Abstract: A containment pipe fitting has an inner member (40; 260), an outer member (42; 262), and a plurality of centralizers (48) positioning the inner member within the outer member. The fitting has at least one connection interface (37; 38; 39; 254; 255) having an internal surface portion (72) of the inner member sized to receive and join a portion of an associated inner/main pipe (31; 32; 33) and an internal surface portion (80) of the outer member sized to receive and join the portion of an associated outer/containment pipe (34; 35; 36). The connection interface further includes an external surface portion of the outer member dimensioned to receive a closure coupling or collar (100; 100?).

Abstract: A containment pipe fitting has an inner member (40; 260), an outer member (42; 262), and a plurality of centralizers (48) positioning the inner member within the outer member. The fitting has at least one connection interface (37; 38; 39; 254; 255) having an internal surface portion (72) of the inner member sized to receive and join a portion of an associated inner/main pipe (31; 32; 33) and an internal surface portion (80) of the outer member sized to receive and join the portion of an associated outer/containment pipe (34; 35; 36). The connection interface further includes an external surface portion of the outer member dimensioned to receive a closure coupling or collar (100; 100?).

Abstract: A pipette holder for retaining a pipette at a plurality of angles relative to the holder includes a first housing portion and a second housing portion wherein the second housing portion supports the pipette. The pipette device also includes a pivot mechanism pivotally coupling the first housing portion and the second housing portion.

Abstract: A pipette device for aspirating and dispensing liquid, the pipette device comprising: a housing including a handgrip portion; and a bulb contained within the handgrip portion of the housing, the bulb compressible by a user to facilitate aspirating and dispensing of liquid.

Abstract: A toothbrush which is particularly well adapted for properly cleaning tooth surfaces and interproximal areas having a plurality of tufts of bristles mounted in the head of the toothbrush with the tufts cut in a series of at least two rounded peaks extending laterally across the head and in which the tufts of bristles may be arranged in at least two longitudinally disposed outer rows defining an inner area lying therebetween and at least one longitudinally disposed inner row is positioned in the inner area, with the tips of the inner row of tufts of bristles being feathered.

Abstract: The present invention relates to dental hygiene devices carrying dental hygiene elements and to a method for assembling them. The dental hygiene devices have two intersecting cavities, with a dental hygiene element positioned in one cavity and a plug positioned in the other cavity. The plug engages a portion of the stem, thereby locking the dental hygiene element in place in the device.

Abstract: A dental hygiene system in which a single elongated handle having a recess in its distal end receives a plurality of carrying members holding different dental hygiene elements. The carrying members have resilient portions retained in the handle recess by way of either a latching portion in a slot in the handle or by way of a frictional fit in the handle recess. A lever is positioned in the slot in the handle for releasing the carrying members with the latching portion.