Abstract: A thread form is shown which is used to make a threaded pipe connection capable of being screwed together and subsequently unscrewed. A pin member is provided having external threads with stab flanks and load flanks and flat crests and roots for mating with the mating internal threads of a box member to make up a pipe connection. One of the stab or load flanks is made up of two facets and three radii. The other selected flank is made up of three facets and four radii, giving it irregular features forming a complex geometric profiles. The thread form can be used to form a premium threaded connection which is used with such tubulars as casing and tubing for oil, gas, water and waste disposal wells.

Abstract: A method is shown for raising the pH of a cyanide leach solution of the type used in a heap leaching mining operation. Lime slurry is mixed with a side stream of barren cyanide solution in a reactor vessel in order to remove carbonate hardness, to regenerate the hydroxide alkalinity and to raise the pH of the resulting recausticized leach solution. A portion of the calcium carbonate precipitate formed in the reactor vessel is retained in order to encourage further crystal growth. Overflow from the reactor vessel passes through one or more cyclone separation stages in order to remove particulate solids. A cyclone overflow stream is directed back to the process to upwardly adjust the pH of the bulk of the barren cyanide solution. A cyclone underflow stream is directed back to the reactor vessel to provide seed crystal nuclei for precipitate growth.

Abstract: A method is shown for retarding the reactivity of quicklime. The quicklime is contacted with an aqueous solution of a boron-containing compound after being calcined. The boron-containing solution can be sprayed on the quicklime as it moves past on a conveyor belt. The retarded quicklime can be used for various industrial purposes and is especially useful as a reactant in a glass making operation.

Abstract: An improved shell-and-tube steam instantaneous heat exchange system of a closely coupled feedback design which overheats water in the heat exchanger portion of the system and then blends the water, as needed, with proportional amounts of cold water to achieve the correct outlet temperature for a wide range of flow rates. The system uses at least two primary heat exchangers to provide redundancy in the case of failure of a major component of the system. Steam flow through the heat exchangers is controlled by the use of steam traps, rather than using a thermostatically controlled valve to vary the supply of steam. To obtain precise temperature control during varying water volume use, water is directed from the blended outlet of a first water tempering valve into the hot inlet port of a second water tempering valve.

Abstract: The invention concerns a method for dehydrating sludge, comprising adding a basic agent to sludge having a pH not more than 8, adding to the sludge at least one organic flocculating constituent, by adding said basic agent, increasing the sludge pH to a value not more than a pH at which occurs degradation of said at least one organic constituent, flocculating the sludge and separating in the flocculated sludge dehydrated sludge from a liquid phase, said basic agent being a magnesian limestone compound of formula xCaCO3,(1?x)[yMg(OH)2+(1?Y) MgO], wherein 0,45:=x=0,75, and 0=y=, the treated sludge having, until after said separation, said value less than a pH at which occurs degradation of said at least one organic constituent.

Abstract: A portable extractor apparatus is shown which includes a wheel mounted base having a solution tank for dispensing and recovering cleaning solution. A cleaning head communicates with the solution tank and contacts the surface to the cleaned for dispensing and recovering cleaning solution. A fluid pump circulates cleaning solution in a path between the solution tank and the cleaning head. A vacuum motor provides a vacuum source for the cleaning head for suctioning the surface being cleaned. The solution tank has mounted thereon both an initial multi-component filter assembly which initially filters incoming solution being circulated to the solution tank and a distinct final filter component which removes smaller particles from the solution being re-circulated from the tank. The solution tank bottom wall has a profile which improves the efficiency of the final filter component.

Abstract: A method and apparatus for restraining pipe against internal forces at a pipe or fitting connection and to join and seal at least two pipes to form a pipeline is shown featuring an improved restraining/sealing mechanism. The restraining/sealing mechanism includes a relatively rigid gripper ring and a companion sealing ring which are received within one or more mating grooves provided in the belled end of a female pipe. The gripper ring and sealing ring can be combined or attached, or they can be separate members located in the same retaining groove or separate grooves in the female belled pipe end.

Abstract: A system is shown for locating hidden pipelines, particularly underground pipe used in a plastic pipeline such as for municipal water and sewer applications. An RFID tag is associated with the pipeline prior to installation of the pipeline into the ground. This can be done by associating the RFID tag with a sealing gasket which is subsequently installed at a sealing joint location of the pipeline. The tag can also be associated with the pipeline itself by installing the tag on a section of pipe. The location of the subsequently buried pipeline can be determined by interrogating the RFID tag with a suitable reader, the reader being located at an above ground location.

Abstract: A tool storage bag is provided for storing tools and accessories at a work site. The tool storage bag is formed with soft sides and has external expandible pockets to accept a variety of tools and accessories. In one version, the bag has an A-frame opening which presents an unobstructed opening in the open position for receiving larger tools such as a circular saw. In another version, the tool bag has a rectangular opening which is spanned by a rigid handle with end portions which are attached to selected opposing sidewalls of the bag. The rigid handle accommodates heavier loads and adds increased stability to the bag construction.

Abstract: A tamper-evident band is provided which includes a pull tab which is more easily located and more easily grasped by a consumer for removing the tamper-evident band from a container. A method is also disclosed for applying a heat-shrinkable band to a container such that the band is correctly conformed to the configuration of the container with the pull tab properly located for ease of identification and ease of removal.

Abstract: A thread form is shown which is used to make a threaded pipe connection capable of being screwed together and subsequently unscrewed. A pin is provided having external threads with stab flanks and load flanks and flat crests and roots for mating with the mating internal threads of a box to make up a pipe connection. The stab flanks and load flanks form complex geometric profiles which in one version form an inclined Z-shape in profile and in another version form a reverse inclined Z-shape profile. Each profile includes at least three separate facets with the facets on the stab flank and the facets on the load flank both leaning in the same direction with respect to the longitudinal axis of the pipe, when viewed in profile.

Abstract: A method for reducing heavy metals, in particular in mercury, present in flue gases, includes the step of bringing the flue gases into contact with a particular class of sorbent material in the dry state. A preferred class of dry sorbent materials can be provided from a mineral compound selected from among halloysites and phyllosilicates of the palygorskite subgroup and the sepiolite subgroup of the palygorskite-sepiolite group according to the Dana classification. Mineral compounds of this group have been shown to provide a reduction in heavy metals, in particular in mercury, present in flue gases.

Abstract: A universal eave mount is shown which is capable of mounting a satellite dish antenna on a structure with a sidewall and a roof with an eave. A base bar, with an initially open interior, attaches to a base plate designed to attach to the sidewall of the structure. An elbow shaped primary dish support, including a generally cylindrical upright leg connected to a generally horizontal leg, is provided. The horizontal leg of the elbow shaped primary dish support is sized to be telescopically inserted into the base bar. A threaded anchor element anchors the elbow shaped primary dish support to the eave of the structure in order to provide a sturdy location to mount a satellite dish antenna on the elbow shaped primary dish support.

Abstract: A well cover arrangement is shown for covering the exposed opening of a well where the well has a submersible pump supported on a collared well string which is suspended downwardly in the well. The cover arrangement includes both a U-plate with a U-shaped opening therein and a door element which fits within the U-plate opening. Once the door element is properly positioned on the U-plate, cooperating locking elements maintain its proper position. The ultimate weight of the well tubing string further secures the door element as the collar in the well string contacts a portion of the door element, making removal of the door element only possible by first lifting the well string.

Abstract: An apparatus for restraining pipe against both internal and external forces at a pipe or fitting connection and to join and seal at least two pipes to form a pipeline featuring an improved restraining and sealing mechanism. The restraining and sealing mechanism includes a circumferential housing and a companion sealing ring which are received within a mating groove provided in the belled end of a female pipe. The circumferential housing has an interior region which contains a gripping ring insert. The sealing ring and housing are integrally located within a belled pipe end during belling operations.

Abstract: The present invention relates generally to a cotton stripper row unit for attachment to the front of a mobile harvester chassis for movement through a field with rows of cotton plants spaced at predetermined intervals. The cotton stripper row unit has a primary frame capable of attachment to the front of the mobile harvester chassis. A series of planar dividing walls extend perpendicularly outward from the front of the primary frame. A cotton row receiving mechanism is located between two planar dividing walls, and each adjacent cotton row receiving mechanism shares at least one common planar dividing wall. The separate cotton receiving mechanisms are capable of receiving a row of cotton plants upon movement through the field, and each cotton row receiving mechanism is made up of only one auger and two brush rolls.

Abstract: The collection bag of the invention is used to capture body fluids/waste material throughout the complete process as an enema is being administered, eliminating contamination of the patient, bed, linens, and floor as well as the caregiver and others that administer the enema. This bag can be administered to patients that are recovering from bariatric surgery, are in a long term care facility, hospital, home, or special unit caring for spinal cord injuries, or head injuries. It can be used with patients who are in a comatose condition whereby hip flexion, weight bearing, or transferring to a bedside commode is impossible. This collection bag captures waste for laboratory testing and other lab work and is marked with warning indicia. The bag fits any age patient, male or female.