Abstract: A connector assembly for providing electrical connection to an insulated conductive wire, the connector assembly including: a housing defining a channel for receiving the insulated conductive wire; a cover hinged to the housing and configured to close over the channel to cover the insulated conductive wire; and an electrically conductive pin having a first end in the channel and a second end in the housing beneath the channel.

Abstract: A swivel joint assembly for plumbing systems includes a first fitting having a receptacle end and a second fitting having a plug end positionable in the receptacle end. The plug end and receptacle end having cooperating mating surfaces, one of which has a locking groove divided into first and second portions, the more distal of which is shallower than the other. The other surface has a groove to receive a locking ring also positioned in the locking groove. A barrel end of the plug receives a seal member to seal against the inner surface of the receptical end.

Abstract: A latch assembly for recreational vehicle doors in which a closure door and a screen door are hinged about common axes includes a latch bolt which is adapted for mounting on a vertical stile of the screen door and is movable into engagement with a keeper plate. A latch bolt retainer is mounted on an inside surface of the prime closure door. The latch bolt retainer has portions which cooperate with the latch bolt on the screen door such that when the prime closure door is closed against the screen door, the retainer captures the latch bolt on the screen door and retracts it from the keeper and retains the latch bolt in a retracted position. The capturing movement is accompanied by alignment movement of the screen door latch bolt with respect to the retainer so that the screen door is held in a predetermined aligned position in the retainer.

Abstract: A corner construction, forming a connection joint, for a rectangular frame for a storm door or window formed of extruded aluminum box-like frame members. One frame member is proportioned to nest within the side walls of the other frame member, and the frame member ends are especially trimmed to form a rigid non-sagging interconnection. The wider frame member is trimmed to form a 45.degree. wall partially extending through the frame member terminating at a straight section, while the intersecting frame member is trimmed with a V-shaped notch spaced from its butt end with one wall defining the notch proportioned to engage the 45.degree. sloping wall of the wider member, and the butt end of the narrower frame member engaging an inside abutting connecting web of the wider frame member. Each frame member is further formed with a stepped interconnecting web which extends along the 45.degree. abutting surfaces to provide a substantial area of contact.

Abstract: A centrifugal blower wheel consisting of a wire hoop, a disk member and a plurality of separate blower blades arranged about the periphery of the wheel are operatively connected to the hoop and the disk member by a flange formed on each end of the blades. The flanges are rolled around the hoop, hoops or hoop and disk member such that the blades are operatively spaced around the periphery of the wheel.

Abstract: An air diffuser (10) is disclosed which has the significant advantage of employing only three subassemblies at the point of installation, including a base (12), a cone assembly (14) and a single bolt (16) to fasten the subassemblies together. Contoured rods (26, 28) are mounted with the base (12) to receive channels (48) on a series of brackets (46) to align the cone assembly and base. The brackets (46) forming the channels (48) also perform the function of securing a middle and lower diffuser cone together. A method of manufacture is also disclosed.

Abstract: A ceiling ventilation device, mountable in an opening in a ceiling between a pair of ceiling joists, includes a pair of mounting brackets. Each bracket, attachable at its ends to a pair of ceiling joists, includes a pair of spring biased mounting tangs spaced along the bracket. A housing defines an air intake opening and an air outlet opening and further defines, on each of two opposing sides thereof, a pair of tang receiving recesses spaced for alignment with and engagement by the tangs. A fan assembly, including a propeller assembly and a motor connected thereto, is mounted in the housing. Once the mounting brackets are connected to ceiling joists and positioned on opposite sides of an opening in a ceiling, the housing may be raised up into the opening such that the recesses in the housing are engaged by the tangs.

Abstract: A line of forwardly curved blower wheels of different diameters incorporates blades of the same angular extent in all wheels but with the radii of curvature of the individual blades proportional to the diameter of the wheel wherein they are incorporated. In addition, the center disks of the double inlet wheels and the end plates of the single inlet wheels are provided with novel mounting structure comprising segments bent out of the plane of the disk or end plate and secured to opposite ends of the hub member by which the wheel is mounted on a shaft, and the individual blades are retained in complementary slots in the disk or plate and fillet welded to the disk or plate respectively.

Abstract: A casement type window is composed of a frame and sash which are independently made, each comprising a unitary prefabricated synthetic plastic shell having bonded therein a wooden frame which faces interiorly of the building wherein the window is mounted. Synthetic plastic elements of the frame or sash are accurately associated and brought together under pressure at mitered corner abutment joints which are heat fused to form an integral self supporting member before being united with their wooden frame components.

Abstract: Method of making grooved, bell-ended thermoplastic pipe. In order to remove the core from undercuts, most of the molded article is cooled until substantially rigid while the bell-end is cooled more slowly. The article is ejected from the mold while the bell end is still soft enough to be deformed during ejection but recovers its shape after removal from the mold.