Abstract: Flow valve seat grinding apparatus incorporating an improved steady rest means. Includes a tubular drive shaft housing which houses and supports a rotatable and longitudinally movable drive shaft means. Drive shaft is connected through a flexible torque coupler to drive a valve seat grinding head. Grinding head is adapted to grind a valve seat located within a valve body. Includes adjustable anchor operable to laterally extend at least three anchor members into fixed anchoring contact with a sidewall of a valve body to laterally support the shaft housing in fixed position within the valve body.

Abstract: A pipe weld repair structure adapted to seal leaks or cracks at a weld circumferentially disposed in a pipe. Includes at least two pipe clamp segments disposed around the pipe and connected together to form complete clamp. Each clamp segment defines two inner surfaces adapted to be in contact with outer surface of pipe when clamps are connected together around pipe. Each clamp segment defines an inner grooved recess disposed between inner surfaces and adapted to enclose a weld circumferentially disposed around pipe when clamps are connected together around pipe. Clamp segments define an internal diameter when clamp segments are connected to form complete clamp. Internal diameter is conventional fit around pipe while clamp segments are at sufficiently high temperature to cause thermal expansion. Internal diameter is a shrink fit around the surfaces of pipe after clamp segments are connected together while at sufficiently high temperature and subsequently allowed to cool to same temperature as pipe.

Abstract: A purse type seine readily operable by one person. Includes a woven purse seine, a rectangular support frame connected to the perimeter of the intake opening, and an elongated operating handle connected to the upper side of the frame at a selected angle permitting the person to manually operate the seine when walking behind the seine where the frame and purse opening remains ahead of the person with the bottom edge of the said frame extending slightly further ahead than the top edge of said frame. A flotation device is attached to the seine near the full depth of the purse and disposed to be on the top of the seine when the person is pushing the frame through water.

Abstract: A method and apparatus to kill pathogens with ozone and singlet oxygen. Includes steps of providing a reaction chamber, establishing an elevated electrical force field in the reaction chamber and moving a gas containing normal oxygen (O.sub.2) through the chamber to permit ionization and consequent reaction within the gas which converts the oxygen (O.sub.2) into constituents of ozone (O.sub.3) and singlet oxygen (O.sub.1). Next moves gas containing constituents into contact with pathogens to kill pathogens. Invention is applied to sterilize medical instruments and containers, and when applied to human skin surfaces, for treatment of pathogenic infestations.

Abstract: An animal skinning device including opposing sets of pointed skin grasping teeth mounted in teeth carrier members mounted at the ends of elongated jaw members. Jaw members are connected through a pivot to move from an open position into a forceful biting position. Handles are mounted at the ends of handle members with said handle members joined with said jaw members at pivot. Teeth and handles are spaced a selected distance apart by a stop means mounted between handle members. Points of teeth are formed to define a prescribed radius and teeth are mounted in carrier members a prescribed distance apart. Handles are formed as closed loops.

Abstract: A method and apparatus for use in a well drilling operation where drilling fluids are used and recycled. More particularly, it relates to novel method and apparatus for reclaiming valuable drilling fluids otherwise discarded with solids.

Abstract: An improved windrow yard rake useful for the raking of leaves, garden debris and the like. The rake has an adjustable drawbar to allow for the angling of the partially cylindrical main rake body so that the accumulated debris will circulate to the outermost end of the rake relative to the operator. The drawbar is also vertically adjustable in order to achieve a comfortable angle of approach to the operator. Wheels are attached to the top rear corner of the main rake body in such a way that if the rake is turned over on its top the rake is easily transported by rolling it on the wheels. Four pockets are provided on the rear of the rake to allow for weighted materials to be deposited in order to increase the overall weight of the rake itself. A lid is also provided to prevent loss of weighted materials upon transporting the rake via the wheels.

Abstract: A mud slurry cleaning method including steps of distributing a mud slurry across an inclined primary separation screen, vibrating the primary screen through selected movement, cycle and frequency to screen out the liquid and selected particles, concurrently changing the geometric shape of the openings of the primary screen through each vibration cycle to free particles as might tend to lodge while concurrently impacting the primary screen at many spaced apart impact points to loosen particles tending to lodge, cyclonically separating the screened mud into a finally cleaned slurry and a thickened slurry including particles originally included in the original slurry, mixing the thickened slurry with a portion of the screened slurry to form a liquified slurry, distributing the liquified slurry across an inclined gleaning screen, and vibrating the gleaning screen as above described to screen out liquid and desired particles while concurrently changing the geometric shape of the openings of the screen and concurre

Abstract: Apparatus for insulating enclosed electronic devices against damaging temperatures when used in deep, hot well bores. Includes a first vacuum chamber insulating means defined by outer casing of well-logging tool and inner casing. First vacuum chamber defines a components chamber to shield contents against the temperature in a well bore. A second vacuum chamber mounted within components chamber is defined by an outer tube and an inner tube. Outer tube has a thickened wall and is of material suited to serve as heat sink within components chamber. Second vacuum chamber defines detection chamber to shield contents against the temperature within components chamber. Thickened wall is undercut to define a thin wall adapted to function as a window for radiation to pass from an earth formation outside said logging tool into a radiation detector disposed within said detection chamber.

Abstract: A crush and abrasion resistant, sealed, impervious, flexible protective jacket assembly for oil and gas wells containing a plurality of electrical and/or fluid conductors that are oriented in linear, spaced, parallel relation. A pair of elongated protective metal sheets define elongated conductor grooves. The metal sheets are joined by welding to define a plurality of elongated chambers containing one or more of the conductors. The chambers are sealed from the atmosphere and may be filled with a non-gaseous dielectric material to prevent the development of corona discharge that might cause deterioration of the protective jacket assembly. The configuration of the sheets of protective material is such that the development of corona discharge is resisted. A pair of metal longitudinal structural elements are attached at opposed sides of the protective jacket assembly and prevent damage thereto by abrasion, crushing, bending, etc.

Abstract: An apparatus and method for the grinding and reconditioning of valve seats utilizing adjustable, rotatable satellite grinding wheels to change the diameter of the annular surface defined by the grinding action to match that of the valve, or the faying ring that is to be reconditioned. The satellite wheels are carried, in a freely rotatable manner, on the periphery of a planetary wheel and secured to slide blocks movable within doveways having radial slots for adjustment of the satellite wheels to vary the diameter. Through the utilization of slide blocks with angular faces in conjunction with rasp or file-type rotatable grinding wheels, the pitch of the satellite wheels can be changed, and excess material resulting from the grinding of the valve or faying ring can be cut away, thereby restoring the valve seating surface to the original widths prescribed by the manufacture. This combination also allows the user to change the angle of relief of the valve seating from an unknown to a known angle.

Abstract: A filter apparatus having a hollow, T-shaped body, the upper portion of the "T" defining a fluid flow path and the lower portion of the "T" defining a filter housing portion. A baffle plate is positioned in the "T" to direct fluid into a filter element retained within the filter housing portion of the housing. A first end of the filter element extends into an aperture in the baffle plate and is retained thereby. A second end of the filter element is coupled to a base, a portion of which extends externally to the housing. The externally extending portion of the base may contain data regarding the filter element. An aligning pin and alignment tab for such externally extending portion of said base may be provided to facilitate assembly of the filter apparatus.

Abstract: A method of and apparatus for sealing tubular conduits carrying one or more utility lines provided therein that do not totally displace the void is disclosed. The method and apparatus include spacing a plurality of dams along the axis of the conduit and defining a cell penetrated on opposite sides by the line or lines and thereafter pressuring the cell with a silicone or RTV rubber and exposing the cell to moisture sufficient to cause the resin to cure.

Abstract: An anti-theft nut for forward threading on a threaded member and having removal preventing means. The nut has a nut case with an axially extending skirt and two axially extending blind bores, and a bottom nut attached to the skirt to define and inner cavity. Two roll pins of different lengths are assembled within the axially extending bores. An internal nut having an engagement shoulder for engagment by the roll pins, and a bearing disposed between the internal nut and the bottom nut are assembled within the nut cavity. The longer of the roll pins extends from its bore in the nut case to engage the shoulder of the internal nut to effect the forward threading of the anti-theft nut. Unthreading of the anti-theft nut is prevented due to jamming between the bottom nut, through the bearing, with the internal nut prior to possible engagement of the longer roll pin with the opposite side of the shoulder of the internal nut.

Abstract: This invention relates generally to an apparatus for boarding or leaving an offshore structure or ship safely. More particularly, the invention relates to a swing beam and flexible ladder to replace the current method for boarding an offshore structure.

Abstract: A flashing member having a two leg construction, such member being adapted for use between the ends of corrugated roof panels adjacent to the open space below ridge type ventilators and the base of the ventilator in its resting position at the ridge of a building roof. The flashing member has a generally V-shape transverse profile, and includes one leg having corrugations formed thereupon to correspond with the surface of the corrugations of the roof panel, and a second leg interval with the corrugated leg, such leg being angularly disposed with respect to the corrugated leg and formed with a substantially smooth, flat and uncorrugated surface adapted to provide bearing support for the ventilator in its resting position. A watertight seal is then disposed between the ventilator and the roof panels.

Abstract: Method and apparatus for treating sewage to reduce total solids content. Involves separating sewage sludge from sewage liquid, dewatering and compressing the sludge, subjecting the sludge to microwave radiation to reduce sludge to ash-like residue, and adding the residue back to the sewage liquid. Optionally, to sterilize the sludge liquid with chemicals or ultraviolet light.

Abstract: An improved refrigerator door structure, the mounting frame and door thereof being fabricated of fiberglass, fiberglass reinforced thermoplastic, or other lightweight material. An innermost and an outermost glass pane are sealably mounted within the door frame to enclose one or more sheets of heat reflective transparent plastic material space parallel to and laterally from the panes and sealably attached to the frame so as to prevent flow of air past any of the plastic sheets or glass panes. The heat reflective plastic surface serves as a barrier to our flow and also serves as a barrier to radiated heat.

Abstract: A joint for interconnecting a pair of pipes having two-step Hydril-type connection means disposed thereupon. A secondary sealing means is disposed on the pin member connection means within a thread groove which forms part of the seal housing along with pin and box member torque shoulders.

Abstract: A leak repair clamp for pipe and pipe flanges includes a frame having a plurality of one piece frame segments positionable in end-to-end relationship around the pipe. Each segment includes a pair of spaced apart metal lips which are adapted to form a metal-to-metal seal with a pipe or flanges when the frame segments are connected together. Access means are provided in each frame segment to permit the passes of liquid sealant into the recess defined by the lips and the pipe.