Abstract: A valve actuator for a valved container containing a pressurized fluid, the actuator comprising a mounting to attach the actuator to the container, and characterized by a post-expansion chamber in communication with the outlet of the actuator in which residual fluid remaining in the outlet after use can expand, and a separate suction chamber in communication with the outlet conduit via a suction opening to suck residual fluid back toward the expansion chamber.

Abstract: The invention relates to a rotary table press with washing device and to a rotor for it, said rotor being provided at least with a bottom-punch guide ring (11) having guides (12) for bottom punches and with a die plate (17) arranged between the punch guide rings, wherein at least one sealing element (26) interacting with the associated punch is provided for the bottom punches. In order to improve the use of an automatic washing device, a leakage passage (30) for draining off the washing liquid is formed according to the invention in the bottom-punch guide ring for each bottom punch guide. The leakage passages are preferably to perform their draining function only when leakages are occur unnoticed at individual sealing elements of the bottom punch guides.

Abstract: A toothbrush head with bristles comprising tapered and non-tapered bristles, in which the non-tapered bristles extend to two different lengths from the face, being a first greater length LN1 and a second shorter length LN2. In a preferred embodiment non-tapered bristles are combined with tapered bristles in tufts which are inclined in opposite directions away from and towards the grip handle.

Abstract: A brush part for an electric toothbrush in which tufts of bristles are arranged in polygons, and in which the tufts of bristles lean, either around the polygons or inwardly and outwardly, so that the tuft alignments converge and preferably cross.

Abstract: Toothbrush heads with bristle tufts comprised of longer tapered bristles and shorter non-tapered bristles in respective embodiments comprising tufts which include both tapered and non-tapered bristles, and comprising an outer ring of tufts of non-tapered bristles round an inner region of tufts of longer tapered bristles.

Abstract: A process for making a toothbrush head comprising widthways adjacent sections, the process comprising the stages of first making the head in an injection moulding process with the sections relatively spaced apart from each other in a widthways direction, then secondly moving the sections of the so formed head relatively spaced closer to each other in a widthways direction. An apparatus for performing the process is also disclosed.

Abstract: A toothbrush head having a bristle carrier, and bristles held in bristle holders, the bristle holders being connected to the bristle carrier by resilient connectors which cause the holders to move resiliently as brushing pressure is applied to the bristles and also cause the bristle holders to rotate. A suitable form of connector follows a conical surface between the bristle holder and bristle carrier.

Abstract: A filling shoe for rotary tablet presses, comprising a filling shoe housing with at least one discharge opening for a starting product which is to be compressed and with a seal for sealing the gap between the die plate and filling shoe housing, which seal can be fastened exchangeably to a bottom wall of the filling shoe housing. In order to make it possible to achieve shorter downtimes when changing the seals, the seal in the mounted state is fastened to the bottom wall by means of magnetic force. Changing the seal can then take place, if appropriate even without any further aids, by overcoming the magnetic holding force and replacing the seal with a new seal. The invention also relates to the seal for sealing the gap, which seal can be fastened according to the invention by means of magnetic elements.

Abstract: The invention relates to a rotary table press with washing device and to a rotor for it, said rotor being provided at least with a bottom-punch guide ring (11) having guides (12) for bottom punches and with a die plate (17) arranged between the punch guide rings, wherein at least one sealing element (26) interacting with the associated punch is provided for the bottom punches. In order to improve the use of an automatic washing device, a leakage passage (3) for draining off the washing liquid is formed according to the invention in the bottom-punch guide ring for each bottom punch guide. The leakage passages are preferably to perform their draining function only when leakages are occur unnoticed at individual sealing elements of the bottom punch guides.

Abstract: A toothbrush with a cleaning zone with bristles, and with a deformable element by which the cleaning zone can be adapted to the shape of the tooth surface by the cleaning force, where the deformable element comprises flexible wings tapering in a wedge shape toward the cleaning zone and with guide elements between them, at least one of the wings and/or guide element is made of a compressible elastic material.

Abstract: The invention relates to a die table (10), for a rotary tablet press, comprising a rotating rotor (1) formed from the die table (10), a punch guide (5) for the upper punch (7) and a punch guide (3) for the lower punch (4). The die table (10) comprises several exchangeable dies (11) arranged concentrically around the rotational axis of the rotor (1) and aligned with the upper and lower punches (7, 4). According to the invention, the short set-up times for changing the press to other die shapes may be achieved, whereby the die table (10) comprise at least two recesses (12) and an insert piece (20) is exchangeably inserted in each of the recesses (12) which comprises several dies (11).

Abstract: Toothbrush heads with bristle tufts comprised of longer tapered bristles and shorter non-tapered bristles in respective embodiments comprising tufts which include both tapered and non-tapered bristles, and comprising an outer ring of tufts of non-tapered bristles round an inner region of tufts of longer tapered bristles.

Abstract: A brush head, in particular a toothbrush, with a base carrier (1) formed from a soft elastic material in which connecting elements comprising separate support rings (2) separated from one another and bearing a plurality of bristle tufts (4) are embedded, each of the rings having a bristle tuft threaded through. Preferably the bristle tuft can move axially in the support ring and is supported resiliently by the soft elastic material.

Abstract: A process for making a toothbrush head comprising widthways adjacent sections, the process comprising the stages of first making the head in an injection moulding process with the sections relatively spaced apart from each other in a widthways direction, then secondly moving the sections of the so formed head relatively spaced closer to each other in a widthways direction. An apparatus for performing the process is also disclosed.

Abstract: A valve actuator for a valved container containing a pressurised fluid, the actuator comprising a mounting to attach the actuator to the container, and characterized by a post-expansion chamber in communication with the outlet of the actuator in which residual fluid remaining in the outlet after use can expand, and a separate suction chamber in communication with the outlet conduit via a suction opening to suck residual fluid back toward the expansion chamber.

Abstract: A toothbrush head comprising a flexible bristle carrier such as an elastomer or gel pad or flexibly linked segments, on which bristles are mounted, with a support which supports the carrier at its base near the handle and at the opposite tip part, leaving the carrier unsupported thereby in a region longitudinally between these parts, the carrier being flexible such that it can deform under the forces of toothbrushing so that both its longitudinal and widthways sections become distorted. Preferably the support is also flexible.

Abstract: An injection moulding process for making a moulded article particularly a toothbrush consisting partly of a hard first plastics material by providing a first injection mould introducing a component into the cavity adjacent to the surface; injecting a plastics material into the cavity so that the plastic material is fixed to the component and the component forms part of the outer surface of the article. In a second moulding operation another material such as an elastomer may be injected. A toothbrush product made by this process is also described.

Abstract: A toothbrush made partly of a hard plastic material and partly of an elastomeric material, characterized in that at least part of the elastomeric material comprises an inner core (23) of a first soft elastomeric material wholly or partly enclosed within an outer flexible skin (24) of a second polymer material having different physical characteristics to the inner core polymer. Processes for making such a toothbrush are also described.

Abstract: Pumping and floating pistons (70) suitable for a hand pump (10) for a viscous fluid material such as a toothpaste, made of a plastics material coated with a barrier layer (75). A preferred barrier layer is a thermoplastic elastomer. The barrier layer of the pumping piston may be integrally formed into a one way outlet valve. The barrier layer reduces leakage of components of the fluid material out through the piston, or ingress of environmental components through the piston.

Abstract: An electrically driven toothbrush having a replaceable head section with a plug part which is engageable with a socket in its handle to connect its driveable head to its motor in the handle. The head section has a resiliently deformable end surface, and there is an engaging concavity and convexity in the respective meeting end surfaces of the plug part and the socket. The concavity and convexity engage to facilitate locking together of the head and handle. A separate replaceable head section for such a toothbrush is also provided.