An exchangeable overlay for changing the character representations associated with the keys of a keyboard. The overlay is disposed on the keyboard and has openings to receive each key thereof with the inner portion of each opening above an associated key sloped to form a character bearing surface of easy visibility.

The elasticized overlay is particularly adaptable for use in an athletic type shoe which includes a tongue and a modified blucher construction. The modified blucher is fabricated without eyelets and receives thereover the elasticized overlay. An elasticized fabric together with suitable attaching strips is affixed to the shoe along one edge to form the elasticized blucher overlay. The elasticized fabric extends substantially the entire length of the blucher construction and has the free edge pro...

An overlay for an electronic circuit used as a diagnostic apparatus and a method of conducting the diagnosis using the overlay. A plurality of temperature sensitive areas which are made from encapsulated liquid crystal zones are positioned on the overlay in accordance with the spatial configuration of the electronic components with which the overlay is to be used. Each of the temperature sensitive areas is aligned with a respective component on the electronic circuit and each of the liquid cryst...

A method of producing an overlay coating on a substrate such as a turbine blade which comprises: (1) plating a protection layer comprising a metal matrix M.sub.1 containing particles of CrAlM.sub.2, (2) plating an anchoring layer comprising a metal layer containing larger particles, and (3) spray coating a thermal barrier of a refractory material.

An automatic overlay device is disclosed having a web for carrying a multiplicity of overlays. Individual overlays can be extended over a photocopying area by drive motors. A sensor is provided for counting markings on the web to indicate the number of overlays on the web, the sensor issuing a signal and the overlay device having a non-volatile memory responsive to the signal from the counting sensor for storing information concerning the number of overlays. Controls on the automatic overlay dev...

An overlay is described for a keyboard wherein the keyboard includes a plurality of convex, depressible keys that extend above openings in a panel surface, each key having an associated function indication. The overlay comprising a molded plastic, planar member sized to cover substantially the extent of the keyboard, and having both keyboard and user sides. The keyboard side exhibits a plurality of waffle-like convex chambers created by orthogonal intersecting walls, each convex chamber surround...

An overlay mattress has a plurality of internal elevating means, such as inflatable bladders, for raising selected portions of the mattress to achieve a wide range of patient positions. A fluid such as air may be supplied from a conventional surgical room air supply, a compressed canister, or a compressor to inflate the bladders. A fluid distribution system controls the flow of fluid to desired bladders. The overlay mattress may be used in conjunction with conventional surgical tables and mattre...

The present invention provides a new and improved overlay vernier that can increase the overlay measurement accuracy. The overlay vernier of the present invention comprises an inner square vernier and an outer square vernier. The outer vernier comprises a central square opening and four trapezoid-shaped openings surrounding the central square opening.

A keyboard overlay that may be adjusted to fit over a variety of keyboards. The overlay is self-supporting so that potential damage to the keyboard is limited, and requires no straps or other retaining devices so that removal and replacement of the overlay is simple. It is particularly intended for use by young children. The overlay includes a support having telescoping crossbeams configured to permit adjustments for keyboards of varying sizes.

The overlay film of the invention is obtained by forming a substrate layer composed of a resin composition comprising an ethylene copolymer such as ethylene-methacrylic acid ester copolymer and the like and a crystalline polyolefin having a melting point of 110.degree. C. or higher on at least one side of the base layer composed of a crystalline polyolefin and the like by any method such as co-extrusion-laminating and the like followed by cooling. The overlay film is excellent in physical proper...