摘要:
A touch-sensitive switch is disclosed whose electrical circuit is provided on a printed board (28). The touch-sensitive switch is coupled to a touch-sensitive switching area (12) on a panel or cover (11) of an electrical appliance via a sensor element (44). The sensor element (44) consists of a flexible, electrically conducting plastic or foam material. Two parts (24, 25) of the sensor element (44) are received in a receiving element or receiving cage (18) which is produced from an electrically insulating, transparent plastic. Said receiving element or cage electrically insulates the two sensor element parts (24, 25) from each other by means of a dividing wall (21) and encases them from the exterior, thereby providing a sufficiently long air and leakage path between current-carrying elements and an opening (16) in the panel. A lighting element projects through said path and guides the light emitted by an LED (29) to a light outlet in the switching area (12) in the manner of a light guide. Alternatively, an interior casing (23) can be provided downstream of the opening (16) and sealingly surrounds the lighting element (15), across the air and leakage path, and at the same time retains the sensor element (44).
摘要:
A touch sensor device for a household appliance or the like is disclosed, for producing a signal for controlling the appliance's operation when touched by a user's finger. The sensor comprises a capacitance sensor element connected to control circuitry, wherein the sensor is connected to a first side of a circuit board, typically facing towards the inside of the appliance. In the same vicinity on the other side of the circuit board is a conductive field that is not galvanically connected to the sensor element, but which is positioned against a non-conductive panel, the other side of which forms the exterior of the appliance. The exterior surface of the panel is a touch area, so that contact by a user's finger in the touch area alters the capacitance, which is detected by the capacitance sensor element and is detected by the control circuitry for controlling the appliance.
摘要:
A method and solution are provided for reducing air-polluting odors emanating from organic waste products produced by metabolic processes and from organic industrial wastes, including effluents, sewage sludges, and the like, the method comprising contacting said wastes with an aqueous acid solution containing a water-soluble oxidizing agent selected from the group consisting of nitrates, chlorates and permanganates of ammonia and alkali metals, and also a precipitating agent selected from the group consisting of water-soluble ferric and ferrous compounds.
摘要:
A touch sensor device for a household appliance or the like is disclosed, for producing a signal for controlling the appliance's operation when touched by a user's finger. The sensor comprises a capacitance sensor element connected to control circuitry, wherein the sensor is connected to a first side of a circuit board, typically facing towards the inside of the appliance. In the same vicinity on the other side of the circuit board is a conductive field that is not galvanically connected to the sensor element, but which is positioned against a non-conductive panel, the other side of which forms the exterior of the appliance. The exterior surface of the panel is a touch area, so that contact by a user's finger in the touch area alters the capacitance, which is detected by the capacitance sensor element and is detected by the control circuitry for controlling the appliance.
摘要:
A guide roller with a sealing element (14) formed in one piece in a T-shape having a first axial sealing portion (15) that is placed securely onto a shoulder of the inner race, a second sealing portion (16) that extends radially outwardly and is located inside a second groove of the outer race (13), and a third sealing portion (17) that extends radially inwardly branching off from the first sealing portion (15) at its inner end is provided so that axial contact between the shoulder and the outer race (10) is prevented by the third sealing portion (17).
摘要:
A position measuring device including a scale carrier member and a scanning device for scanning the scale. A temperature difference is generated between the scale carrier member and/or the scanning device, on the one hand, and a housing surrounding the scale carrier member and the scanning device, on the other hand. The temperature difference ensures that condensate is always precipitated on the colder housing.
摘要:
The present invention is an improved computer mouse for inputting cursor commands into a computer of the type having a flat base with a tracking means for use on a flat work surface and switches operable with the fingers of the user. The improved computer mouse comprises a housing having a flat base, a vertical rear wall at a right angle to said flat base, a top and front surface disposed between the front edge of the base and the upper edge of the rear wall. The base having a front to rear dimension less than the height of the rear wall, so that the mouse is readily tiltable rearwardly. Also provided is a means for disabling the mouse when so tilted. The top and front surface being so disposed and elevated such that the user's hand is positioned above the work surface: (i) so that his/her fingers drape over the mouse touching the work surface or slightly thereabove, and (ii) so that the user's wrist is straight or substantially straight whereby repetitive or prolonged use of the mouse will lessen the likelihood of developing carpal tunnel syndrome, tendonitis or a related condition.
摘要:
The invention relates to a regulating valve having a valve housing (1) and an essentially horizontally arranged linearly movable valve member (2) for regulating a flow through the valve. The valve member is by a cylindrical portion (22) arranged in a bearing (6) contained in the valve housing. To reduce the wear to which the bearing paths of the valve member and the bearing are subjected and, resulting therefrom, the deterioration of the guiding of the valve member, the outer bearing path of the bearing is arranged with a “bed” in the base of the bearing path. The “bed” comprises a depression (29) which is formed as a part, limited by generatrices, of a cylindrical surface having a cross-sectional radius (30) which corresponds to that of the cylindrical portion or just above and is smaller than half of a vertical diametrical dimension of this outer bearing path, and a centre angle (31) of preferably about 70°. The invention also relates to a process for manufacturing the outer bearing path.
摘要:
A coating system comprised of a resin component, a hardening component and additives. The resin component contains (meth)acrylic double bonds and at least two reactive hydroxyl groups, and the hardening component is comprised of a multifunctional, at least bifunctional isocyanate. The proportions of resin and hardening component in the coating system are stoichiometric. The coating system is suitable for producing laminated sheets with a surface layer of progressively hardening polyurethane acrylate. During a first hardening stage, the free hydroxyl groups of the resin component cross-link with the isocyanate groups of the hardening component, forming a urethane acrylate prepolymer which contains (meth)acrylic double bonds. In the second hardening state, the (meth)acrylic double bonds continue to cross-link, forming the urethane acrylic polymer coating of the sheet surface. The progressive cross-linking reaction may be controlled by altering the reaction parameters, such as pressure, temperature, choice of additives and chemical constitution of the hardening component.