Abstract: Disclosed is a security device which includes a cylindrical externally threaded member having formed therein a radial first hole and a threaded second hole formed coaxially with the threaded member and intersecting the first hole. A bar is insertable into the first hole to extend radially outwardly therefrom. The bar includes a notch which is alignable with the second hole when the bar is inserted into the first hole. The device includes a sleeve having a first internal portion engageable with the externally threaded member and a second internal portion. The sleeve is engageable with the bar for preventing rotation of the sleeve with respect to the threaded member. The device includes a key operable pick-resistant lock that includes a lock body that is non-rotatably engageable with the second internal portion of the sleeve and a key operable screw that is threadably engageable with the second hole to engage the notch and prevent the bar from being removed from the threaded member.

Abstract: A boxing device that fights back is disclosed which comprises a coupling suspendable from rigid upper supporting structure, a resilient boxing bag suspended from the coupling and attachable to rigid lower supporting structure, and a pair of arms with their upper ends attached to the coupling and their lower ends free to swing arcutately forward and upward towards an attacker in response to the attacker's blows upon the resilient boxing bag. A second resilient boxing bag, also attachable to the rigid lower supporting structure, may be suspended below the first bag.

Abstract: Methods and means are disclosed for the monitoring of conditions in a mud circulation system as used in the drilling of oil and gas wells, and to quickly detect and indicate pressure failures that may occur in that system to thereby allow for the maximum time and opportunity for remedial action.

Abstract: A pipe thread protector is provided which includes two members, one slidably constrained within the other. The interior member has a guide section which includes internal ridges adapted to engage the threads of a pipe section. When placed in one position within the outer member, this upper section is expanded to allow insertion over the end of a pipe. The resistance of the pipe section pushes the interior member further into the second member to assume a second position whereby the guide section is radially contracted. This places the ridges in sealing engagement with the threads of the pipe. Simultaneously, air is forced out from between the interior and exterior members through a valve in the base of the outer member so that a partial vacuum is formed between the inner and outer members. Surrounding air pressure secures the interior member in its second position and the pipe thread protector mounted on the pipe.

Abstract: A method of inhibiting the occurrence of differential wall sticking in the rotary drilling of hydrocarbon wells is provided. The yield point of the drilling fluid is measured and if necessary increased in a known manner to a minimum value computed from the weight of the drilling fluid so that solid, substantially spherical glass beads having a specific gravity between 2.4 and 2.65, a diameter between 9.84 and 187 mils, and a hardness of 5.5 Mohs placed therein will not settle, and 10 to 50 ppg of the glass beads are added to a quantity of the drilling fluid. A slug of the glass beads/drilling fluid mixture is then spotted in the well bore adjacent a previously identified zone of possible sticking, so that a substantial number of the glass beads may be deposited in the filter cake lining the well bore adjacent the zone of possible sticking.

Abstract: A method and means for pulling a sucker rod string from a well is disclosed. A separable connector is provided in the sucker rod string above the pump body. The connector comprises a male and a female section having aligned openings and joined by a shear pin within said openings. The force required to shear the pin and separate the sections of the connector is substantially greater than that required for normal operation of a downhole reciprocating pump or similar tool but is substantially less than the weight of the fluid column above the downhole reciprocating pump. The disclosed methods include insertion of this connector into a sucker rod string, such as one including fiberglass sucker rods, above the pump. The pump is then operated in the normal known fashion. To remove the sucker rod string, tension in the string is increased above that required to operate the pump until the pin within the connection shears, separating the sucker rod string from the pump.

Abstract: An improved apparatus is disclosed for simultaneously electrically selecting an array of punches for forming holes in paper suitable for engagement with loose leaf binders or the like. The punches are electrically activated and are mounted in a housing and include a switch mounted on the housing whereby the insertion of paper into the housing will automatically activate the punches which simultaneously form holes in the paper. A corresponding set of indicator lights may be mounted on the housing to signal which punches have been selected.

Abstract: A pilot valve is disclosed having a piston actuating a valve element shiftable between a first and second positions. The piston is comprised of two concentrically arranged pistons, the larger piston having an internal bore with two sections of staggered diameters and a smaller, correspondingly shaped second piston inserted in the concentric internal bore. A single O-ring on the bottom of the second section of the first piston annularly mounted around the second section of the second piston seals the piston chamber from a fluctuating sensed fluid pressure. The first piston has a longer upper bore section than the second piston. A spacer is placed at the juncture of the first and second sections of second piston so as to enable the first and second piston to act in unison in actuating the valve element. In this mode, the effective surface area of the piston is equal to the diameter of the larger piston or of the O-ring.

Abstract: An office furniture system is disclosed that provides an unlimited variety of assembly configurations from basic component parts. To meet changing needs, configurations such as desks, drafting tables, cubicles, stands, shelves, may be easily disassembled and reassembled into configurations more suited to current needs. Rectangular panels are positioned such that the edges of some panels fit into grooves in the side of other panels and are held firmly together by a unique bolting system.

Abstract: An apparatus for aligning and loading inserts for soil erosion prevention blocks having a rollable main frame with an insert holder frame movably coupled thereto. Secured within the insert holder frame is an aligning frame which receives the inserts and aligns them in the desired manner. The inserts are supported within the insert holder frame by a plurality of hooks affixed to movable rods, such rods preferably tied together such that the rods may be moved simultaneously, causing the hooks to release the inserts uniformly.

Abstract: Disclosed is a fish food or bait and a method of manufacturing same. The food or bait includes an edible porous member such as a dried ear of corn saturated with a fish attractant or nutrient. The dried ear of corn includes a cavity filled with an edible solid and it may be covered with an edible solid. The dried ear of corn may further be covered with a sealant.

Abstract: A power operated cleaner for large pipe threads is disclosed that includes a lightweight portable unit connected by flexible lines to power sources and to storage tanks. Both mechanical and chemical cleaning means are provided together with means to recover spent cleaning fluid and matter removed from the pipe ends, so as to protect the environment. Controls are located on the portable unit for both safety and operating efficiency.

Abstract: Pipe, bar stock, or other tubular member handling apparatus according to this invention includes means for elevating a section of pipe from a horizontal pipe rack, moving the pipe linearly into operative relation with a machine that rotates the pipe and does work such as machining threads at the end of the pipe, supporting the pipe for rotation during machining operations, moving the pipe linearly in the opposite direction after machining operations have been completed and then lowering the pipe back onto the pipe rack. The machine incorporates operation and control circuitry correlating certain pipe control movements and facilitating pipe handling with minimum control selection by operating personnel and minimizing handling time.

Abstract: A method for locating gas-lift valves in properly spaced manner within a string of production tubing extending to a production zone within a well. During calculations for valve spacing and set pressures, the spacing and reopening pressures of the valves are corrected to the lowest temperature that is expected to be encountered at any valve while lifting from the next lower valve of the gas-lift valve and piping system. An average between the flowing temperature corresponding to the rate to be produced from the next deepest valve and the geothermal temperature gradient are employed to calculate the reopening pressure of any given valve.

Abstract: The present disclosure is directed to a sewage disposal system having a central aeration chamber flanked on each side by a pair of biological filters each containing tiers of buoyant plastic hollow spheres through and over which the liquid from the aeration chamber flows upwardly and the filters are connected at the top by a crossover pipe positioned below the top level of sludge in the aeration chamber. The crossover pipe communicates with a vertical riser which functions with a vertical antisyphon vent. The riser communicates with a flexible hose which connects the primary central aeration chamber with the chlorine contact tank to receive the sludge from the biological filters for chlorinating the liquid and providing an adequate retention time for disinfection prior to discharge overboard.

Abstract: A mobile, self-contained, self-powered three stage apparatus is disclosed for separating solids from a liquid. Three stack separator pods are mounted over a housing on a mobile platform. A plurality of hydrocyclones are readily mounted with respect to the separator pods to provide for separating the solidds therewithin. Each successive separator pod contains a greater number of smaller diameter hydrocyclone so as to enable the separation of smaller diameter of particles. Each separator pod also includes degassing capabilities. A plurality of holding tanks act as reservoirs for the fluid and solid mixture prior to and subsequent to each separator pod. A system of internal weirs allows overflow of liquids from a holding tank containing cleaner mixture to a holding tank containing a greater proportion of solids, whereby liquid equilibrium is maintained within the system.

Abstract: Disclosed is a nonpolluting drilling fluid composition. The composition mixture consisting essentially of a concentrate and any nonpolluting oil. The concentrate consists essentially of diethanolamide, a fatty acid, and a imidazoline/amide mixture.

Abstract: A power energized mechanism for connecting and disconnecting pipe connections and the like comprising a housing structure having interconnected therewith a rotatable drive gear that is rotated by means of a suitable motor. A pair of spaced external ring gear elements are interconnected with the rotary drive gear with the external gear teeth thereof disposed in interengaging relation with opposed pinion gears provided on a plurality of cam elements that are positioned in spaced relation about the ring gears. Each of the cam elements incorporates an intermediate cam section having defined thereon a pair of cam surfaces that are adapted respectively to engage pipe that is positioned within the receptacle defined by the cooperating gear and cam mechanisms.