Abstract: A method and apparatus for dispensing a fluid in a conduit and more particularly for dispensing lubricant within an electrical conduit for facilitating pulling electrical cables through the conduit. The apparatus is in the form of a cartridge disposed in the conduit at an end thereof. The cartridge is made of a pair of sealed and separable members. One of the members is a flanged sleeve forming the casing of the cartridge, in which is coaxially disposed the other member forming a tubular support member or carrier for a mass of resilient and absorbent lubricant impregnated porous material compressibly packed between the inner surface of the sleeve casing and the carrier. A cable pulling strand, or fishtape, is passed through the tubular carrier, and the cables to be pulled through the conduit are attached to the end of the fishtape. A plug inserted in the open end of the tubular carrier prevents the fishtape and the cables attached thereto from being pulled back through the carrier.

Abstract: A method and apparatus for dispensing a fluid in a conduit and more particularly for dispensing lubricant within an electrical conduit for facilitating pulling electrical cables through the conduit. The apparatus is in the form of a cartridge disposed in the conduit at an end thereof. The cartridge is made of a pair of sealed and separable members. One of the members is a flanged sleeve forming the casing of the cartridge, in which is coaxially disposed the separable member forming a tubular support member or carrier for a mass of resilient and absorbent lubricant impregnated porous material compressibly packed between the inner surface of the sleeve casing and the carrier. A cable pulling strand, or fishtape, is passed through the tubular carrier, and the cables to be pulled through the conduit are attached to the end of the fishtape. A plug inserted in the open end of the tubular carrier prevents the fishtape and the cables attached thereto from being pulled back through the carrier.

Abstract: A sheet of extruded material is provided with a breakaway line by positioning a pin in the extrusion die in a manner such that the pin extends into the path of the material being extruded to divide a portion of the material into two streams which rejoin each other past the pin and weld together to form an autogenous bond between the converging surfaces. In a preferred embodiment the breakaway line is present in the sides of a U-shaped channel of the type used as a duct for electrical wiring.

Abstract: A pin structure for a wiring duct and wire holder modular system for use in wiring electrical equipment as used in control panels and electrical cabinets for machine tools, industrial installations, computers and the like, consisting of modular units for supporting and distributing to electrical equipment a plurality of electrical conductors which are routed through a plurality of wiring duct modular units interlocked end to end or at a right angle to each other for forming branching wireways, or T-connections, and turns, or L-connections.

Abstract: A modular assembly for mounting a plurality of fuses in electrically insulating enclosures or blocks in side by side relationship on a plane mounting surface. The assembly includes a single sidewall L-shaped fuse support and insulating enclosure and a separate end barrier wall which snap together, forming a double sidewall insulating enclosure of U-shaped cross-sectional configuration. Each L-shaped enclosure includes provisions for interlocking assembly to adjacent L-shaped enclosures. Thus, additional single sidewall enclosures can be assembled to form a block which provides complete electrical insulation for any desired number of fuses.

Abstract: A support pin assembly for mounting a wiring passageway cover on a wiring passageway base. The assembly, made of plastic material, consists of a pin and a support clip having a mounting aperture for fastening to the wiring passageway base. The clip has a pair of pin-mounting apertures spaced on opposite sides of the mounting aperture. There is a latching lip at the edge of each pin-mounting aperture. The base of the pin is generally U-shaped with extending legs each terminating in a hook configuration for locking engagement with the latching lip of one of the pin-mounting apertures.

Abstract: A wiring duct, or wireway, of the type used in electrical equipment for supporting and retaining electrical conductors and for permitting individual conductors to be routed to and from the wiring duct, in the form of a U-shaped channel having sidewalls, at least one of which has a plurality of longitudinally spaced slits open to the edge of the wall defining a plurality of flexible finger-like members. Each slit is substantially wider at one end than the other and has sides diverging at a predetermined angle towards the edge of the sidewall but terminating proximate each edge by a narrow gap restriction permitting passage of the conductors routed through the slit as a result of the deflection of the flexible finger-like members. The width of each slit at its widest portion is at least 1.5 that of its width at its narrowest portion.