lubricating fluid along the shaft into the environment.

Abstract: A fluid dynamic bearing assembly including a shaft and a bearing sleeve. A bearing gap is formed between the shaft and the bearing sleeve and is filled with a lubricating fluid. A reservoir containing the excess of the lubricating fluid is formed at one end of the bearing sleeve. The reservoir is not located in close proximity to the shaft. A fluid trapping recess is formed in the shaft, the fluid trap being configured to prevent migration of the lubricating fluid along the shaft into the environment.

Abstract: A hydrodynamic bearing system, in particular for a spindle motor, preferably for driving magnetic disks in disk drives, having at least one journal bearing formed by a shaft rotatably borne in a bearing sleeve. The hydrodynamic bearing system further includes at least one thrust bearing formed by a thrust plate, rotatably received in a recess of the sleeve and securely joined to the shaft, and a counter-bearing associated with the thrust plate that is in the form of a cover plate. The cover plate rests on and is attached to one end face of the sleeve. This reduces assembly-induced flexure in the cover plate.

Abstract: A hydrodynamic bearing system for a spindle motor, preferably for driving magnetic disks in disk drives, having at least one journal bearing, that encompasses a rotatably borne shaft in a bore of a sleeve, and at least one thrust bearing, that encompasses a thrust plate rotatably received in a recess of the sleeve and securely joined to the shaft and a counter-bearing associated with the thrust plate that is in the form of a cover plate. The thrust plate and the cover plate are arranged in a common recess of the sleeve, wherein the cover plate is fixed in the recess in a defined position so that a bearing gap with a desired gap width remains on both sides of the thrust plate.

Abstract: The invention relates to bonding (1) of a plastic fixture (2) to a glass container (3), comprising

Abstract: Closure members are provided at the opposite ends of a hollow casing. Shock absorbers are confined within the casing by the closure members. A weight is disposed within the casing between the shock absorbers. The weight may be defined by a plurality of granules confined within an enclosure in the casing between the shock absorbers. Alternatively, the weight may be defined by a solid member. The casing may be in the shape of a baseball bat. Alternatively, a tube may be disposed within the casing and may be closed by the end caps. The shock absorbers and the weight may be confined within the tube by the end caps. The arrangement described above may also be provided in different types of balls. For example, end caps may be provided at the opposite ends of a hollow main body shaped to define the central portion of a football. Shock absorbers may be disposed with the hollow main body at positions interior to the end caps. A weight may be disposed within the hollow main body between the shock absorbers.

Abstract: Closure members are provided at the opposite ends of a hollow casing. Shock absorbers are confined within the casing by the closure members. A weight is disposed within the casing between the shock absorbers. The weight may be defined by a plurality of granules confined within an enclosure in the casing between the shock absorbers. Alternatively, the weight may be defined by a solid member. The casing may be in the shape of a baseball bat. Alternatively, a tube may be disposed within the casing and may be closed by the end caps. The shock absorbers and the weight may be confined within the tube by the end caps. The arrangement described above may also be provided in different types of balls. For example, end caps may be provided at the opposite ends of a hollow main body shaped to define the central portion of a football. Shock absorbers may be disposed with the hollow main body at positions interior to the end caps. A weight may be disposed within the hollow main body between the shock absorbers.

Abstract: A long-wall mining machine has an operating chain entraining conveyor flights or mining tools and displaceable in a trough which can be provided with rows of sensors of an inductive proximity type responding to the chain and the tools and generating measurement pulse trains which are compared with setpoint pulse trains to signal functional parameters of chain operation. The sag of the chain is determined by a row of sensors and in response to the sag a chain-tension unit can be controlled.

Abstract: A sports implement, such as a tennis racket, baseball bat or golf club, includes an audio feedback device to provide an audible indication of the speed of movement of the sports implement. The audio feedback device includes ridges and grooves formed along the length of one of the structural members of the sports implement, such as along the shaft of the golf club, along the length of the baseball bat, along the handle of the tennis racket, or along the lateral sections of the head of the tennis racket. The ridges and grooves are configured to provide an audible indication when the sports implement is being swung at a proper speed. The audio feedback device can be a separate tubular member which is mounted to a generally conventional sports implement or it can be created by appropriately configuring the surface of the sports implement.

Abstract: A ball support device is used for supporting a ball at an elevated position so that the ball can be struck while so supported with a bat, club or like sports implement. The ball support device includes a base, a post and a ball holder fitted to the upper end of the post. The post is formed from two telescopically interconnected members, and a friction grip means is provided for fixing the two members relative to each other at a selected height. The holder may itself be flexible and the connection between the base and the post is preferably resiliently flexible so that an articulated connection between post and base is achieved, and the post is biased to its operatively vertical orientation. The components are preferably all easily disengagable from each other so that the device can be erected and disassembled without difficulty.

Abstract: This invention provides a rebound net, for use in practising tennis, cricket, baseball and/or other games, having a surrounding frame and a net capable of being mounted in the frame, the net being made of a tough, low-extensible material such as nylon with the threads of the net fastened together at their intersections, and a number of attachment clips for fastening said net to the frame, when the attachment clips are arranged around the frame, in such manner as to hold the net under tension sufficient to provide at least 80% rebound in a tennis ball when dropped upon a mid-portion of the net in horizontal position. The net is arranged so that the threads thereof, when the net is held in the frame under tension, extend from the bottom of the frame upwardly on opposite sides of a vertical center line at equal angularity to that center line. That is to say, for a net with a square mesh the diagonals of the mesh extend horizontally and vertically when the frame is in an upright operative position.