Abstract: This invention provides a self-powered dental hygiene device having an outer housing with three sections, a battery section at one end, an intermediate electric motor section and at the second end a transmission section with a head end section at the distal end. The head end section includes an aperture extending fully therethrough so as to be open at both ends, transverse to the transmission section and designed to hold from either end a replaceable dental bit designed for reciprocating longitudinal motion. The casing is shaped such that the first battery section extends at an angle of between 7 and 12 degrees relative to the transmission section, and the aperture is preferably perpendicular to the axis of the transmission section. The dental tool bit held within either end of the aperture has a hollow plenum for containing a fluid to be administered during use and a pressurizing means is secured to the tool to provide for the expression of the fluid through openings in the tool blade.

Abstract: The present invention teaches a closed loop energy system including means capable of managing both the cooling cycle and the fuel/oxidant gas flow in conjunction with a fuel cell. The system includes a plurality of galvanic cells, gas flow conduit means, internal fluid flow conduit means, heat exchanger means, liquid-gas separator means, and gas repressurization means.

Abstract: The present invention provides a handbag, for example a lady's handbag, especially a fashionable evening bag, which is equpped with two or more handles. The handles can be in different styles and are removably attachable to the handbag by easily operated, discreet snaps insertable into sockets on the handbag.

Abstract: This invention provides a compact and convenient dental tool container which is particularly useful for storing dental posts, post wrenches and reamers, and stops for reamers, plus a gauge, coordinating several of a dentist's requirements in a helpful way. A handheld circular tool holder has a number of peripheral compartments for the tools and a selector lid rotatable on the tool holder which selector lid has an opening to access the peripheral compartments. Optionally, a secondary compartment and access opening in the lid provide storage for the post wrenches. A novel breakaway tab locks the lid closed for distribution and marketing, and preferably engages in a unique gauge block for sizing the reamers; alternatively an indexing ratchet restricts rotation of the lid. The invention includes a kit comprising the container charged with the several tools described.

Abstract: A self-actuating variable pitch marine propeller which incorporates two or more blades having cylindrical shafts which are rotatably connected to a central hub via cylindrical joints; the blades rotate about and translate radially, relative to the hub center, along the blade shaft, or shank, axis. In operation, the blades move radially outwardly from the hub center as they rotate from lower to higher pitch. The blades are biased towards the lower pitch. As the propeller rotational speed increases, centrifugal forces act on the blade mass creating a radially directed outward force. This radially outward force, upon reaching a sufficient magnitude, causes the blades to move radially outward. A blade positioning mechanism connected between each blade and the hub directs the blades to rotate to a higher pitch angle as the blades move radially outward.

Abstract: A dental tool is disclosed having a hollow cylindrical body portion, with an enlarged angular ring at one end, said ring having an abrasive coating thereon.

Abstract: A water-cooled friction-type cutting dental tool is disclosed comprising an at least partially hollow cylindrical body portion having an external circumferential cutting surface, an interior circumferential surface defining a hollow space, and an external annular transverse end cutting surface at one end. The end cutting surface surrounds a central opening to the hollow space; in the hollow space, a centered elongated member is secured so as to be substantially concentric to and held partially within the hollow space and partially extending beyond the hollow space, beyond the end cutting surface. The portion of the elongated member extending beyond the end cutting surface has a smooth rounded surface for limiting the cutting depth of the tool, both longitudinally and transversely. The portion within the hollow space has a cross-sectional dimension such that an annular channel is defined between the elongated member and the interior circumferential surface.

Abstract: In an internal combustion engine wherein the air inlet ports are opened and closed directly by the reciprocating movement of the piston, the crankshaft is laterally offset from the central plane common to the longitudinal axes of all of the cylinders. This results in a substantial increase in the power output of the engine.

Abstract: A method for repairing damaged metal surfaces. A marred painted surface, for example, the painted sheet metal forming automobile or truck bodies, which has been damaged by scratching or chipping of the paint to expose metal, is touched up so as to renew the continuous painted appearance and to prevent corrosion of the exposed metal by applying touch-up paint to the marred metal surface, and rubbing the touched-up surface and the immediately surrounding unmarred finished surface with a soft, flexible sheet material which has been wetted with a touch-up paint solvent composition, to remove the excess paint inadvertently spread over the old finish surrounding the scratch or chip. The flexible sheet material with the solvent is rubbed over the touched-up area only after the touch-up paint has partially set, generally from about 1 to about 15 minutes after application.

Abstract: There is provided a combination dental tool for forming a bore in a tooth stub and which can then be used for the anchoring of a dental prosthesis to the stub. The combination tool is formed having a first cutting end portion and an opposite, and second, holder end portion, to be held by a dental handpiece. The holder portion is formed adjacent a crown anchor portion and the holder portion can be removed after the bore is formed. Preferably, the crown anchor portion is formed of a softer material which can be readily formed to the desired shape for the prosthesis. The cutting portion preferably has alternating sections of larger and smaller diameter and has laterally facing cutting surfaces to form undercut portions along the bore to aid in firmer seating of the anchor post.

Abstract: The present invention provides an electrically powered, hydraulic drive system for a vehicle, with the capability of being recharged with electrical energy from vehicle momentum, utilizing the hydraulic drive system. The power for the electric motor, which drives the vehicle wheels through a hydraulic rotator, is obtained from an energy storage device, which can be recharged by recapturing vehicle kinetic energy during braking of the vehicle, through an electric generator which is linkable to the hydraulic rotator. The hydraulic system includes a central hydraulic rotator driven by the electric motor or driving the generator, and satellite rotators driving the wheels, including dirigible front wheels.

Abstract: This invention provides a holster assembly comprising a handpiece holster for supporting a dental handpiece and a power pack holster for supporting a power pack. The assembly is desinged to enable the equipment to be stored on a vertical surface such as a wall or pipe, and to support the power pack in several different and convenient modes whilst the dentist uses the handpiece. The power pack holster includes a clasp which can both support the power pack on the dentist's apparel and in a unique manner on a horizontal surfaces whilst the handpiece holster has a mounting plate which can cooperate with the clasp to support the power pack holster on the handpiece holster.

Abstract: There is provided rotatable pressure tight pipe joints and non-rotatable pressure tight pipe joints. The rotatable pressure tight pipe joints preferably have mating spherical surfaces with a sealing ring overlapping the joint between two pipe ends and compression means resiliently holding the two body parts of the joint in contact. In the non-rotatable joints, the intersecting surfaces form a zigzag cross-section and are compressibly clamped together.

Abstract: There is provided for use in a bathtub or shower, a folding seat assembly, which is mounted on a wall, and which includes an additional seat support which is also attached to the wall at a height above that of the seat. When folded, the mechanism is substantially contained within an enclosure.

Abstract: The present invention teaches a closed loop energy system including means capable of managing both the cooling cycle and the fuel/oxidant gas flow in conjunction with a fuel cell. The system includes a plurality of galvanic cells, gas flow conduit means, internal fluid flow conduit means, heat exchanger means, liquid-gas separator means, and gas repressurization means.

Abstract: This invention provides a self-powered dental hygiene device having an outer housing with three sections, a battery section at one end, an intermediate electric motor section and at the second end a transmission section with a head end section at the distal end. The head end section includes an aperture therethrough, transverse to the transmission section and designed to hold a replaceable dental tool, designed for reciprocating longitudinal motion. The casing is shaped such that the first battery section extends at an angle of between 7 and 12 degrees relative to the transmission section, and the aperture is preferably perpendicular to the axis of the transmission section. The dental tool bit held within the aperture has a hollow plenum for containing a fluid to be administered during use and a pressurizing means is secured to the tool to provide for the expression of the fluid through openings in the tool blade.

Abstract: This invention relates to the removal of hypochlorite groups from aqueous effluent solutions, so as to permit the disposal of the effluent by deep well injection. More particularly this invention relates to the catalytic decomposition of such hypochlorite groups from scrubbing water effluent used to remove chlorine from a gaseous effluent, wherein a solid catalyst is dissolved, recycled and reprecipitated in situ.

Abstract: A dental tool is disclosed having a hollow cylindrical body portion, with an enlarged angular ring at one end, said ring having an abrasive coating thereon.

Abstract: There is provided a self-actuating, variable pitch propeller having a plurality of blades. All of the blades are automatically movable between a first, relatively lower pitch position and a second, relatively higher pitch position, substantially simultaneously and equally in response to achieving a predetermined combination of propeller rotational speed and hydrodynamic loading on the propeller blades. The blades are releasably locked to prevent pivoting of the blades, at least in the lower pitch position, but preferably can be locked in both the high and low pitch positions. More preferably, a feedback force is transmitted from the blade to the locking mechanism to vary the locking force in response to the net turning moment on the blade. The locking mechanism are released in response to the combined effects of centrifugal force generated by the blades and other portions of the propeller and the hydrodynamic loading on the blades.

Abstract: There is provided a multi-rail vehicle system, which can be used to improve the efficiency of existing systems and to reduce risk of derailments. The systems comprises a vehicle designed to ride upon a pair of conventional outer rails and an additional load-carrying central rail. The central rail comprises a pair of slanted rails having external surfaces which extend, preferably, substantially perpendicularly one to the other, and are joined at an apex pointing upwardly. The intersection of the central rail surfaces coinciding, preferably, with the central line of the rail. The vehicle of the present invention comprises a central traction wheel with an axle secured to the vehicle by means permitting vertical linear movement and rotation about a vertical axis, the wheel, being rotatably secured about the horizontal axis of the axle. The vehicle also includes two or more pairs of outer wheels on axles; the wheels are designed to ride upon the three rails.