Abstract: A device yoke comprising a mounting plate having at least two openings to accommodate at least two different types of electrical devices and a device box attached to the mounting plate. The device box includes at least a side wall and a bottom wall for separating the wires to be routed into the box from the wires not routed into the box. The multi-device yoke can be combined with a multiple device cover plate to form a multiple device mounting system. The multi-device yoke and multiple device mounting system could optionally include terminal lug means attached to the mounting plate to provide a grounding lug to meet other electrical standards.

Abstract: The invention relates to the use of drill-pointed screws to attach electrical boxes to heavy gauge metal studs. The drill-pointed screws of the invention are at least two inches long and have a length to thread diameter ratio of at least 12 to 1. The electrical boxes of the invention have brackets that form a relatively steep angle to the stud, such a steep angle having proven necessary to get the drill-pointed screws to penetrate the metal. The electrical boxes may also include a second set of brackets that angle more shallow angle with the stud surface and are more suitable for use with nails. The electrical boxes are preferable made of extra-thick relatively shatter resistant engineered plastic and are preferably formed so that they can be vertically stacked in a nested fashion.

Abstract: A cover assembly for a floor box includes a ring, a cover, and a gasket. The ring is configured to support an electrical receptacle within an open upper end portion of the floor box. The cover has an access opening for providing access to the receptacle, and has an access door for closing the access opening. The ring, the cover and the gasket are configured for interconnection in installed positions in which a portion of the gasket is deflected into an annular configuration interposed radially between the ring and the cover. When the gasket is thus installed between the ring and the cover, the edge portion of the gasket establishes a seal that surrounds the access opening in the cover. Additionally, the cover has apertures for receiving fasteners that interconnect the ring, the cover, and the gasket in their installed positions. The access door is configured to overlie all of those apertures, and thereby to conceal all of those fasteners from view, when the door is in a closed position.

Abstract: An improved joint for a variable wall thickness conduit is disclosed. The joint includes a female joint section and a male joint section. The female joint section has a body portion which terminates in a first support surface and a sealing sleeve which extends beyond the first support surface. The sleeve has a first sealing surface and a thickness. The male joint section has a body portion that terminates in a wall and a sealing nose that extends beyond the wall. The wall has a width greater than the thickness of the sleeve. The nose includes a load bearing surface, a second sealing surface and a recess in the second sealing surface. The female joint section aligns and joins to the male joint section, the load bearing surface being in force transmittal relationship with the first support surface, whereby a gap is formed between the first sealing surface and the second sealing surface.

Abstract: A doorbell system having a sound memory for storing and playing a CD quality doorbell sound is disclosed. Said doorbell system includes a receiver unit for receiving an indication of a doorbell button being pressed, a code detector for commanding the sound memory to output stored sound signals and sound producing means for outputting a CD quality sound. Also disclosed is a method for storing a CD quality sound into a doorbell system.

Abstract: An electrical junction box for use within a curved structure is disclosed. The electrical junction box includes a housing member and a lid assembly. The lid assembly includes a base section and a cover portion. The base section has a planar surface and the cover portion has a radius of curvature substantially conforming to the radius of curvature of the curved structure. A method for installing a light pole using the invention is also disclosed.

Abstract: A joint coupling is disclosed for connecting sections of conduit. The present joint coupling includes a male connector portion having an inner side and an outer side, having a barb on one or both of the sides. A gasket is received on the male connector portion, and has one or more fins on the side opposite the barb. A female connector portion receives and engages the male connector portion and includes a first side having a lock down lip for engaging the barb and a second side for contacting the gasket fins. The fins bias the connector portions in an interference to create a transverse locking force that securely retains the connector portions. The connector portions can be formed directly on the sections of conduit, or can be formed on a discrete conduit cap or an intermediate coupler, for joining sections of conduit.

Abstract: An extrusion assembly includes a stationary housing section, and an outer die and mandrel for defining an annular passageway centered about an axis. The outer die and mandrel are held stationary against rotational motion about the axis. A rotor is rotationally supported on a shaft projecting into the annular passageway along the axis within the housing, for rotational motion about the axis. The rotor includes a melt channel for rotationally conveying an extrusion to the annular passageway, so as to form a helically-wound conduit that advances linearly through the annular passageway. A gear train is operative between the stationary housing, the rotor and the shaft, to hold the shaft stationary relative to the stationary housing upon rotation of the rotor.

Abstract: A microencapsulatable solvent adhesive composition for coupling plastic conduits, such as pipes, connectors and related fittings comprises a water-insoluble polymer and a mixture of volatile organic solvents for the polymer, each of the solvents having 6 to 40 carbon atoms. This solvent adhesive composition is suitable for microencapsulation by aqueous-based microencapsulation processes. A plurality of microcapsules encapsulating the solvent adhesive composition are bound to a polymeric surface of a conduit, such as a pipe connector or fitting, by a binder composition, to form a surface coated with a layer of rupturable microcapsules. When the microcapsules are ruptured upon joining of the coated conduit to a second conduit, the volume of the released solvent adhesive composition is sufficient to cement the surfaces together.

Abstract: A microencapsulatable solvent adhesive composition for coupling plastic conduits, such as pipes, connectors and related fittings comprises a water-insoluble polymer and a mixture of volatile organic solvents for the polymer, each of the solvents having 6 to 40 carbon atoms. This solvent adhesive composition is suitable for microencapsulation by aqueous-based microencapsulation processes. A plurality of microcapsules encapsulating the solvent adhesive composition are bound to a polymeric surface of a conduit, such as a pipe connector or fitting, by a binder composition, to form a surface coated with a layer of rupturable microcapsules. When the microcapsules are ruptured upon joining of the coated conduit to a second conduit, the volume of the released solvent adhesive composition is sufficient to cement the surfaces together.

Abstract: A microencapsulatable solvent adhesive composition for coupling plastic conduits, such as pipes, connectors and related fittings comprises a water-insoluble polymer and a mixture of volatile organic solvents for the polymer, each of the solvents having 6 to 40 carbon atoms. This solvent adhesive composition is suitable for microencapsulation by aqueous-based microencapsulation processes. A plurality of microcapsules encapsulating the solvent adhesive composition are bound to a polymeric surface of a conduit, such as a pipe connector or fitting, by a binder composition, to form a surface coated with a layer of rupturable microcapsules. When the microcapsules are ruptured upon joining of the coated conduit to a second conduit, the volume of the released solvent adhesive composition is sufficient to cement the surfaces together.

Abstract: An electrical box is provided in which a box enclosure is provided that includes a base, sides and at least one yoke for receiving an electrical device. The box enclosure can be formed of discrete components which can be assembled to form a single or multiple-gang box. A collar is provided as an interface between the box enclosure and the mounting surface. The collar hingeably retains a cover for optionally covering the electrical device. The cover in turn hingeably retains a cord door for admitting an electrical cord and other such cables. The cover and cord door each have respective gaskets which provide a fluid-tight seal to protect the electrical device. The cover can be manufactured for a single-gang or a multiple-gang electrical box.

Abstract: A microencapsulatable solvent adhesive composition for coupling plastic conduits, such as pipes, connectors and related fittings comprises a water-insoluble polymer and a mixture of volatile organic solvents for the polymer, each of the solvents having 6 to 40 carbon atoms. This solvent adhesive composition is suitable for microencapsulation by aqueous-based microencapsulation processes. A plurality of microcapsules encapsulating the solvent adhesive composition are bound to a polymeric surface of a conduit, such as a pipe connector or fitting, by a binder composition, to form a surface coated with a layer of rupturable microcapsules. When the microcapsules are ruptured upon joining of the coated conduit to a second conduit, the volume of the released solvent adhesive composition is sufficient to cement the surfaces together.

Abstract: A microencapsulatable solvent adhesive composition for coupling plastic conduits, such as pipes, connectors and related fittings comprises a water-insoluble polymer and a mixture of volatile organic solvents for the polymer, each of the solvents having 6 to 40 carbon atoms. This solvent adhesive composition is suitable for microencapsulation by aqueous-based microencapsulation processes. A plurality of microcapsules encapsulating the solvent adhesive composition are bound to a polymeric surface of a conduit, such as a pipe connector or fitting, by a binder composition, to form a surface coated with a layer of rupturable microcapsules. When the microcapsules are ruptured upon joining of the coated conduit to a second conduit, the volume of the released solvent adhesive composition is sufficient to cement the surfaces together.

Abstract: A timed photocell switching circuit is disclosed which senses a light-to-dark transition and applies power to a lamp load for a preset period of time. After the preset period has expired the timed photocell circuit turns the lamp load off for the remainder of the night until a dark-to-light transition resets the circuit after which it can be triggered for another timing cycle. Once the light-to-dark transition triggers the timing cycle the ambient light level cannot disrupt the circuit. In addition, the circuit can be reset regardless of its timing position by momentarily cycling power to the circuit.

Abstract: A touch sensor circuit is disclosed for sensing a person's touch and for switching power to an AC load. The touch sensor circuit includes a sense input circuit, logic circuit, power switching circuit and power supply/reference circuit. The power supply and reference circuit tracks the AC line-hot input, and supplies DC power to the circuit. The sense input circuit is configured such that when a person touches the touch input pad, a circuit is created between the positive voltage reference and earth ground, thereby generating an easily detectable voltage swing on an internal sensing node. The logic circuit senses the voltage variation on the sensing node and generates a pulse which toggles power to the power switching circuit and connected load.