Abstract: A method of continuously producing an elongated strip-like fastener member is disclosed which facilitates highly efficient formation of the fastener member with a great multiplicity of resiliently flexible hook-like projections. The method comprises the formation of an extrusion of plastic material which is shaped between a pair of coacting first and second rollers. Notably, one of the rollers defines a plurality of hook-forming cavities about its periphery within which the hook projections of the fastener member are formed. The forming roller is suitably cooled so as to effect substantial reduction in the temperature of the molten plastic extrusion from which the fastener member is formed. In this manner, the fastener member may be removed or stripped from the forming roller without opening of the hook-forming cavities, thus promoting highly efficient formation of the fastener member without resort to unduly complex equipment or processes.

Abstract: In a plug and socket as for a computer wherein the plug has tabular projections on opposed ends and the socket has wire latches pivotally mounted between raised members into bores therethrough for releasably engaging slots in the projections to hold the plug in the socket, a replacement latch for replacing one or both of the wire latches. A pivot rod is disposed through and between the bores in the raised members. A body portion is disposed between the bores in the raised member and pivotally mounted on the pivot rod with an engaging lip extending inward to snap over the projection, when the plug is seated in the socket, in a first locking position to hold the plug in the socket. The body portion is pivotable from the first position to a second retracted position wherein the engaging lip is removed from engagement with the projection so that the plug can be removed. An optional operating arm is carried by the body portion.

Abstract: A low dielectric constant material for use in the formation of thick film circuits such as VLSI devices. The material comprises a thick film insulation matrix of standard viscosity; a thick film organic vehicle; and a plurality of dry, hollow, glass microspheres. The insulation matrix, vehicle, and microspheres are thoroughly combined into a homogeneous material of standard viscosity.