A trimaran has its floats displaceable from normal extended positions to retracted positions close to the central hull and is arranged to have improved stability at large angles of heel with the floats retracted. The retraction is actuable responsively to the heel of the craft so that if the heel angle becomes undesirably large, the retraction of the floats produces a self-righting moment. The floats are also extendable when the craft has righted itself and as it continues underway. The crew can...

A water-proofing/sound-proofing coating composition comprises, in order, from a surface to be coated (A) an adhesion promoter, (B) a seal coat comprising (1) a polyurethane (2) a heat absorber, (3) a nonvolatile extender, (4) a volatile solvent, and (5) an inert filler, and (C) a membrane coat comprising (1) a polyurethane formed from (a) a mixture of high molecular weight polyols and low molecular weight chain stiffeners and (b) a polyisocyanate, (2) a nonvolatile extender and (3) a volatile so...

For purposes of color and surface structure visual comparison, the placement of a color temperature changing light filter in the optical path of light reflected from an object or objects to an observer.

Mechanical plating is carried out in container which is simultaneously slowly rotated and rapidly axially reciprocated. The container may be mounted at one end of a cantilevered leaf spring, a single motor simultaneously rotating the container and driving eccentric weights which sinusoidally deflect the spring. Plated parts, liquid, impact media, and other barrel contents may be discharged into one end of an operatively connected open end separating or posttreating drum which tumbles the parts w...

A surface cleaner wherein abrasive particles are directed against a surface to be cleaned, after which the abrasive particles rebound into the cleaner and return for recirculation. Several features are involved. First there is provided an accelerator for the normally gravity flowing abrasive particles to accelerate the particles towards a throwing wheel wherein the abrasive particles are spread over a greater depth of an associated throwing vane. Some of the abrasive particles will not rebound e...

A housing for electronic and electrical units comprising a display device or an operator interface, whereby the display device and/or the user interface extend(s) over the entire surface of the housing or casing.

This invention provides a surface fastener formed of a warp backed woven fabric comprised of a front base fabric and a rear base fabric, an engaging element yarn for forming an engaging element being woven into one or both of the front and rear base fabrics, an engaging portion being formed so that the engaging element projects on the surface of the front base fabric, a warp yarn on a non-engaging portion at a selvage portion is woven by leno weaving structure so that fluffy phenomenon is preven...

In one embodiment, a surface scanning system comprises a radiation directing assembly that scans a surface using a Cartesian scanning pattern; and a radiation collecting assembly that collects radiation reflected from the surface. A scattered radiation collection system is included that measures the scattered light from the surface.

The present invention relates to methods of use for photocatalytic cleaning compositions and photocatalytic cleaning compositions effective to degrade soils deposited on a surface, to reduce the accumulation of soils on a surface, and to act as an antimicrobial agent.

A surface template is disclosed. In one illustrative embodiment, the surface template includes at least two template panels of similar size and shape and disposed in spaced-apart relationship to each other. Each of the at least two template panels has a pair of side edges disposed in generally perpendicular relationship to each other and a surface edge extending between the pair of side edges. A method of forming a surface between adjoining surfaces is also disclosed.