Abstract: A head for an oral care implement comprises a mounting surface and at least one tuft extending from the mounting surface. The tuft comprises a first group of filaments and at least a second group of filaments. The first group of filaments is surrounded by the second group of filaments. The filaments of the first group have a longitudinal axis and a cross-sectional area extending in a plane perpendicular to the longitudinal axis, and the cross sectional area has a substantially circular shape with a first diameter. The filaments of the second group have a longitudinal axis and a cross-sectional area extending in a plane perpendicular to the longitudinal axis, and the cross sectional area has a substantially circular shape with a second diameter. The first diameter is smaller than the second diameter. The first diameter is about 0.15 mm to about 0.16 mm, preferably about 0.152 mm (6 mil) and the second diameter is about 0.17 mm to about 0.18 mm, preferably about 0.178 mm (7 mil).

Abstract: A head for an oral-care implement comprises at least two tufts extending from a mounting surface of the head. The tufts are inclined with respect to the mounting surface in at least two different directions. Each of the tufts comprises a first group of filaments having a first length and at least a second group of filaments having a second length wherein the first length is different from the second length.

Abstract: A head for an oral care implement comprises a mounting surface and at least one tuft extending from the mounting surface. The tuft comprises a first group of filaments and at least a second group of filaments. The first group of filaments is surrounded by the second group of filaments. The filaments of the first group have a longitudinal axis and a cross-sectional area extending in a plane perpendicular to the longitudinal axis, and the cross sectional area has a substantially circular shape with a first diameter. The filaments of the second group have a longitudinal axis and a cross-sectional area extending in a plane perpendicular to the longitudinal axis, and the cross sectional area has a substantially circular shape with a second diameter. The first diameter is smaller than the second diameter. The first diameter is about 0.15 mm to about 0.16 mm, preferably about 0.152 mm (6 mil) and the second diameter is about 0.17 mm to about 0.18 mm, preferably about 0.178 mm (7 mil).

Abstract: A head for an oral care implement comprises a mounting surface and at least one tuft extending from the mounting surface. The tuft comprises a first group of filaments and at least a second group of filaments. The first group of filaments is surrounded by the second group of filaments. The filaments of the first group have a longitudinal axis and a cross-sectional area extending in a plane perpendicular to the longitudinal axis, and the cross sectional area has a substantially circular shape with a first diameter. The filaments of the second group have a longitudinal axis and a cross-sectional area extending in a plane perpendicular to the longitudinal axis, and the cross sectional area has a substantially circular shape with a second diameter. The first diameter is smaller than the second diameter. The first diameter is about 0.15 mm to about 0.16 mm, preferably about 0.152 mm (6 mil) and the second diameter is about 0.17 mm to about 0.18 mm, preferably about 0.178 mm (7 mil).

Abstract: A head for an oral care implement comprises a mounting surface and at least one tuft extending from the mounting surface. The tuft comprises a first group of filaments and at least a second group of filaments. The first group of filaments is surrounded by the second group of filaments. The filaments of the first group have a longitudinal axis and a cross-sectional area extending in a plane perpendicular to the longitudinal axis, and the cross sectional area has a substantially circular shape with a first diameter. The filaments of the second group have a longitudinal axis and a cross-sectional area extending in a plane perpendicular to the longitudinal axis, and the cross sectional area has a substantially circular shape with a second diameter. The first diameter is smaller than the second diameter. The first diameter is about 0.15 mm to about 0.16 mm, preferably about 0.152 mm (6 mil) and the second diameter is about 0.17 mm to about 0.18 mm, preferably about 0.178 mm (7 mil).

Abstract: The invention relates to a toothbrush having a head area comprising cleaning elements, a grip area, and a neck area, which connects the head and the grip areas to each other, wherein the toothbrush is configured having a first component made of plastic, and at least one further second component made of plastic, wherein the first component has a relief structure that is covered by the second component. The relief structure comprises high regions having the shortest distance to the outer surface of the second component, and low regions having the greatest distance to the outer surface of the second component, and the relief structure has intermediate regions adjacent to the high and low regions, the distance to the outer surface of the second component of the intermediate regions being between that of the high and low regions.

Abstract: A head for an oral-care implement comprises at least two tufts extending from a mounting surface of the head. The tufts are inclined with respect to the mounting surface in at least two different directions. Each of the tufts comprises a first group of filaments having a first length and at least a second group of filaments having a second length wherein the first length is different from the second length.

Abstract: A head for an oral-care implement has at least one tuft extending from a mounting surface of the head. The tuft comprises a first group of filaments having a first length and at least a second group of filaments having a second length wherein the first length is different from the second length. The tuft is inclined with respect to the mounting surface at an angle of from about 65° to about 80°.

Abstract: The invention relates to a toothbrush having a head area comprising cleaning elements, a grip area, and a neck area, which connects the head and the grip areas to each other, wherein the toothbrush is configured having a first component made of plastic, and at least one further second component made of plastic, wherein the first component has a relief structure that is covered by the second component. The relief structure comprises high regions having the shortest distance to the outer surface of the second component, and low regions having the greatest distance to the outer surface of the second component, and the relief structure has intermediate regions adjacent to the high and low regions, the distance to the outer surface of the second component of the intermediate regions being between that of the high and low regions.

Abstract: A battery-operated toothbrush includes a drive unit, a housing defining an accommodation chamber configured to receive the drive unit, and a thermoplastic elastomer seal disposed on an outer surface of the housing. The housing includes a front end configured to receive a toothbrush head, an open end, opposite the front end, that provides access to the accommodation chamber, and a pass-through aperture, which extends from an outer surface of the housing to the accommodation chamber. The drive unit includes an engagement element configured to engage the pass-through aperture to retain the drive unit in the accommodation chamber. The thermoplastic elastomer seal extends into the pass-through aperture. A potion of the thermoplastic elastomer seal is elastically displaced by the engagement element when the engagement element engages the aperture.

Abstract: A battery-operated toothbrush includes a drive unit, a housing defining an accommodation chamber configured to receive the drive unit, and a thermoplastic elastomer seal disposed on an outer surface of the housing. The housing includes a front end configured to receive a toothbrush head, an open end, opposite the front end, that provides access to the accommodation chamber, and a pass-through aperture, which extends from an outer surface of the housing to the accommodation chamber. The drive unit includes an engagement element configured to engage the pass-through aperture to retain the drive unit in the accommodation chamber. The thermoplastic elastomer seal extends into the pass-through aperture. A potion of the thermoplastic elastomer seal is elastically displaced by the engagement element when the engagement element engages the aperture.

Abstract: A luminaire body for a surgical operation light with an annular reflector has at least two electric light bulbs, a first bulb of which with its socket is associated in normal operation with a given centered position (with respect to the reflector) in the stationary part of the luminaire body, while a second bulb with its socket is situated in a reserve position away from the centered position; in case of a failure of the first bulb the positions of the sockets of both bulbs are changed by an electromagnetically operated turning service such that the second bulb can be turned to the original centered position of the first bulb for reserve-bulb operation after the first bulb has been withdrawn from the centered position.

Abstract: A luminaire body for a surgical operation light with an annular reflector has at least two electric light bulbs (3, 4), a first bulb (3) of which with its socket is associated in normal operation with a given centered position (with respect to the reflector) in the stationary part of the luminaire body, while a second bulb (4) with its socket is situated in a reserve position away from the centered position; in case of a failure of the first bulb (3) the positions of the sockets (1, 5) of both bulbs (3, 4) are changed by an electromagnetically operated turning device (16) such that the second bulb (4) can be turned to the original centered position of the first bulb for reserve-bulb operation after the first bulb (3) has been withdrawn from the centered position.

Abstract: To achieve great security against failure in lamps for medical applications, especially lamps for surgery, two electric bulbs are placed each in a concave mirror of ellipsoidal shape as part of a reflector, the two concave mirrors having focal points which are aligned with one another along an optical axis. The concave mirror provided to serve as the main lamp is configured as a ring reflector, while the concave mirror designed to operate as a reserve lamp closes off the reflector on the side facing away from the direction of emergence of the light. Thus, in the event of a change from main lamp operation to reserve lamp operation, the illuminated field is maintained at least approximately in its size and the location does not change (X and Y directions).