Tech Exchange

Floorboard Locking Technology Features A/A Splicing

A locking technology can be widely used in the hardwood and laminate floor installation process. After being spliced, the two-locking structure has bearing capacity similar to that of a whole single material. The technology can be reversely disassembled, and both sides of the locking device are tightly sealed. The glue-free structure has multiple applications, including use in laminated boards, composite floorboards, furniture, and a new separable spliced process, other than welding, for metal boards with thickness over 5 mm.

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Reseatable Pressure Relief Valve Fixes Leaks

Reclosable pressure-relief devices that employ a frusto-conical valve assembly or spherical valve assembly have been found to leak under vacuum. A new technology fixes leaks in low-pressure (less than 50 psi) relief valves. The invention adds a ring inside the valve. Both the valve seat and the sealing surface of the valve head are annular planar confronting surfaces oriented substantially perpendicular to the valve axis, and the resilient valve seal is an annular O-ring. To form a vacuum- tight seal, the O-ring is compressed between two planar mating surfaces by the valve spring. Pressure relief capacity is maintained, while providing a vacuum-tight seal during normal operation.

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Preventing Adhesion of Cellulose to Steel

A client’s application joins cellulose and a resin binder. A combination of the binding agent and fibers sticks to the surface of the steel. The organization therefore seeks novel foams, coatings, and gels to act as a physical buffer between the fibers and the steel. The physical buffer must function up to temperatures of 400 °F. The solution may also provide a blanketing function to keep all particles together during transport of the loose fibers.

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Personal Cleansing Innovations

Personal cleansing after using the bathroom is a worldwide necessity, and various cultures solve that need differently. New devices must facilitate this type of cleaning and deliver soothing formulations onto the skin. The technology will serve as an alternative to Western dry toilet paper, European bidets, and moistened wipes. Proposed formulations must also reduce pain or irritation. Solutions may also contain common ingredients, including aloe, lanolin, or various vitamins.

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Hydrogen Degassing System Features Ceramic Rotor

A system for degassing hydrogen uses silicon nitride ceramic rotors. The technology’s rotors stir molten aluminum and disperse the gas. By adding bubbles of an inert gas, hydrogen is drawn out from the metal, which otherwise would cause voids and substantially weaken castings.

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CV Number Enables Tunable Ball Valves

A ball valve for process systems has a field-adjustable CV number. The CV number allows the valve to be “tuned” for its system. The ball, controlled by an actuator, is moved 0–90 degrees. An adjustable V-port then adjusts the CV number.

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Bacteria Elimination from Hard Surfaces

Long-term care facilities are subject to outbreaks of Clostridium difficile (C. diff) bacteria that form a hard shell, enter a vegetative spore state, and are thus able to withstand conventional cleaning. An active ingredient or mechanical/ electronic means must minimize the threat of C. diff and its spores. The bacteria proliferate when a person touches a hard surface where C. diff spores exist. A client seeks a way to break the transmission of bacteria and viruses from surfaces to hands and eyes. Speed of disinfection must be part of the solution.

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