Abstract: A pipe cleaning assembly includes a main shaft defining an inner bore aligned along a first axis, the inner bore being able to couple in fluid communication with coiled tubing. A slide shaft is disposed around the main shaft, the slide shaft having a forward end, a rear end, and a plurality of fluid pathways. Each of the fluid pathways is in fluid communication between the forward end of the slide shaft and the read end of the slide shaft. Each of the fluid pathways has a forward end able to direct fluid toward an inner surface of a pipe. The slide shaft is able to slide along the main shaft between a first position and a second position, in the direction of the first axis. The first position permits fluid flow through the plurality of fluid pathways, from the rear end of the slide shaft to the forward end of the slide shaft. The second position restricts fluid flow through the plurality of fluid pathways, from the forward end of the slide shaft to the rear end of the slide shaft.

Abstract: A composition comprising at least one carbonate compound and at least one acid compound which yields carbon dioxide gas in the presence of a sufficient amount of water is disclosed. Also disclosed are methods for producing carbon dioxide gas and exterminating subterranean burrowing, air-breathing pests and methods for providing nutrition to plants and soil.

Abstract: A process for treating animal manure, particularly poultry feces, with concentrated sulfuric acid (about 93 to 95% H2SO4). The product of the process can be used for treating agricultural soils.

Abstract: Soil fertilizing and soil improving products may be made by a process which comprises admixing a pulverized waste copper slag with concentrated sulfuric acid having a strength of about 93.17% by weight in the total absence of added water whereby the resulting slag-acid composition reacts to form a dry granular product.

Abstract: A process for increasing the water solubility of gypsum in which gypsum is ground to about 5 to 50 mesh U.S. Standard Sieve Size, about 5 to 95 parts by weight of ground gypsum are mixed with about 2 to 25 parts by weight concentrated sulfuric acid having a concentration of about 93 to 98.5% H.sub.2 SO.sub.4, optionally in the presence of about 5 to 20 parts by weight water, and the resulting product is dried at a temperature of about 100-125.degree. C. to form a water-soluble, granular, solid, free-flowing gypsum product having a water solubility increased by about 2- to greater than 350-fold.

Abstract: A process for the removal of oxides or hydrated oxides of carbon or sulfur from an acid waste gas stream in which a bed of moist particulated solid waste material is formed, the bed particles are coated with alkaline earth oxides or alkaline earth carbonates and a catalyst to promote the reaction of the oxides or hydrated oxides of carbon or sulfur with the alkaline earth oxides or alkaline earth carbonates in the presence of the moisture and in which the bed is contacted with the waste gas stream whereby the oxides or hydrated oxides or carbon or sulfur react with the alkaline earth oxides or alkaline earth carbonates in the presence of the moisture and are absorbed on the bed particles. The bed particles resulting from the process may be used as agricultural soil amendments alone or in combination with fertilizers and the like.

Abstract: A process for treating wood, particularly wood wastes (such as sawdust and the like), and/or paper, particularly waste paper (such as newsprint), and/or other types of polysaccharides (matter composed essentially of cellulose and lignin), preferably available as "wastes", with concentrated sulfuric acid (93 to 98.5% H.sub.2 SO.sub.4), or with concentrated phosphoric acid (75 to 85% H.sub.3 PO.sub.4), or various mixtures of these acids in their concentrated forms. The product of the process can be used for treating agricultural soils or as a landfill.

Abstract: The formation of paramagnetic iron sulfate hydrate salts containing iron in the di- and trivalent states from black magnetic iron oxides of high iron content and their use as fertilizers effective on both acid and alkaline soils is disclosed. Such oxides are comminuted, wetted with a specified amount of water, reacted with concentrated sulfuric acid, and dried. The resultant products are paramagnetic and contain iron in both the di- and trivalent states. These products have fertilizing and soil conditioning properties superior to non-magnetic iron compounds containing iron only in either the di- or trivalent state.

Abstract: A Bourdon tube and its method of manufacture comprised of a displaceable portion having an arcuate extent of between 170 degrees and 190 degrees, with a controlled size opening contained in the edge face of each end. Secured pressure tight in one end opening is a capillary forming the non-displacement portion of the Bourdon tube, while secured pressure tight in the other end is a seal plug forming the tube tip of the Bourdon tube.

Abstract: The floating amplifier of a pressure gauge is mounted onto the free end of the Bourdon tube at various effective spacings therefrom correlated to offset any residual tip travel of the individual Bourdon tube.