Abstract: An improved fine bubble diffuser and diffuser system is provided. The diffuser includes a filtered blow-down tube for containing an internal gas pressure within the diffuser and allowing water to be removed from the system and further includes a filter disposed between the blow-down tube and the diffuser for filtering solids from water entering the diffuser.

Abstract: An echo ranging gun (10) is disclosed which is useable with high pressure gas wells having gas pressure exceeding 15,000 psi. The gun (10) is connected to the needle valve (30) typically encountered on a well having high pressure. The needle valve can have a diameter as small as approximately 1/8 inch. The gun (10) has a passage (38) which is exposed to the gas in the wellbore (14) and a volume chamber (46). A poppet valve (56) is movable between open and closed positions in the volume chamber by rotating a wing handle (88) connected to a head (78) within the volume chamber (46) which has a ramp (80) to contact the poppet valve (56) to move the valve to the closed position. A bleed valve (112) is used to bleed the wellbore gas from the volume chamber to create a predetermined pressure differential between the passage (38) and volume chamber (46). Further rotation of the wing handle (88) causes the poppet valve (56) to be released from the ramp at a down step (86).

Abstract: A saw wherein an arbor is mounted to drive a circular saw blade from below a flat work surface upward through a slot in the work surface to sever any work piece suitably disposed on the work surface. A guard/clamp above the work surface is lowered to engage and clamp each such work piece on the work surface before the saw blade begins its ascent. A sensor is mounted on the guard/clamp to sense the presence of a work piece at a location immediately on the work piece feed side of the saw blade and adjacent a saw fence. The sensor prevents operation of the saw when the sensor fails to establish the presence of a work piece on the work surface.

Abstract: Welding carriage, including an articulated body having support wheel sets on its end sections, one of said end sections supporting a drive assembly movable toward and away from a track upon which the carriage travels, the drive assembly including two tandem drive wheels driven by an electric motor supported by the drive assembly. The carriage may support one welding head or plural welding heads, so that one or more weld beads may be formed as the carriage travels past a section of a welding groove.

Abstract: A density compensating float is used in conjunction with a stop-fill valve for limiting the filling of a tank. The primary application of the density compensating float is for use in LPG tanks. The compensating float includes a portion thereof having graded volumetric segments which correspond to the changes in density for a particular fluid, such as propane. For a given quantity of fluid in the tank, the float has an essentially constant angular position despite variations in the density of the fluid, and therefore changes in buoyancy of the fluid, as a result of changes in temperature. Thus, fluid at any temperature can be input into the tank and the stop-fill valve will be activated when a given quantity of fluid has been received without regard to the temperature of the fluid. This provides maximum filling of the tank while limiting the fluid to the maximum safe quantity.

Abstract: A video filter is provided for use in an image processing system wherein correlated video data is received by the video filter in a cellular format. The filter includes structure for simultaneously filtering at least four cells of the correlated video data.

Abstract: An improved hand tool for cutting and crimping fence wire is provided. The tool includes a toggle actuated mechanism for crimping wire between two rows of linearly translatable teeth and for cutting wire between a pair of cutting elements.

Abstract: A zoned HVAC system for a building is provided with three control zones: an internal zone (14), a perimeter zone (16) and a skin zone (18). The internal zone (14) provides cooling of internal heating loads from equipment and personnel as determined from internal zone (14) thermostats (43, 46, 48). Perimeter zone (16) provides cooling against interior and solar heating loads, with thermostats (51, 52, 53, 54) controlling associated sectors dampers (56, 57, 58, 59). The skin zone (18) provides both heating and cooling against thermal transmissions through the building exterior (10). Each skin zone sector (30, 31) is assigned to a plurality of perimeter zones (24, 25, 26, 27). Operation of a skin zone sector (e.g. 30) is effected by a control box (e.g. 64) receiving inputs from perimeter zone thermostats (e.g. 51, 52) with a control output functionally related to the perimeter zone sector with the lowest cooling demand.

Abstract: An adapter (10) as disclosed which is employed to join a heater (12) and an air conditioning evaporator (14) in an air conditioning system. The adapter (10) is provided with a series of slidable panels (60, 62, 64) which permit the adapter to be sized to fit a particular heater (12) by breaking off selected segments of the panels along a series of frangible connections (74, 84). In a second embodiment, an adapter (100) is provided with end panels (108) and side panels (112) which also include segments that can be broken off from the panels along a series of frangible connection (118). The panels (108, 112) are secured about the edges of the frame (102) of the adapter (100).

Abstract: An antimicrobial composition which exhibits excellent mildness characteristics comprising from about 11-17% of an ionic detergent, from about 1.1 to about 7% foaming agents, from about 2.2 to 14% of a moisturizer/emollient agent, from about 0.1 to about 0.7% of a thickener, from about 1.5 to about 3.75% of an active antimicrobial agent, sufficient acid if necessary to adjust the pH in the range of 4.5 to 6.5, and adding water to 100%.

Abstract: An improved carburetor is provided wherein a bidirectional passage is provided between an air velocity reader and a location downstream of a throttle. Metered fuel flows into the bidirectional passage adjacent the air velocity reader. Flow direction in the bidirectional passage is dependent on the pressure relationship between the ends of the bidirectional passage.

Abstract: A building puzzle block includes an elongated body portion in the form of a rectangular parallelepipedon. Spheres are attached to the body portion along edges thereof and at spaced distances. An equal number of receiving sockets are formed at spaced distances. An equal number of receiving sockets are formed at spaced distances on the edges of the body portion for interconnecting the blocks with other similar blocks.

Abstract: An apparatus (20) for closing the end of a tube section includes a rotary means (180, 190) for rotating the tube section about the longitudinal axis of the tube section. A forming wheel (54) is mounted relative to the end of the tube section. The forming wheel (54) is freely rotatable about an axis substantially parallel to the rotational axis of the tube section. Structure (26) is provided for moving the forming wheel in a plane substantially perpendicular to the axis of rotation of the tube section and into engagement with the end of the tube section to close the end thereof.

Abstract: A press machine (10) having a slide (18) operable by a clutch controlled rotatable drive system (24, 26, 30, 34) is provided. The press (10) includes a sensor (42) interconnected into the drive system (34) for sensing the rotation of the drive system (34). A timer (64) is provided for generating an elapsed time signal representing the amount of time for the drive system (34) to rotate from a first angular position to a second angular position. Circuitry (64) is provided for comparing the elapsed time signal with a predetermined magnitude to thereby generate a signal representing the speed of the press (10). Circuitry (64) is further provided which is responsive to the speed signal for generating a control signal. The control signal is appolied to the clutch solenoid (40) for deactuating the clutch (24) to thereby enable stoppage of the press at a predetermined position at the top of the slide's (18) cycle.

Abstract: A door release mechanism (10) for a door (24) having a latch bolt (22) is provided. The door release mechanism (10) includes a strike block (12) adapted to receive the latch bolt (22). A ramped surface (26) is provided within the strike block (12) for urging the latch bolt (22) into the door (24) to thereby open the door (24). Structure (30, 42, 48) is further provided within strike block (12) for preventing the latch bolt (22) from being withdrawn within the door (24) for maintaining the door (24) closed.

Abstract: A method is provided for monitoring the receipt and stocking of batches of goods in a direct store delivery. A vendor enters a worksheet (22) via a wand scanner (12) where the vendor's information is stored in a computer (16). A store check-in sheet (32) is produced from the stored information. A receiving clerk audits the received goods and enters a clerk audit into the scanner (12). When the vendor and receiving clerk are satisfied with a store invoice (33) the goods are released from a location (34) for ultimate product stocking. Optional audits are provided by a management agent at a location (46) and by a security audit (50). These last audits can be entered via the scanner (12) to add to the information about the goods. Finally, management reports (64) are prepared which identify any discrepancies in the receipt and stocking of goods and indicate any trend for particular losses.

Abstract: An improved digestion chamber (10) is provided for use in a carbon analysis system. A catalyst (16), selected from the platinum metals group consisting of platinum, rhodium, palladium, osmium, iridium and ruthenium, provides an oxidizing surface for the sample being analyzed. The oxidant (26) is preferably persulfate, which may be stored in a generally stable solution until needed for sample oxidation. The catalyst (16) may be provided as a digestion chamber wire insert, such as a rod or as a plating on the chamber walls, enabling an increased variety of materials to be used for the vessel. In a preferred embodiment of the digestion chamber, polytetrafluoroethylene is used to reduce the background carbon which must be corrected in the analysis.

Abstract: A downhold chemical cutting process for cutting a target object within a well. A source of a gaseous chemical cutting agent comprising a nitrogen fluoride is introduced into the well adjacent the target object and employed in a cutting operation in which the nitrogen fluoride cutting agent is directed against the target to the cut. A gaseous cutting agent source such as a mixture of florine and nitrogen trifluoride may be employed. Alternatively a perfluoroammonium salt which decomposes upon heating to produce a mixture of florine and nitrogen fluoride may be employed. A cutting tool comprising pressure actuated anchoring means, pressure generating and chemical sections, and a cutting section having a downwardly extending nozzle. The nozzle is provided with a standoff sleeve to provide a desired distance between the target object to be cut within a well bore and the nozzle outlet.