Abstract: A spray rinsing apparatus carried by a mobile chemical spray apparatus which includes a pair of flexible rinse water storage vessels shaped and adapted to be supported in draped position from the top of a chemical reservoir tank and the sides of the tank. A gasoline engine driven pump is connected to withdraw rinse water from the flexible vessels. The rinse water is pumped at high pressure into a built-in spray head assembly inside the chemical tank and also through a jet spray gun to clean the exterior of the chemical spray apparatus. The system is capable of confining the chemical spray chemicals to the application job site and thus avoid contamination anywhere else.

Abstract: A disposable hypodermic syringe adapted to be easily disabled against re-use or flesh pricking. Has an outer barrel, an inner reservoir body fitted within the barrel, a needle support member connected to the reservoir body, a hypodermic needle mounted in the support body, and an elastic member mounted in stressed condition between the needle support member and the barrel member for expanding and moving the needle into the barrel member when the elastic member is released. The reservoir body is separated from the needle support member by applying torque between the barrel member and the reservoir body to part a plurality of web linkages and permit the spring to expand and push the needle support member and hypodermic needle to within the reservoir body.

Abstract: Discloses an improved tool and method for cutting material by expelling a jet stream of liquid chemical reactant into forceful flowing connection and chemical reaction with a designated area of the material. Applies a continuing force to a designated first stage mass of reactant to move the first mass through a designated linear distance to accelerate the first mass and thereby provide the first mass with kinetic energy. Causes the first mass to encounter and join with a second stage mass of chemical reactant to form an aggregate mass with the aggregate mass then moving at a velocity attained by the kinetic energy of the first mass, as applied to the aggregate mass, and at a rate of acceleration generated by the continued application of said force to the aggregate mass. Passes the aggregate mass through a medium adpated to heat the said aggregate reactant mass to a substantially elevated temperature.

Abstract: A well conduit caliper tool which simultaneously measures the remaining wall thickness of a well conduit in situ and the minimum inside diameter of such conduit. A caliper feeler arm element which extends out the furthermost distance from the caliper tool activates a sensing element that produces the indication of remaining conduit wall thickness. Another caliper feeler arm element which extends out the least distance from the caliper tool activates another sensing element that produces the indication of the minimum inside diameter. At the earth's surface these indications are recorded on a continuous strip chart or log as the variation of such respective diameters through the interval of conduit measured by the caliper tool. Mechanical linkage wear compensation and linear mechanical movement through the linkage between the feeler arm elements and the sensing elements are provided.

Abstract: A tool for testing earth formations in bore-holes provides a failsafe function for retracting the sealing pad of the formation isolation device, in the form of elements operable in response to failure of down-hole power supply for the tool to effect release of hydraulic setting pressure on the seal pad. The tool further provides a formation mini-sample chamber of variable volume with elements permitting aboveground monitoring and control of same independently of any other tool function. The mini-sample chamber control device also controls the operation of a formation fluid sample flow line valve. The tool is divided into upper and lower pivotable sections to alleviate the problem of becoming differentially stuck. A unique pivot structure incorporating sample chamber seal valve assembly, is provided. A unique sand screen device is provided to permit the tool to function when working with unconsolidated formations.

Abstract: A lading support carrier for handling packaged goods in conjunction with an overhead conveyor, such as a monorail conveyor. Includes a support member suspendable in generally upright position from the conveyor and spaced apart, generally outstanding bars hingeable and detachably connected thereto to receive the goods such as package goods to be moved. Provision is made for suspending the support rack for movement along an overhead conveyor. The outstanding bars may be selectively hinged in aligned relation with respect to the upright support member to vary the space between any two extending support bars to accomodate larger packages or goods. All outwardly extending support bars may be hinged for greater convenience in handling and/or shipping. Where used in a food processing plant, the outstanding bars may be readily removed for sterilization and quickly replaced. The material from which the unit is made may be provided of substantially corrosion proof and impermeable material.

Abstract: A formation tester apparatus for use in a well bore for multiple testing of pressures of earth formation fluids and the taking of a fluid sample, including pad and shoe elements selectively operable for sealingly engaging a well bore. Upon sealing engagement of the pad element with the wall of a well bore, a fluid sample is ingested into an expanding chamber while its pressure is sensed. Upon completion of the pressure test, the pad element is retracted from the wall of a well bore, and the expanding chamber contracts to expel the fluid sample. The pressure test may be repeated any number of times. The expanding chamber includes a piston operated with fluid pressure used to actuate the pad element. A choke delays the application of pressure to the piston until after the pad element seals on the wall of the well bore.

Abstract: Improved apparatus and methods are provided for conducting drill stem and production testing operations. A bypass sub removably receives a wireline tool in sealing engagement within a bypass sub bore, with the bypass sub including bypass passage means and selectively actuable port closure means to permit fluid from below the bypass sub to flow into conduit means above the bypass sub when the wireline tool is seated and secured in the bypass sub. In one embodiment, the means for selectively actuating the port closure means is a motorized shifter means incorporated in the wireline tool. The wireline tool carries selected sensor devices for sensing earth formation characteristics. Improved and unique means are provided for securing the wireline tool in the bypass sub and for selectively engaging the motorized shifter apparatus with the port closure means.

Abstract: Improved end closures for shaped charge unit chambers in borehole perforating tools have flanged peripheral portions to be clamped in the threaded joint when sidewalls of adjacent chambers are threadedly joined. Also disclosed are sealing means for conductor wires passing through the end closures, which sealing means involves means for compressing and deforming the conductor insulation so that the conductors with their insulation sealingly occupy a predetermined space between surfaces of cooperating compressing and deforming means.

Abstract: Improved apparatus and methods are provided for conducting drill stem and production testing operations. A bypass sub removably receives a wireline tool in sealing engagement within a bypass sub bore, with the bypass sub including bypass passage means and selectively actuable port closure means to permit fluid from below the bypass sub to flow into conduit means above the bypass sub when the wireline tool is seated and secured in the bypass sub. In one embodiment, the means for selectively actuating the port closure means is a motorized shifter means incorporated in the wireline tool. The wireline tool carries selected sensor devices for sensing earth formation characteristics. Improved and unique means are provided for securing the wireline tool in the bypass sub and for selectively engaging the motorized shifter apparatus with the port closure means.

Abstract: Logging while drilling apparatus included in a rotatable drilling string of drill pipe disposed in a well bore. Apparatus generally includes a combination communication system comprising two communication channels coacting in cascade or tandem fashion with a first lower communication channel having very low attenuation characteristics but being relatively inconvenient to connect or disconnect and with a second upper communication channel having greater attenuation characteristics but being very convenient to connect or disconnect when adding drill pipe as drilling continues. Electrical power for the entire combination in the well bore is provided from a location remote from the bottom of the well. Also discloses related methods of logging while drilling.

Abstract: A support rack for handling packaged goods in conjunction with an overhead conveyor, such as a suspended monorail conveyor. An upright member has spaced apart, outstanding bars hingeable and detachably connected thereto to receive the goods to be moved, preferably packaged goods. Provision is made for attaching the entire unit to an overhead conveyor. The outstanding bars may be selectively hinged upward in the same plane and in aligned relation with respect to the upright support member to vary the space between the normally outwardly extending support bars to accommodate larger packages or goods of greater size, or all outwardly extending support bars may be hinged upwardly for greater convenience in handling and/or shipping. If used in a food processing plant, the outstanding bars may be readily removed for sterilization and quickly replaced. The material from which the unit is made may be rust proof metal, metal treated against rust or metal coated to prevent rust.

Abstract: Apparatus for forming a composite article including an inflatable center adapted to retain a predetermined shape covered with a covering of molded material and preferably an inflatable composite article such as a game ball with a covering of more uniform thickness. Surfaces of complementary elements of a mold are adapted to define, when the mold is closed, a molding cavity corresponding to the outer surface of a desired composite article. Said surfaces are electrostatically sprayed with a molding material to form a layer of molding material over said surfaces. Preferably, electrostatic spraying is performed while heating the mold preferably to a temperature above 135.degree.C. and most desirably between 150.degree. and 190.degree.C. An inflatable center is then inserted into the mold and the mold is closed to define the molding cavity with the inflatable center therein.

Abstract: An apparatus and method are disclosed for removing unreacted monomer and other volatile material from an aqueous dispersion of polymeric substance. An aqueous dispersion containing volatile material to be stripped is injected into a substantially unrestricted contacting tube along with a stripping gas such as steam to provide within the contacting tube a high velocity vaporous mixture of aqueous dispersion and stripping gas. The vaporous mixture is maintained under a pressure above atmospheric and preferably greater than 5 psi gauge within the contacting tube a time sufficient to permit absorption of volatiles from the dispersion to the stripping gas and preferably to permit saturation equilibrium to be approached. The vaporous mixture is discharged from the contacting tube through a nozzle into a substantially unrestricted post-contacting tube, which is maintained below atmospheric pressure, and preferably is impinged against a baffle means.