Abstract: An irrigation dressing is provided including a hollow inflatable tubulardam with a central opening adapted to surround the wound of the individual. A semi-hard resilient clear plastic window is attached to the dam, such that the central opening is completely enclosed on a front surface of the dam. The dressing includes an inner peripheral ridge and an outer peripheral ridge extending beyond a bottom or back body-engaging surface of the dam which facilitates drawing a vacuum. A plurality of connectors are attached to a front planar face surface of the clear plastic window. At least one connector is pivotable about an axis parallel to the front planar surface of the window. A self-sealing plug is disposed inside the dam so that the dam can be inflated to selected pressures using an associated hypodermic needle or the like.

Abstract: A socket, a plurality of which are to be arranged in a row on a wiring board, comprises hook-like engagement elements formed on opposite side surfaces thereof along a direction of the row. Each of the hook-like engagement elements is engagable with a counterpart of an adjacent socket, and a clearance is formed between each of the hook-like engagement elements and the counterpart of the adjacent socket.

Abstract: An electrical connector for use in connecting one printed circuit board to another printed circuit board in which the electrical contacts of one board exert zero-force on the electrical contacts of the other board. The connector includes a housing of generally U-shaped configuration having a receptacle into which the contacts of one circuit board are inserted to make electrical contact with flexible contacts in the receptacle of the connector, the flexible contacts normally being farther apart than the entrance opening into the receptacle so that there is no force imposed on the contacts entering the receptacle. A spring driver in the receptacle forces the flexible contacts into firm electrical contact with the contacts entering the receptacle only after the latter has been fully inserted into the receptacle.

Abstract: A rotating-telescoping base structure for lamps or light bulbs is described. The structure may be rotated up to 320.degree. and may be telescoped outwardly from the base structure. This enables use in applications where a longer neck dimension is needed or alignment of the fixture without unscrewing it from a socket is to be carried out.

Abstract: A hollow airfoil damper blade formed by sheet metal. The walls of the blade are formed by two sheets crimped together at the edges. The blade tapers from the center toward the edges and has two pairs of V-shaped stiffening ribs formed by corrugations in the sheets. The ribs project nearly one half the blade thickness to enhance the strength of the blade and its resistance to deflection. The ribs cooperate to form a channel which closely receives a stub axle in each of its ends to provide for pivotal mounting of the damper blade. The axles are contacted directly by and welded to each of the ribs.

Abstract: In an installation of this type, several chambers divided into groups A, B, C, D, are provided, the several groups of chambers B, C, D are traversed drying medium, while another group of chambers A is e traversed by a gaseous medium for the regeneration of the adsorbent present in this group of chambers. The partial streams of the drying medium have different moisture contents and are used in different phases of a drying process. Continuous switching takes place between the gas streams and the chambers, so that each of the chambers is periodically traversed, at first, successively by all of the partial streams of the drying medium in order of increasing moisture contents, and subsequently, by the gaseous medium to regenerate the adsorbent. Following each switching, at least one of the chambers of each group is assigned to the next following group in the cycle.

Abstract: A heater for use with hot tubs formed from material subject to damage from excessive heat, the heater comprising a heating element arranged within a chamber adjacent a thermally conductive plate with one or more hollow extensions penetrating through a surface portion of the hot tub to permit direct heat transfer between the thermally conductive plate and the hot tub interior. The thermally conductive plate is preferably formed with transparent inserts permitting light from the heating element to enter the hot tub, the heater also preferably including means for communicating additional hot tub accessories with the hot tub interior. The heater may also be employed with other liquid containers, for example, storage tanks which may be alternatively heated by solar energy.