Abstract: The invention relates to a motor suspension for rigid and watertight mounting of a motor to a housing of an electric device, an electric device comprising such a motor suspension and a hair cutting device comprising an electric device with such a motor suspension. The motor suspension comprises a motor fixation element, a sealing suspension element and a motor axis seal. The motor fixation element is configured to provide a rigid connection of a motor to a housing in one direction, while it provides some flexibility in another direction for not deforming the housing. The sealing suspension element is configured for providing a fluid-tight connection to the housing, and the motor axis seal is configured for providing a fluid tight connection of the sealing suspension element to a rotational axis of the motor.

Abstract: A suspension system (22) configured to minimize transmission of acoustic and vibrational energy in a device, comprising: (i) a rigid support (24); (ii) an operative element (16) positioned within the rigid support and comprising a drive frequency when the device is in operation; and (iii) a resilient element (26) engaging the rigid support and configured to create a resilient force against vibrations generated by the operative element in one or more degrees of freedom; wherein the natural frequency of a suspension mode in one or more of the degrees of freedom are tuned into a narrow resonant frequency range by the suspension, and wherein the resonant frequency is greater than the drive frequency.

Abstract: The invention relates to a motor suspension for rigid and watertight mounting of a motor to a housing of an electric device, an electric device comprising such a motor suspension and a hair cutting device comprising an electric device with such a motor suspension. The motor suspension comprises a motor fixation element, a sealing suspension element and a motor axis seal. The motor fixation element is configured to provide a rigid connection of a motor to a housing in one direction, while it provides some flexibility in another direction for not deforming the housing. The sealing suspension element is configured for providing a fluid-tight connection to the housing, and the motor axis seal is configured for providing a fluid tight connection of the sealing suspension element to a rotational axis of the motor.

Abstract: A wet cleaning device (WCD) comprises a mopping unit (MU) for wet cleaning a surface, and an arrangement (ST) for increasing a pressure of the mopping unit (MU) to the surface by means of suction. The arrangement includes a hose at a side of the mopping unit (MU), the hose having an opening for applying suction to the surface. The hose may be present at opposite sides of the mopping unit (MU). Alternatively, the hose may be present around the mopping unit (MU). Preferably, a suction power of the arrangement is controllable. Advantageously, the suction power is controllable in dependence on a detection of stains, a speed of the wet cleaning device (WCD), and/or a type of the surface. If the wet cleaning device (WCD) is formed by a mopping robot vacuum cleaner, the suction for the arrangement (ST) is advantageously a part of a suction generated for vacuum cleaning.

Abstract: A tap sensitive alarm clock has a housing (20), a vibration sensor (22) mechanically coupled to the housing for receiving a shock due to a user tapping the housing, and a control circuit (24) coupled to the vibration sensor for controlling a function of the alarm clock. An audio unit (26) is coupled to an audio circuit (25) for generating sound, e.g. a loudspeaker in an alarm clock or a wake up light. To avoid interference of the sound and the vibration sensor, the alarm clock is provided with a filter (23) coupled to the vibration sensor and the control circuit. The filter has a filter curve matched to block frequencies occurring in the sound. Advantageously it is avoided that the sound frequencies trigger the function, while the sensor is sensitive to other frequencies up to the frequency range of the sound for reliably detecting the tapping.

Abstract: A nodal-mounted spring arrangement for an electronic toothbrush includes a V-shaped spring member secured at both ends so that it can operate in out-of-phase torsion mode along the axial dimension thereof. In one embodiment, the V-shaped spring member includes two extended end regions, which extend below a longitudinal edge of the middle portion of the V-spring. The free ends of the extended portions are joined by a flat cross-piece. This “closed end” region is present at both ends of the V-spring.

Abstract: A tap sensitive alarm clock has a housing (20), a vibration sensor (22) mechanically coupled to the housing for receiving a shock due to a user tapping the housing, and a control circuit (24) coupled to the vibration sensor for controlling a function of the alarm clock. An audio unit (26) is coupled to an audio circuit (25) for generating sound, e.g. a loudspeaker in an alarm clock or a wake up light. To avoid interference of the sound and the vibration sensor, the alarm clock is provided with a filter (23) coupled to the vibration sensor and the control circuit. The filter has a filter curve matched to block frequencies occurring in the sound. Advantageously it is avoided that the sound frequencies trigger the function, while the sensor is sensitive to other frequencies up to the frequency range of the sound for reliably detecting the tapping.

Abstract: A centrifugal bowl comprises a base that can rotate about an axis of rotation. A filter sieve in the shape of a perforated peripheral side sieve wall extends from an open end to the base, and a plurality of vanes is disposed in a predominantly radial direction on the inner surface of the perforated peripheral side sieve wall.

Abstract: A V-spring member (18) for use in a driving system for a personal care appliance has regions (34, 36) at the ends of the spring which are large enough to support a contact with an end clamping assembly, the spring member including a cross-piece (40) extending between the longitudinal edges of the spring at the end regions, such that the ends of the spring member define a closed line. End clamping assemblies (16, 24) provided for such a V-spring member include a body portion (64) having a lower support portion (66) on which the V-spring is supported and a mating clamping member (88) positioned in registry with the support portion on top of the V-spring.

Abstract: A nodally mounted spring arrangement for a drive train which is used in an electronic toothbrush which includes a housing. A V shaped spring member (15) is secured at both ends thereof, wherein the spring member has a node point (30) along a ridge line, approximately halfway along the length of the spring member. A mounting plate (26) member is fixedly connected to the node point of the spring member and also fixedly connected to the housing of the toothbrush.

Abstract: A tap sensitive alarm clock has a housing (20), a vibration sensor (22) mechanically coupled to the housing for receiving a shock due to a user tapping the housing, and a control circuit (24) coupled to the vibration sensor for controlling a function of the alarm clock. An audio unit (26) is coupled to an audio circuit (25) for generating sound, e.g. a loudspeaker in an alarm clock or a wake up light. To avoid interference of the sound and the vibration sensor, the alarm clock is provided with a filter (23) coupled to the vibration sensor and the control circuit. The filter has a filter curve matched to block frequencies occurring in the sound. Advantageously it is avoided that the sound frequencies trigger the function, while the sensor is sensitive to other frequencies up to the frequency range of the sound for reliably detecting the tapping.

Abstract: A hot beverage making device includes a boiler for heating water; a housing for accommodating the boiler and connecting element for connecting the boiler to the housing. During operation of the boiler, water is heated and water vapor bubbles are created inside the boiler. Formation of the bubbles causes varying moments about the center of mass of the boiler. The connecting element is adapted to prevent transmittal to the housing of at least a portion of the moment variations. This keeps the noise produced as a result of vibrations of the housing at an acceptable level. In particular, the connecting element is adapted to let the boiler have at least one rotational degree of freedom.

Abstract: A centrifugal bowl comprises a base that can rotate about an axis of rotation. A filter sieve in the shape of a perforated peripheral side sieve wall extends from an open end to the base, and a plurality of vanes is disposed in a predominantly radial direction on the inner surface of the perforated peripheral side sieve wall.

Abstract: The self-contained intraoral appliance includes first and second substantially rigid bands (12, 14) configured to fit along the outer and the inner surfaces of a row of teeth in the mouth. A motor (20) driven by a battery is connected to the bands through a connecting assembly (2, 24, 28, 34, 40 and 44) in such a manner as to provide substantially complete coverage of top surfaces of molar teeth. Brush elements (16, 18) are mounted on the surfaces of the bands to provide cleansing of the teeth.

Abstract: A V-spring member (18) for use in a driving system for a personal care appliance has regions (34, 36) at the ends of the spring which are large enough to support a contact with an end clamping assembly, the spring member including a cross-piece (40) extending between the longitudinal edges of the spring at the end regions, such that the ends of the spring member define a closed line. End clamping assemblies (16, 24) provided for such a V-spring member include a body portion (64) having a lower support portion (66) on which the V-spring is supported and a mating clamping member (88) positioned in registry with the support portion on top of the V-spring.

Abstract: A centrifugal bowl (105) comprises a base (3) that can rotate about an axis of rotation. A filter sieve in the shape of a perforated peripheral side sieve wall (151) extends from an open end to the base, and a plurality of vanes (155a . . . 155f) is disposed in a predominantly radial direction on the inner surface of the perforated peripheral side sieve wall (151).

Abstract: The self-contained intraoral appliance includes first and second substantially rigid bands (12, 14) configured to fit along the outer and the inner surfaces of a row of teeth in the mouth. A motor (20) driven by a battery is connected to the bands through a connecting assembly (2, 24, 28, 34, 40 and 44) in such a manner that one end of the first band moves through a displacement to brush the teeth while the other end remains substantially stationary, and such that an opposing end of the second band moves through a displacement while the other end remains substantially stationary. Brush elements (16, 18) are mounted on the surfaces of the bands to provide cleansing of the teeth.

Abstract: The present invention is directed to a reciprocating motor pump (1) suitable to generate compressed gas with a reduced noise level of at most 55 dB, wherein said pump (1) includes a pump casing comprising:—a gas inlet nozzle (3);—a gas chamber;—a cylinder chamber (4) comprising a piston (5);—an inlet valve (7);—an outlet valve (8); and—a gas outlet port (9); wherein gas enters the gas chamber (2) through a gas inlet nozzle—(3) of said gas chamber (2) and then flows from said gas chamber (2) to said cylinder chamber (2) to said cylinder chamber (4) through an inlet valve (7) of said cylinder chamber (4), whereby the ratio of the diameter of the opening of the gas passage of said inlet nozzle (3) to the diameter of the opening of the gas passage of said inlet valve (7) is 1:15 to 1:5.

Abstract: A tap sensitive alarm clock has a housing (20), a vibration sensor (22) mechanically coupled to the housing for receiving a shock due to a user tapping the housing, and a control circuit (24) coupled to the vibration sensor for controlling a function of the alarm clock. An audio unit (26) is coupled to an audio circuit (25) for generating sound, e.g. a loudspeaker in an alarm clock or a wake up light. To avoid interference of the sound and the vibration sensor, the alarm clock is provided with a filter (23) coupled to the vibration sensor and the control circuit. The filter has a filter curve matched to block frequencies occurring in the sound. Advantageously it is avoided that the sound frequencies trigger the function, while the sensor is sensitive to other frequencies up to the frequency range of the sound for reliably detecting the tapping.

Abstract: A nodal-mounted spring arrangement for an electronic toothbrush includes a V-shaped spring member secured at both ends so that it can operate in out-of-phase torsion mode along the axial dimension thereof. A mounting plate is connected between a node point along the V-shaped spring member and the housing of the toothbrush. In one embodiment, the V-shaped spring member includes opposing slots on opposite sides of the node point, the slots extending in an axial direction, creating an integrated torsion bar node spring, while reducing stress in the vicinity of the nodal point.