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Sterility, Dispersions, and one more question (Apr 03 2014)
Motor-winding, dielectric fluids for transformers, and an invisibility cloak (Mar 13 2014)
Heart therapies, solar collector, and OI portals for your company (Feb 20 2014)
Applying liquids, reflecting high-angle sun, and overcoming delay (Jan 22 2014)
Seed coating, micro-organism detector, and innovation as contact sport (Dec 10 2013)
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 yet2.com Technology Marketplace Report for Mar 20 2009
 featuring: Coatings & Packaging
 Featured TechPaks
 Technology solutions provided by companies
Shape-memory alloy fan blades vary their shape with temperature and stay quiet
The morphing of the shape of a fan's blade with environmental temperature can optimize the pushing effect of the fan on the medium (e.g. air, water, fluid etc.) with the environmental temperature. In cases where the physical properties of the medium change or when, due to lower temperatures of a device environment, there's no need to further cool down the system thus, the pushing force can be lowered. In cases where the speed of the fan cannot be modified (e.g. cooling fans attached to the engine in tractors), it is possible to obtain a variable output of air flow depending on temperature by morphing the shape of the blades with Shape Memory Alloy (SMA) materials embedded in the blade itself or discretely placed in the shaft of the blade. In this way, the device changes shape when the shape memory material changes its properties along with the temperature of a given environmental. Such a device needs no external power supply and is thus economic, reliable, and simple.

Tamper-evident packaging for consumer products
Most consumer consumption products require tamper evidence closures. Tamper-evidence properties are often achieved by adding secondary packaging like foil seals or heat-shrink seals, which inflates the cost of the container. This invention provides a proven technology to produce an injection-molded tamper-evident plastic lid for a container that can be used in the absence of a foil lid, and yet provide an effective hermetic seal. Even after its initial opening, the lid reseals air- and water-tight. The patent provides protection for claims relating to the lid, claims relating to an injection-moulding process for producing the lid, and claims relating to an injection-mould assembly for producing the lid. The product is already in full commercial production, and has captured significant market share in the market where it is used. The US dairy packaging industry is worth $3.5 billion p.a. This technology offers a product ideal for yogurts, ice cream, sauces, pates, cream, nuts, feta cheese, and even non-food items such as washing powder, paint and products where protection against moisture is required after opening.

High-brilliance, opalescent inks and coatings offer specialty color effects
This technology provides a method for preparing photonic crystals of selected metal oxides and fluorinated (meth)acrylates in a variety of colors, and formulating them into vehicle finishes, specialty paints, and inks. Uniquely, the crystals may form as mono-dispersed spheres on non-smooth substrates such as paper, wood, and textiles. The color they impart is stable and determined by the diameter of the mono-dispersed spheres. Multi-layer coating and ink formulations containing the three-dimensional photonic crystals produce interference effects. These coatings have a high brilliance and profound opalescence, very good color flop, and high color stability. The layers have good adhesion to each other and the mat and durability necessary for fine finishes. The formulations can be applied directly to the substrate or to a primer coat.

Update/revoke certificates in public-key cryptography
The wide use of public key cryptography requires the ability to verify the authenticity of public keys. This is achieved through the use of a certificate system. A certificate is a signed message that assigns properties to a public key.Certificates are issued by an off-line trusted certificate authority (CA). The CA may later revoke a certificate (prior to its expiration date) for various reasons. Thus, the existence of a certificate is not enough and a mechanism for on-line checking whether it was revoked or not is needed. To enable this check, another authority is used - a directory. The directory is an on-line non-trusted authority that answers queries on certificates. To compensate for it being non-trusted, the directory supplies a proof for the correctness of its answer. This technology, however, constructs an authenticated dictionary - a data structure that supports insert/delete and query operations (as a regular dictionary), along with authenticated queries, where each answer obtained from the dictionary is supplemented by a proof for its correctness. The authenticated dictionary is a combination of a hash tree and a search tree, enabling efficient updates (and thus low CA-to-directory communication and high update rates) and low directory-to-user communication.

Low-cost controller for individual solar panels cells maximizes power output
The inexpensive nature of these photovoltaic solar controllers allow each cell on a solar panel to have one, rather than have a single controller for two or more cells. The resulting increase in ability to track the maximum power point means that a solar panel can be "tuned" for maximum output and efficiency. Individual controllers track the maximum power point. The controllers are inexpensive because they require only off-the-shelf components for manufacture. Thus, they are extremely cost-effective for the amount of power produced by the panel.

Flat swivel drive for pumps, shutter-valves, actuating drives
The Flat Swivel Drive was originally developed as an ultra-flat drive for artificial hearts and implantable blood pumps. Thus it is designed for high durability and long term use. It is a new type of dynamic gear that powers an ultracompact Gar drive for shutters, valves, and lever arms with adaptive (approx. sinus/cosinus shaped) torque and speed. 1. Technology Benefit: smaller size, fewer parts, adaptive torque, optimized speed and torque behavior 2. Development Status: Gear Drive was already implemented in an artificial heart/blood pump and worked well for several million activations. 3. Know-how and Patents: One patent family with DE, EP, and US patent. One additional patent application. Very good Know-how. Inventor available, is R&D Director of medical Company. 4. Product Applications: 4.1. Lever arm drives, super flat construction 4.2. Swivel motion drives, super flat construction 4.3. Shutter and Valve Drives, adaptive torque and speed 4.4. Micromechanical Activator Drive, adaptive gear ratio.

GP-5 energy-efficient liquid-moving positive-displacement pump
Five years of Research and Development for a new revolutionary pump, combining the performance of positive displacement with the high volume of a centrifugal in one superior quality pump. Our pump is bringing new technology to the pumping industry. High head, lift, volume, efficiency, low RPM, and horsepower. It operates manually, or with an electric motor, hand drill, or gasoline. It's manually operated (7 to 1 Transmisson gear ratio) with an output of +75 gallons per minute. The pump also has five other gear ratios avaiable for different applications, and the pump castings can be made of a wide range of materials. Our company has manufactured this pump in the past and was sold throughout the USA. Meanwhile we improved our products. Early stages included prototypes, different models of pumps. We do have a new improved patent pending status which will introduce a whole new pump.

Efficient mixing of liquids at low Reynolds numbers
The present invention relates to a device and method for mixing substances, particularly very viscous substances in small volumes. Rapid mixing almost always requires some macroscopic flow, which is regularly induced by stirring or shaking. In order to provide efficient mixing the flow needs to be chaotic or turbulent. It is known that a flow is likely to be turbulent when the Reynolds number, Re, is large. In order to obtain a high Reynolds number, the liquid velocity and the tank size should be sufficiently large while the liquid should be of low viscosity. When the liquids are very viscous and/or the tank is small, the velocity required to create a turbulent flow may be so high, that it becomes quite impractical. There is a need to facilitate the mixing of substances, by providing a novel method and device that enables the efficient mixing of substances even very viscous, in small volumes, at arbitrary low Reynolds numbers. The present invention provides that adding minute concentrations (as low as 0.001% of fluid volume) of custom-designed additives to viscous liquids for industrial mixing enables efficient continuous mixing independent of tank size, Reynold's number, liquid viscosity, and at very low flow velocities. At a given flow, the addition of these custom-made additives decreases mixing time one thousand-fold.

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