Abstract: Disclosed herein is a welding helmet having a cartridge coupling structure. The welding helmet comprises a helmet body configured to cover and protect the welder's head, an opening being formed at a front surface of the helmet body, a protective cover provided along a periphery thereof with a packing such as rubber, the packing having a protruding wing portion and serving to prevent harmful gas and foreign substances from reaching the inside surface of the protective cover, a cartridge coupled to the opening by interposing the protective cover and adapted to intercept intense light generated upon welding so as to protect the welder's eyes, and coupling elements to detachably couple the cartridge to the helmet body.

Abstract: A needle-less three part medical fluid flowline connector comprised of a relatively rotatable male Luer housing and a female Luer valve actuator includes a compressed elastomeric valve element having a fluid passageway therein which extends from an axially aligned end on one side of the valve element to an off-center positioned end on the other side of the valve element and avoids the use of a cannula and septum which is pierced during valve opening. Rotation of the compressible valve element with respect to the housing in which it is seated is prevented by interengaged fingers and grooves on the housing and valve element. Withdrawal of the valve actuator from the housing is prevented by a abutting radially extending surfaces and an annular bulge and groove on the actuator and housing respectively. An interengageable longitudinally extending finger and diametrically spaced grooves on the actuator and housing enable the user to readily position the valve in an open or closed position.

Abstract: A climbing trainer comprising a movable climbing training wall surface defined by a continuous belt rotatably disposed about a pivotable frame and controllably actuated to rotate at a selected speed, the pivotable frame being rotatably supported by a support frame and the relative rotational position of the pivotable frame and support being selectable to provide a desired inclination of the climbing training wall within a range including positive inclinations and negative inclinations from a maximum negative inclination were said wall is disposed horizontally facing downward to a minimum negative inclination where said wall is disposed vertically, the trainer also comprising a control panel accessible to a user from the climbing training wall and at least one emergency stop switch coupled to an accessible actuatable pad.

Abstract: A portable bone distraction apparatus comprises a frame having a pair of relatively moveable parts which are respectively connectable to the bone parts on opposite sides of a break and tissue condition sensors positionable on opposite sides of a break. The sensors determine tissue conditions such as temperature or oxygen content. The apparatus includes a microprocessor control circuit which governs rate and frequency of distractions with automatic termination or reduction of the rate and/or frequency of distraction if sensed conditions proximate the break exceed predetermined programmed values.

Abstract: A foldable caster, particularly suited for use with a swimming pool reel support, is foldable approximately 270.degree. between an operative position and a stowed position and is magnetically or otherwise secured in at least the storage position.

Abstract: A manually operable hand-held unit for eliminating air from a hose to be used as a pool vacuum hose having a quick coupling adaptor for connecting the air-evacuated hose to the inlet of a powered pool skimmer pump to eliminate the necessity of evacuating air from the hose by manually sucking pool water with the mouth.

Abstract: An improved carrying strap for carrying a long hose such as a corrugated plastic pool vacuum hose has a shoulder loop of unvarying size and a variable size hose carrying loop which may be quickly cinched around multiple turns of a hose to be carried. The strap uses a single rigid connector having a pair of parallel bars around which the continuous strap is wrapped to form the loops.

Abstract: Hazardous radioactive waste is compacted and cast into safely handled monolithic castings having a radiation barrier wall completely enclosing the radioactive waste by centrifugal casting processes in which the barrier wall may be either a pre-formed shell transported to the jobsite or it may be formed by biaxial centrifugal casting and curing of the barrier wall in a mold. When a pre-formed shell is used, means provided for thickening the radiation barrier if necessary by biaxial casting of additional barrier material inside of the shell. Castable radioactive material is cast inside the barrier wall before removal of the casting mold from the finished cast monolith. The cast monolith is supported for rotation as the mold is removed therefrom so that additional impact resisting and radiation barrier material can also easily be applied to the exterior surface monolith if radiation leakage exceeds tolerance levels.

Abstract: The invention relates to a sensor (1) for non-invasive measurement of sound, pressure and vibration on the human body which features a transducer in the form of a transducer membrane (23) to achieve a very good response characteristic coupled with low weight and small size. The transducer diaphragm (23) is preferably configured as a piezoelectric foil which converts the mechanical input variables into electrical signals which can be processed by means of processor units.

Abstract: An artificial fingernail or tip formed of polymer plastic contains light diffusing means located only within the front distal portion, the light diffusing means including, a plurality of minute depressions within and throughout at least the upper surface of said polymer strip for providing a textured roughened surface to obtain a natural appearing contrast between the front distal portion and the back proximal portion of the nail. In an additional aspect, the appearance is further enhanced by inclusion of slight pigmentation of the plastic material.

Abstract: A method wherein uncured urethane formulations are bonded to a cured rubber or synthetic rubber substrate in such a manner so as to provide greater bonding strength than has been achieved previously in urethane formulation bonding to rubber or synthetic rubber.