Abstract: A system and method for installing roof insulation in commercial and/or industrial buildings in which a pattern of depending vertically oriented spindle fasteners are secured in and about the underside of the roofing and its associated support structure. Blanket and/or a radiant barrier type membrane insulation placed in position along the underside of the roof extending between and past the fasteners is adapted to be supported by longitudinally extending tandem end-to-end support bars secured to the fasteners by self-locking washers.

Abstract: An epoxy coating composition, a coating and a method of applying the coating composition to items to be used or being used in marine environments and otherwise susceptible to the deleterious effects of erosion and/or corrosion. The coating composition is comprised of a polyamine converter and an epoxy resin that can be applied either to virgin metal or to preexisting metallic items immersed below sea level. The coating in either situation is comprised of a plurality of layers of the epoxy composition sequentially applied about the affected surface area of the item with a wrap of vitrified cloth disposed intervening between juxtaposed of said layers. Where on site restoration of an item is to be performed, some or all of the layer applications can be conducted underwater by preceding application of the coating with an abrasive blasting of the surface to be coated.

Abstract: A corona charging method and apparatus is disclosed for charging discrete and relatively isolated three-dimensional surfaces of various compositions having a generally exposed surface from which the three dimensional surface extends. The applied charge serves to significantly enhance the wetting and bonding properties of the respective surfaces and is conducted with a relatively concentrated corona emission from discharge electrodes connected to a high voltage source and directed toward the three dimensional surfaces overlying an air gap. The exposed and more accessible surfaces can be treated concomitantly with a field effect diffusion of corona from additional electrodes directed generally toward the exposed surfaces of the composition.

Abstract: A free-standing shelf type cabinet for the storage of articles is constructed of an enclosed cabinet having a polygonal cross-section and on which at least one access door is provided. Within the cabinet, a plurality of shelves are mounted in a ferris wheel relation enabling the shelves to be progressively displaced to and past the access opening. A detent cooperates with the rotational support for the shelves enabling any selected shelf to be positionably retained at the access opening.

Abstract: A tubular adapter fitting for attachment to the service connector of a refrigeration unit enabling receipt of a quick disconnect coupler to attach the coupler end of refrigeration tubing in flow communication therewith. The fitting in comprised of a tubular body adapted at one end for mounting onto a service connector. A contoured periphery serves to receive a quick connect coupler almost instantaneously in a pressure tight interlock relation thereon. Two adapter fitting embodiments are disclosed, one of which is particularly suited to a threaded service connector of a type normally provided with the refrigerant unit of a vehicular air conditioning system. The second embodiment of the adapter fitting is more suited to servicing non-vehicular refrigerant systems in which a service connector is not normally provided in advance by the manufacturer of the equipment but must be provided by the serviceman on site.

Abstract: A demand type animal watering valve that is operable by animal mouth actuation of an exposed valve stem. The bulk of the valve including the valve body is comprised of a relatively inexpensive and relatively soft composition that if unprotected would be potentially chewable by the animal when watering. For protecting the soft material at least about the mouth engageable portion of the valve there is provided a mouthguard sleeve of significantly harder chew-resistant metal such as stainless steel. The sleeve is secured to the relatively soft body material in a manner preventing removal separation of the sleeve by the animal. Also disclosed are optional embodiments of a filter screen/orifice plug unit removably insertable in the valve. One embodiment includes a fine mesh screen secured to the inlet side of the plug in which are disposed a plurality of selectively openable parallel orifices for variably setting the desired flow rate of the valve.

Abstract: A track structure for retaining the liner of a liner type in-ground swimming pool is comprised of two component parts including an elongated length of a channel-like body section adapted to be secured about the perimeter of a liner-type pool and a channel-like insert adapted to be removably disposed within the body section. Both components are formed of polymeric plastic composition and both are configured at least partially complementary, so as to enable the insert to effect a snap-in interfit for securing the insert within the body. The insert when disposed within the body cooperates with an internal body surface wall to define a narrow clearance through which the liner can extend while securing the beaded edge of the liner against withdrawal. When the body and insert are assembled, a single exposed channel is provided, enabling a form board to be positioned thereat for the pouring and setting of aggregate deciking about the pool.

Abstract: The disclosed invention describes a method for cladding surfaces of an earth boring apparatus, or the like, with a hardfacing material having an entrained, or encapsulated, heavy metal refractory carbide. The method includes heating the surface to the incipient melting temperature and applying a molten super-alloy matrix material that has a melting temperature below the melting temperature of the carbide. The super-alloy, in a powder form, is pre-mixed with the carbide material, also in a powder form, such that, when the molten surface and the molten super-alloy cool, they form a metallurgical bond, at the surface, with the carbide material mechanically retained within the solidified matrix material.

Abstract: A system and method for installing roof insulation in commercial and/or industrial buildings in which a pattern of depending vertically oriented spindle fasteners are secured in and about the underside of the roofing and its associated support structure. Blanket and/or a radiant barrier type membrane insulation placed in position along the underside of the roof extending between and past the fasteners is adapted to be supported by longitudinally extending tandem end-to-end support bars secured to the fasteners by self-locking washers.

Abstract: The radiating portion of the antenna is formed from two similar radiating doublets (1,3; 2,4) which are located in a single plane and are orthogonal, with the slots between driven elements of the doublets crossing one another at the center (C) of the unit antenna.The two doublet modules (1,3; 2,4) are associated with the central conductors of three-plate lines which are orthogonal, with their extensions crossing one another beneath the center (C) of the antenna. Each three-plate line consists of the plates (1,3; 2,4) of a doublet, on the one hand, a reflector, on the other hand, and between the plates and the reflector, the central conductor. The reflector is common to the two doublets.

Abstract: An interjoist hanger assembly for supporting items to be hung is formed of a pair of elongated tubular sleeves interfitting telescopically slidable one within the other. Supported at the distal end of each of the sleeves is an axial screw and a floating collar having circumferentially distributed axially extending prongs or teeth. The sleeves effect an interlock when collapsed whereby they can be rotated in unison for threading one end into an adjacent joist. When the sleeves are expanded, the opposite sleeve end can be similarly threaded into the opposite joist. With each threaded attachment, the prongs of the surrounding collar are drawn into a gripping engagement with the joist surface thereat.A saddle secured snap fit onto the outer sleeve includes side flanges to which an electrical outlet box can be mounted for attachment of an item to be hung.

Abstract: A polymer plastic contraction-expansion joint element for the aggregate decking areas of a swimming pool. The element when used as a contraction joint is comprised of an elongated generally hollow body adapted for burial in the aggregate just below grade level. The body is formed of a bottom wall and parallel spaced apart upright sidewalls terminating at their upper distal ends in an open pocket including longitudinal protuberances oppositely extending along the inner face of the sidewalls. Adapted to overlie the body pocket at grade level in a removable mounting relation thereto is an imperforate polymer plastic cover having elongated skirts downwardly depending from the opposite longitudinal side edges thereof. The skirts are insertable between the body protuberances in a springlike interfit enabling the cover to be removed and replaced as appropriate.

Abstract: An improved pressure gauge construction in which the pressure inlet to the Bourdon tube is supplied through a tubular socket having alternate connections for either a low-connected or back-connected gauge arrangement. An adaptor is provided for threaded mounting one end into a selected of said socket connections while the other end extends outward of the gauge housing with a thread of choice for connecting to a fluid pressure source. A threaded plug seals the unused socket connection while an interlock secures the installed adaptor against unthreading removal.

Abstract: An electrostatic precipitator comprises an upright cylindrical vessel (10) containing a number of vertically spaced precipitator stages (12). Ducting (18) provides a path for gas flow from an inlet (14) to an outlet (15) passing successively through each of the precipitator stages (12).

Abstract: The system comprises input modules (Pei) receiving entering packets, output modules (PSi) transmitting outgoing packets, a control memory (M) with double access and divided into routing modules (PTi, PAj), and a resource control module (GR).It also comprises an input time-division bus (BHDE) to connect timewise input modules (PEi) to routing modules (PTI, PAj) selected in the central memory (M) and an output time-division bus (BHDS) to connect timewise routing modules (PTi, PAj) of the central memory (M) to output modules (PSi). The control module (GR) is bidirectionally connected to the input modules (PEi) and to the central memory (MO through the input time-division bus (BHDE), on one hand, and to the output modules (PSi) and the central memory (M) by the output time-division bus (BHDS), on the other hand.

Abstract: A rear window mirror apparatus for observing blind spot areas to the rear and side of an automobile and to optically transmit visualization thereof to the rear view mirror at the driver's station. Comprising the apparatus is a more or less U-shaped channel-like frame defining an open central cavity in which angled mirrors are secured for receiving outward reflections from blind spot areas and transmitting the reflections through a front wall aperture. A hinged lower support provides an adhesive pad for securing the frame to the window surface at the underside and an upper elongated slotted bar likewise including an adhesive pad provides for mounting the upperside onto the window surface. The longitudinal slot on the bar receives a bolt extending upstanding from the top surface of the frame. By adjusting the slot relative to thebolt the effective length of the bar can be varied to accommodate different window slopes of the various automobile designs for which such a mirror is contemplated.

Abstract: A polymer plastic drain apparatus for the aggregate decking areas of a swimming pool. The drain is comprised of an elongated trough adapted for burial in the aggregate and is formed of a bottom wall and parallel spaced apart upright sidewalls terminating at their upper distal ends in a bifurcated formation defining an intervening space of selected cross-section. Adapted to overlie the trough in a removable mounting relation thereto is an apertured grating having elongated skirts downwardly depending from the longitudinal edges thereof. The skirts are insertable within the intervening spacing of the bifurcated trough formation in a springlike interfit enabling the grating to be removed and replaced as appropriate. Internally of the trough are a plurality of longitudinally spaced transversely arranged sleeves extending between openings in the opposite sidewalls.