Abstract: Oral hygiene formulations comprising foaming surfactants are dispensed in the form of foams by means of an air-driven propellantless dispenser. The formulations comprise mouthwashes, rinses and dentifrices containing one or more antimicrobial anti-plaque and anti-cariogenic agents.

Abstract: A system for delivering a chemical agent in the form of a foam, which in its preferred embodiment involves the use of a propellantless dispenser to deliver a formulation containing both an anionic surface active agent such as sodium lauryl sulfate as a foaming agent and hydrogen peroxide as a disinfecting chemical agent.

Abstract: A non-foaming, non-viscous, alcohol-free, water-based pressurized hair-fixative spray product for use as the total fill in an aerosol container by delivery from an actuated-valve of predetermined dimensions, particularly the vapor tap and stem orifice sizes.

Abstract: A lice comb comprises a handle and a resiliently flexible elongated member having the end portions thereof connected to the handle and teeth mounted outwardly from the member and extending in the same plane as the handle. A manually movable cam member is mounted on the handle and contacts the member opposite the side holding the teeth and intermediate of the end portions to flex the member outwardly relative to the handle between a minimum flexure position wherein the teeth have a minimum spacing therebetween and a maximum flexure position wherein the teeth have a maximum spacing therebetween. As a result the comb can be used for different textures of hair and the teeth can be easily cleaned.

Abstract: A hand-held microscope has two articulated members movable towards and away from each other for focusing. One member holds a specimen to be examined and has an object aperture with which the specimen is aligned during use. The other member has a lens aperture aligned with the object aperture and bears a lens member having at least two different lenses thereon and which is rotatably mounted thereon for bringing any one of the lenses into alignment with the object aperture.

Abstract: A nit comb and method of producing same wherein a plurality of metal teeth are formed with a minimum intertooth clearance of about 100 microns and mounted in a handle.

Abstract: A comb and a method of making a comb having a handle including two main surfaces having a common edge and a plurality of substantially parallel, spaced apart, elongated teeth extending from the main edge. Each tooth comprises identical first and second sections, each including a planar base portion. All of the first sections are aligned and all of the second sections are aligned and the planar base portions of the first and second sections of each tooth abut and are transversely offset with respect to each other by a distance less than the distance between adjacent aligned sections. In this way the resulting spacing between adjacent teeth is less than the tooth sections spacing.

Abstract: A device for practicing tennis rebounds comprising an anchor or weighted base, a tennis ball and a generally elastic cord connected therebetween. The line or cord is provided with adjusting means for varying the length of the cord from a maximum length to one-half thereof, thereby enabling the ball return speed to be controlled by setting a desired or predetermined length for the elastic cord. The greater the length of the elastic cord, the slower the return of the tennis ball.

Abstract: By providing a suction cup dart or shuttlecock in combination with a hand-held paddle or target which incorporates a dart-adhering or holding zone and a dart-rejecting zone, a unique game is provided. Furthermore, the suction cup portion of the dart or shuttlecock is flexibly mounted to the dart body, thereby allowing the shuttlecock or dart to hit the adhering zone of the paddle or target at angles other than merely perpendicular and adhere to the surface.