A toothbrush includes a handle and a bristle-carrying head part, which are connected to each other by a neck part, the head part having a multiplicity of tufts of bristles consisting of bristles. An anchor is oriented at right angles to the longitudinal axis. Two or more tufts of bristles have a bristle tuft half with bristle ends standing up higher in relation to the bristle ends of the other bristle tuft half.

A toothbrush includes a handle and a bristle-carrying head part, which are connected to each other by a neck part, the head part having a multiplicity of tufts of bristles consisting of bristles. An anchor is oriented at right angles to the longitudinal axis. Two or more tufts of bristles have a bristle tuft half with bristle ends standing up higher in relation to the bristle ends of the other bristle tuft half.

A toothbrush includes a handle and a bristle-carrying head part, which are connected to each other by a neck part, the head part having a multiplicity of tufts of bristles consisting of bristles. An anchor is oriented at right angles to the longitudinal axis. Two or more tufts of bristles have a bristle tuft half with bristle ends standing up higher in relation to the bristle ends of the other bristle tuft half.

A method and device for attaching and detaching material to a c-channel groove without requiring tools and without needing to access an end of the c-channel. The device comprises a coil-shaped element that is resiliently compressible and connected to a desired material. Through biasing or twisting the coil-shaped element, it is insertable at any point along a c-channel groove. The coil-shaped element is secured within the c-channel groove against separation therefrom through friction. A portion of the coil-shaped element can be extended outside of the c-channel groove for easy removal.

A method and device for attaching and detaching material to a c-channel groove without requiring tools and without needing to access an end of the c-channel. The device comprises a coil-shaped element that is resiliently compressible and connected to a desired material. Through biasing or twisting the coil-shaped element, it is insertable at any point along a c-channel groove. The coil-shaped element is secured within the c-channel groove against separation therefrom through friction. A portion of the coil-shaped element can be extended outside of the c-channel groove for easy removal.

A toothbrush includes a handle, a head at a distal end of the handle comprising a bristle plate, a hole extending through the bristle plate, a plurality of bristles at least partially disposed in the hole and extending from the hole in a direction away from the head, and a reservoir in fluid communication with the hole. Fluid in the reservoir enters the tuft holes and is wicked out of the head of the toothbrushes by capillaries formed between the bristles.

Pruning plants that exude sticky sap may leave pruners gummed up and barely useable. Cleaning edged cutting tools presents injury risks to nursery and farm workers, so a need for rapid and effective cleaning machines exists. This pruner cleaning machine includes a motorized rotor assembly of scrubber discs facing each other and a helical center brush disposed between them. The scrubber discs include helical ramps and step faces at the ends of these ramps which conform to the ends of the helical scrubber, so that the spacing between the scrubber discs may be accurately controlled by the number of turns of the helical scrubber, including partial turns. The rotor may be reconfigured for various types of pruners by selecting from among various lengths of helical scrubbers. Properly configured, by using this machine and its inventive scrubbing rotor, gummed up pruners may be cleaned in seconds.

Pruning plants that exude sticky sap may leave pruners gummed up and barely useable. Cleaning edged cutting tools presents injury risks to nursery and farm workers, so a need for rapid and effective cleaning machines exists. This pruner cleaning machine includes a motorized rotor assembly of scrubber discs facing each other and a helical center brush disposed between them. The scrubber discs include helical ramps and step faces at the ends of these ramps which conform to the ends of the helical scrubber, so that the spacing between the scrubber discs may be accurately controlled by the number of turns of the helical scrubber, including partial turns. The rotor may be reconfigured for various types of pruners by selecting from among various lengths of helical scrubbers. Properly configured, by using this machine and its inventive scrubbing rotor, gummed up pruners may be cleaned in seconds.

A toothbrush comprises a handle; a head connected to the handle; and a plurality of bristles, respective ones of the plurality of bristles including a first end having a tapered first tip, a second end having a tapered second tip, and a substantially cylindrical shaft extending between the first end and the second end. Respective ones of the plurality of bristles are fastened to the head by a fastener at a fastening point along the shaft, the fastening point being located nearer to the second end than to the first end such that the first end extends from a surface of the head to a first height and the second end extends from the surface of the head to a second height. A difference between the first height and the second height is greater than or equal to 2.25 mm.

A toothbrush comprises a handle; a head connected to the handle; and a plurality of bristles, respective ones of the plurality of bristles including a first end having a tapered first tip, a second end having a tapered second tip, and a substantially cylindrical shaft extending between the first end and the second end. Respective ones of the plurality of bristles are fastened to the head by a fastener at a fastening point along the shaft, the fastening point being located nearer to the second end than to the first end such that the first end extends from a surface of the head to a first height and the second end extends from the surface of the head to a second height. A difference between the first height and the second height is greater than or equal to 2.25 mm.