A chip card with a chip module having an integrated circuit and, for external contacting, has on a main face a contact zone with a number of contact areas which are spaced apart from one another and are electrically connected to the integrated circuit. At least one contact area is made up of first functional regions with first surfaces and of second functional regions with second surfaces, and the first surfaces of the first functional regions lie higher with respect to the main face than the se...

An article such as a diaper or bed pad which includes a pad, an absorbent ply and a polymeric cover ply of extruded synthetic resin, may advantageously be made in various forms having, if desired, a synthetic resin cover ply light in weight and selectively given variable pin or tape retention strength by varying extrusion according to the strength needed to make the film stronger or weaker or softer or more flexible.

A trestle system is made to support fluid material conveyors in the air above the earthen overburden covering permanently frozen earth that is generally referred to as permafrost. The system comprises aligned trestles each embodying two limbs crossing each other at a point spaced well above the overburden surface, the limbs having their lower end portions embedded in the frozen earth and having portions above their crossing point connected by a tie beam upon which the conveyor is carried. The li...

The invention is directed to a metallic easy-opening can end, and to a method of manufacturing the same, the can end having a tear panel which is highly resistant to blowout pressure. The can end is first drawn between a preforming punch and a die to an outwardly open concave configuration, and is thereafter compression scored between a scoring punch and a scoring anvil to reduce the thickness of the drawn metal, thus forming the removable tear panel.

A glass slide which has a matted area. This matted area is formed by a ground surface area of the slide, and this matted area as well as the remainder of the slide are perfectly free of any particles of glass. The matted area extends between an end edge of the slide and an edge which is perfectly parallel with the end edge.

An improved dosimeter for monitoring working areas in which air, preferably in a relatively large volume, is pumped through the dosimeter at a controlled constant flow and any particles or vapors in the air are collected on a filter, the improvement is the use of A variable drive pump connected to the filter and driven by an electric motor and controlled by a feed back circuit of an integrator and an amplifier and the pump maintains a constant flow of air through the dosimeter; In the operation ...

An antishoplifting system for premises in which goods are sold and in which signal transmitters are affixed to the articles of goods. Each of the transmitters has a continuously effective first signal emitter which cooperates with a detector at the entrance or exit of the premises to signal removal of an article with the transmitter thereon. In addition, each transmitter comprises a self-contained second signal emitter, which requires no external energy source and is activatable upon removal of ...

Aluminum or other coating material is deposited on the surface of one side of a strip after which ink is deposited on preselected areas of the coated strip. The ink is then cured and the aluminum removed from the uncovered areas after which the ink is removed from the covered area of the aluminum.

A method of treating barren earthen areas for inhibiting air and sun spoilation is disclosed, the method comprising forming an aqueous slurry of calcium sulfate hemihydrate with a small amount of defoamer using a quantity of water about 25-56% above normal consistency, the hemihydrate particles having a surface area of about 4,000-16,000 square centimeters per gram; and spraying the slurry onto the barren area to form a set, substantially air-impermeable covering to the barren area that will sub...

An arrangement for preventing access of bacteria and other contaminants to an area in which medical operations are carried out, having first instrumentalities for producing a stream of sterile gas, second instrumentalities for directing the stream tangentially over the area to form a gas curtain which prevents access of contaminants to the area, and third instrumentalities for preventing ambient contaminants from penetrating into the stream of sterile gas.