In supporting the curved lower portion of a thin-walled plastic container against deflection due to top loading during a filling, capping or like operation in order to prevent damage thereto, the improvement which involves confining support to a localized curved area of such lower portion only while maintaining a seating ring section substantially unsupported, thereby effectively accommodating containers for damage-resistant loading which have incrementally increased in height or assumed slightl...

The heat exchanger comprises at least one heat-transfer wall which forms a separation between a hot primary fluid and a secondary fluid to be heated. Each heat-transfer wall is either a vertical cylinder having a cross-section in the form of a circle with a wavy profile in the case of a tubular heat exchanger or a vertical rectangular plate having wavy corrugations in the case of a plate-type exchanger, a series of assembled plates being intended to form leak-tight compartments for receiving pri...

This relates to a semiconductor device and method for making same. At least one semiconductor device is formed in a polished silicon slice, and the device is framed by a deep diffusion of boron. The surface of the slice is then coated with a layer of silicon nitride, and a glass ceramic body is bonded to the silicon nitride layer. The device is next isolated by isotropic etching, and the silicon from beneath the device is removed with a selective etch so that metal interconnections can be made t...

A thin electrochromic display employs a transparent substrate with transparent electrodes and electrochromic material thereon forming actuatable electrochromic segments, a fibrous spacer member adjacent the substrate and impregnated in its central portion with electrolyte in contact with the electrochromic material, and impregnated in its peripheral portions surrounding the central portion with a sealing adherent resin, and a conductive foil member covering the central portion of the carrier and...

A method of structuring oxide layers, nitride layers or magnetic layers in such manner that a photolacquer mask is manufactured on a substrate and the layer to be structured is provided by means of cathode sputtering both on the photolacquer mask and on the surfaces of the substrate not covered with lacquer. The substrate is then treated with a solvent attacking the lacquer mask; the mask swells up and the parts of the layer to be structured present thereon are chipped off. In order to stimulate...

Thin-walled ovenable parts made from polybutylene terephthalate.

An electronic calculator structure comprised of a flexible printed circuit on a thin flexible dielectric material base to which are fixed a low profile solid state computing and driving elements, a readout register and a low profile flexible diaphram type number and function key structure large enough for finger operation, a P-70 Rayovac class thin battery, and an ON-OFF switch, all coupled together in manner to form a thin flexible calculator structure suitable for many end product uses such as...

Pressure sensing apparatus in which a mounting structure carrying a thin, pressure sensitive resistance wire is lodged in a gas passageway extending through an outer member. The mounting includes a relatively large end portion which extends substantially across the passageway to both shield the wire from direct impact by passing gas, and limit the flow of such gas by occluding the passageway. The secure wire mounting apparatus makes possible the use of very thin wires and a corresponding increas...

A novel plate system for thin layer chromatography comprises a supporting plate coated over about 50-90% of its area with an adsorbent layer, the uncoated surface comprising at least one strip of uniform width along an end of the supporting plate. Two such plates grafted and clamped in a lap-joint so that the edges of the adsorbent layers are in intimate contact provide an assembly on which a chromatogram developed on the first plate can be transferred in whole or in part onto the second plate. ...

Cadmium tellurite with a composition CdTeO.sub.3 is formed by reactive sputtering of a cadmium telluride target in an oxygen atmosphere.