Abstract: An earth anchored equipment support platform for supporting equipment at a desired elevation above the ground surface where the earth anchor is enclosed and concealed by the equipment support platform includes a top, a bottom and a sidewall joined with and formed along the perimeter of the top. An earth anchor receiving space is enclosed by the sidewall. A sight passage extends through the sidewall and into the earth anchor receiving space, wherein the earth anchor receiving space is viewable from an exterior position of the sidewall though the sight passage. Two or more equipment support platforms can be stacked, one on top of each other, in a partially nested arrangement to increase equipment elevation.

Abstract: An improved dowel fastener for compressive insertion within a recess, bore or aperture in each of two joint members of wood, metal, plastic or combinations thereof to frictionally retain one joint member to the other. The dowel fastener includes a flexible, resilient, tubular body having a preferably spiral slot extending from end to end and at least one and preferably two spaced tabs at positions along the slot. The tabs each extend from one slot edge across the slot toward the opposing slot edge and engage the inside surface of the tubular body adjacent the opposing slot edge. The body provides a cylindrical exterior gripping surface for engagement with the sides of the joint apertures and is sufficiently flexible for compression from its normal, uncompressed diameter for insertion in a smaller fastening aperture.

Abstract: A fastener clip assembly for forming a substantially concealed joint between panels of furniture, a shelf assembly or the like includes a pair of clips telescopingly assembled with one another to form a joint which prevents rotation between the clips and joint members. The clips are secured to respective joint members and assembled with a portion of the second clip received through the slot of the first clip such that offset engagement sections overlap one another while a resilient, flexible inclined section on at least one, but preferably both, of the engagement sections draws the clips and joint members together. An engaging member which resists disassembly of the clips may be included.

Abstract: A fastener clip for forming a joint between two furniture panels includes a pair of flanges spaced from a central member by a pair of legs. The central member is defined by a pair of arms having a slot therebetween. Preferably, the slot includes inclined wedging surfaces. One of the arms of the central member is connected to an access member, which opposes the other arm of the central member. The access member permits the securing stud to engage the slot of the central member by being moved laterally into registry with the slot, while the opposing arm of the central member prohibits contact between the securing stud and the furniture panel. An upwardly extending flap positioned in the leg opposing the closed end of the slot prevents contact between the securing stud and the furniture panel when the securing stud is disengaged from the slot.

Abstract: A dry marker board including a sheet of material having a writing surface upon which felt tip, erasable ink markers may be used. Preferably, the writing sheet is a sheet of ceramic-on-steel material. A shelf support, preferably made of wood, is mounted on the bottom portion of the writing sheet by fasteners such as nails or screws. Polyurethane is injection molded around the peripheral edge of the writing sheet, encapsulating the peripheral edge and sides of the writing sheet and the shelf support to form a unitary frame with a shelf.

Abstract: A wastewater treatment system for treating wastewater containing undesirable pollutants which comprises a housing having a bottom and defining an internal chamber. The internal chamber is provided with a first and second baffle member which cooperate to define a mixing zone and a separation zone. Wastewater (containing a sufficient amount of air so that the air present in the wastewater exceeds the solubility of air in the wastewater) is introduced into the mixing zone of the internal chamber, and an aerated water is sprayed into the wastewater to produce a quantity of air bubbles sufficient to promote the flotation of pollutants having a density approximately equal to that of the wastewater to form a froth. Pollutants having a density substantially greater than the density of water settled to the bottom portion of the housing. An effluent reservoir assembly (which forms a reservoir zone) is spatially disposed from the second baffle member so that a quiescent zone is formed therebetween.

Abstract: A treatment control system using a fluid using system wherein fluid is passed from the fluid using system during dump cycles occurring at periodic time intervals over a total dumping cycle. The fluid passed from the fluid using system during each dumping cycle is sampled and designated as a fluid dumping sample with each fluid dumping sample corresponding to the fluid passed from the fluid using system during one of the dump cycles. The total dissolved solids level in each of the fluid dumping samples is determined. Some of the dump cycles are designated as discharge cycles or treatment discharge cycles where the total dissolved solids level is above a predetermined high total dissolved solids level. Some of the dump cycles are designated as reuse cycles or treatment reuse cycles where the contaminant total dissolved solids level of the fluid dumping samples were determined to be below the predetermined high total dissolved solids level.

Abstract: A damper control apparatus for a fume hood which has a moveable sash, and wherein the damper control apparatus includes an axle assembly borne by the fume hood, a cable assembly borne by the sash and disposed in force transmitting relation relative to the axle assembly, and a damper borne by the fume hood and disposed in force receiving relation relative to the axle assembly and moveable along a path of travel into assorted operational positions which correlate with the position of the sash thereby regulating the amount of air withdrawn from the fume hood.

Abstract: A wastewater treatment system for treating wastewater containing undesirable pollutants which comprises a housing having a bottom and defining an internal chamber. The internal chamber is provided with a first and second baffle member which cooperate to define a mixing zone and a separation zone. Wastewater (containing a sufficient amount of air so that the air present in the wastewater exceeds the solubility of air in the wastewater) is introduced into the mixing zone of the internal chamber, and an aerated water is sprayed into the wastewater to produce a quantity of air bubbles sufficient to promote the flotation of pollutants having a density approximately equal to that of the wastewater to form a froth. Pollutants having a density substantially greater than the density of water settled to the bottom portion of the housing. An effluent reservoir assembly (which forms a reservoir zone) is spatially disposed from the second baffle member so that a quiescent zone is formed therebetween.

Abstract: A sash counterbalance device for a fume hood including a first cable having a first end and a second end, the first end being secured on the left side of a fume hood sash and wherein a first counterweight is secured on the second end of the first cable; a second cable having a first end and a second end, the first end of the second cable being secured on the right side of the sash, and wherein a second counterweight is secured on the second end of the second cable; and an axle which is mounted on the fume hood. The first and second cables are individually, separably, and concentrically wrapped about the axle such that movement of the sash causes a simultaneous movement of the axle by movement of the counterweights axle in a predetermined direction.

Abstract: A wastewater treatment system for treating wastewater containing undesirable pollutants which comprises a housing having a bottom and defining an internal chamber. The internal chamber is provided with a first and second baffle member which cooperate to define a mixing zone and a separation zone. Wastewater (containing a sufficient amount of air so that the air present in the wastewater exceeds the solubility of air in the wastewater) is introduced into the mixing zone of the internal chamber, and an aerated water is sprayed into the wastewater to produce a quantity of air bubbles sufficient to promote the flotation of pollutants having a density approximately equal to that of the wastewater to form a froth. Pollutants having a density substantially greater than the density of water settled to the bottom portion of the housing. An effluent reservoir assembly (which forms a reservoir zone) is spatially disposed from the second baffle member so that a quiescent zone is formed therebetween.

Abstract: A working surface including a substantially planar main body having a peripheral edge and first and second ends, the main body further having a male portion made integral with the first end and a female receiving station made integral with the second end, the male and female portions having complimentary shapes whereby individual working surfaces may be releasably joined together in, juxtaposed, end-to-end mating relationship to form a substantially continuous supporting surface.

Abstract: A framework which includes a plurality of angularly related elongated members interconnected by end connectors. At least one of the elongated members includes an elongated illumination device such as a noble gas discharge tube.

Abstract: A lamp of simple construction for selectively supporting a bulb or bulbs in multiple positions, wherein the bulbs are illuminating tubes such as fluorescent or neon tubes and the lamp does not substantially interfere with the illumination radiating from the bulb or bulbs. The lamp is generally comprised of a frame and at least one bulb holder located along the frame. The bulb holder is provided with an aperture for slidably receiving and holding the bulb to be supported, the bulb thereby being held by the bulb holder and supported by the frame.

Abstract: A noble gas illumination device such as a neon tube in which the glass neon tube is clear and uncoated and is surrounded by a clear plastic tube. The clear plastic tube may be tinted or colorless. If it is tinted, it alters the color of the light emanating from the device. Whether tinted or untinted, the clear plastic tube makes the uncoated neon tube appear to have a larger diameter, thereby creating the illusion that the electric discharge beam in the neon tube is extremely thin and focused and has the appearance of a laser beam.

Abstract: A one-piece, resilient fastener clip especially useful for securing furniture shelving, and particularly metal shelving, to side supports via headed studs extending from the supports. The clip is preferably formed from spring steel and includes a pair of resiliently interconnected flanges for securing the clip to a downwardly extending end flange on the shelf. The flanges preferably include slots for slidably receiving a stud, inclined ramp means to draw the shelf toward the support, and a tab for holding the clip on the shelf. The clip allows the shelf to rest on the stud and includes releasable locking means in the form of a third flange resiliently interconnected with one of the other flanges and having a locking aperture therein which is receivable over the stud head. The clip pulls the shelf toward its support with a maximum force when the locking aperture is received over the stud head.

Abstract: A structural unit comprises a rectangular base and floor with vertical walls attached to form an enclosure, and with a roof assembled thereto to form a miniature building, for containing a banking transactional computer, designated an automatic teller machine (ATM), which allows customers to withdraw currency and make deposits. The enclosure is designed for installation on narrow drive-through traffic islands and pedestrian walkways and may be used in shopping malls and retail outlets. The enclosure has interior space for private and secure servicing and maintenance of the ATM by bank and computer maintenance personnel. Through the use of an indexing turntable mechanism the ATM may be moved and rotated within the enclosure in order to present the operating portions and electronics of the machine for access required by the bank and computer personnel, without exposing them to conditions which encourage interference by outside agents or bystanders.

Abstract: A dowel fastener for frictionally engaging the sides of recesses, bores or apertures in wood, metal, and/or plastic joint members to hold the joint members together is disclosed. The dowel has a flexible, resilient, compressible tubular body with a spiral slot extending along its length. At least one end of the dowel is tapered and preferably includes inwardly angled, segmented, end flanges terminating in a circular, free end edge of smaller diameter than said body. The flanges lead the dowel into a reduced width or diameter recess or aperture upon assembly into a joint. The opposite end may also be tapered for insertion in a similar recess or include an apertured, planar end preferably formed from bent end flanges for securing the dowel to a surface with a screw or other fastener. Preferably, the diameter of the free end edge of the tapered end or ends is sized to prevent compressive insertion in an aperture or recess which is too small and would otherwise cause deformation or failure of the dowel.

Abstract: A fastener clip and joint structure incorporating same especially adapted for use with thin or narrow furniture parts, panels, or the like to reduce splitting or fracture of the parts when joined and/or stressed. The clip is formed from a one-piece metal plate, preferably of annealed spring steel for flexibility, having a raised, central, slotted portion and a pair of end flanges for securing the clip to one joint member. One end flange extends outwardly away from the central portion while the other extends under the central portion. A stud on an opposite joint member is slid along an inclined slot in the central portion to draw the joint members together. In one embodiment, an enlarged opening in the slot allows access through the slot to the end flange beneath the slot for fastening the flange to the joint member.