Abstract: A mandrel for use in a well tubing has a body with a bore extending therethrough for alignment with the well tubing with a valve pocket offset from the mandrel bore for receiving a valve or other tool therein and guard and guide means for particular configuration are formed at the upper end of said pocket to restrict access thereto and includes projection means to assist in retaining valves in position in the valve pocket.

Abstract: A T connection including a body and a pair of aligned laterally extending projections form fluid passage means. An annular flange is formed on one of the lateral projections internally thereof and a flange is formed on the other lateral projection externally. A hollow annular filter member is positioned in the lateral projections and abuts the internal flange at one end and is closed off at the other end by the external flange on the other lateral projection. The filter member includes a core formed of generally trapezoidal or triangular shaped metal wire or strip material which has in the trapezoidal form two parallel surfaces joined by converging side surfaces. The strip material is either helically wound to form coils or formed by a plurality of rings which are longitudinally spaced a predetermined amount and a plurality of circumferentially spaced reinforcing ribs are secured to the periphery of the core.

Abstract: A longitudinally extending body is provided with a longitudinally extending slot or opening. A hollow tubular member is secured adjacent one end of the body and is provided with a slot across its end which coincides with the slot in the body. Reed means are secured at one end to the body and extend longitudinally of the slot in the body and the tubular member, with the reed means having a portion extending laterally therefrom adjacent the hollow tubular member for manual vibration of said reed means relative to said body and member. The other end of the hollow tubular member is open to be positioned adjacent the mouth of the user for providing desired notes and tonal effects when the reed is manually vibrated. Clamp means on the body are movable longitudinally therealong for engagement with the reed at a predetermined or selected position to vary the length of the reed and thereby the pitch of the notes created by the vibration of the reed means.

Abstract: A tubular member or mandrel is provided with an outer housing and a cone shaped enlargement. Segmented cone means is slidably supported on the mandrel between the mandrel and the outer housing and the mandrel includes a portion spaced radially therefrom to define an annular cylinder with the outer housing having a piston portion sealably fitting within the annular cylinder. Slip segments are provided on the outer housing.

Abstract: A housing with a mandrel therein is adapted to be connected in a rotary drill string. The housing and mandrel are constructed and arranged to support the work load of the rotary drill string as well as dissipate both longitudinal and radial impact or shock loads that the drill string may encounter. The construction also includes means whereby radial impacts applied to the drilling assembly are connected or translated into longitudinal components of force so that various combinations of longitudinal and/or radial impact or shock loading of the drill string may be dissipated in a manner to inhibit damage to the drill string and its components.

Abstract: A shock absorbing arrangement for marine structures includes an annular elongated hollow body with an elastomer body molded adjacent one end of the annular body, the elastomer body having a plurality of circumferentially spaced voids therein extending from one end of the body and terminating in spaced relation relative to the other end of the body. A cylinder is molded in the center of the body and has an open end facing in the same direction as the open end of the voids and a closed end adjacent but spaced from the other end of the elastomer body and the elastomer body is provided with an enlargement adjacent the closed cylinder end to serve as a shock absorber and bumper.

Abstract: A tubular mandrel is provided with outer housing means slidable thereon. Slip segments are formed on the outer housing means and a cone shaped enlargement is formed on the mandrel. Segmented cone means is slidably mounted on the mandrel between the mandrel and outer housing means. Cooperating latch means including a J-shaped slot in the outer housing means receive lug means positioned on the mandrel. Bow spring means on the housing means engage the well bore casing as the tool is lowered into the well bore to position the lug in the J-slot so as to inhibit relative longitudinal and rotational movement between the mandrel and outer housing means. When the mandrel is moved in the other direction in the well bore casing and rotated, the outer housing is restrained by the bow spring means engagement with the well bore casing.

Abstract: A plurality of members are arranged in side by side relation to form a plurality of horizontal rows, vertically stacked in a vertical drier. Movable means are associated with selected rows of the members and are movable to form a floor to separate one part of the drier from another part so as to maintain loads of material moving through the drier separate as the material is being dried. Means are provided to actuate the movable means in a predetermined sequence to stepwise form a floor from the top to the bottom of the drier whereby loads of material in the drier are maintained separate as they are moved through the drier.

Abstract: An insulating and load bearing support for a tubular member such as a pipe includes a load bearing metal member with substantially a flat bottom and sides extending substantially the length of the bottom and perpendicular to the flat bottom for resting on a support member and bonded thereto throughout the contacting surfaces is a foamed plastic rigid load bearing substance such as high density polyurethane that is provided with an arcuate upper surface for conforming with the tubular member. The foamed plastic rigid load bearing member includes arcuate segments projecting beyond the ends of the flat bottom load bearing metal member whereby strap means may be engaged therewith for positioning the insulating and load bearing support adjacent the tubular member.

Abstract: The game comprises dart boards with distinctively colored dart target area designations representative, when dart pierced, of occurrences that can result from selective offense plays as running, pass, and kick plays, player change from dart thrower to watcher being dictated in correspondence with target area reflected results corresponding with change from offense to defense in actual football.

Abstract: A device for measuring the length of a tubular member as it is run into or pulled from a well bore includes a support means which defines ends in spaced relation. Elastomer members are secured on each of the ends with axially, aligned openings therein for mounting the support means on the tubular member, and a measuring wheel is mounted on the support means and is resiliently urged into engagement with the circumference of the tubular member as it is moved through the axially aligned openings in the elastomer ends.

Abstract: A support means is provided with a pair of fixed dies aligned in spaced, horizontal relationship for receiving a metal strip having a base portion with edge portions extending in planes different from that of the base portion to be cut. Cutting die means are movably carried by the support means with actuating means connected to the movable die means for cutting the base portion and the edge portion of the metal strip supported on the spaced fixed dies with the cutting dies being shaped so that the angle cut on the base portion by the cutting die means is different from the angle cut by the cutting die means on the edge portions of the metal strip.

Abstract: A fluid flow is conducted through a heat exchanger and then to a vortex generation chamber in a housing to split the fluid flow into a hot stream and a cold stream. One of the streams is conducted to the heat exchanger for heat transfer relationship between the stream and the fluid flow and the cold stream is conducted to a vessel to condense and separate entrained liquids therefrom and the separated fluid or gas is discharged from the vessel.

Abstract: A Bourdon tube is situated down hole in an oil well or the like, and has attached thereto a coded wheel which rotates an amount determined by the sensed down hole pressure. The wheel has a number of transparent and opaque concentric bands thereon which form a gray code pattern indicative of a selected range of pressures. A plurality of radiant energy transmitters are radially positioned on one side of the wheel in optical alignment with each of the respective bands. A plurality of radiant energy sensors are positioned and aligned in a like manner on the other side of the wheel for sensing the passing or blocking of the radiant energy by the respective bands formed on the wheel. Included is a digital logic circuit controlled by a temperature responsive oscillator which provides timing signals having a frequency determined by the sensed down hole temperature.

Abstract: A centralizer for an elastomer coated blast joint includes an elastomer body having a split extending longitudinally thereof with an opening extending centrally and longitudinally through the body. A plurality of circumferentially equidistant spaced, longitudinally extending projections are integrally formed on the body and extend from the elastomer body to aid in centralizing and positioning a blast joint adjacent a perforate section of a tubular member in a well bore.A plurality of longitudinally spaced rings are molded in the body adjacent the opening with the rings split to coincide with the split in the elastomer body and include portions extending substantially at right angles to the rings with openings therethrough whereby securing means such as a screw or the like may be engaged therethrough for securing and positioning the elastomer body on the blast joint.

Abstract: A double acting mechanical jar includes an outer housing and a mandrel extending longitudinally thereof with means connecting the mandrel and housing for relative longitudinal movement therebetween while inhibiting relative rotation therebetween.

Abstract: A tool for running on a well string such as a drill string in a well bore carries inflatable packer means to close off the well bore adjacent the tool. The tool includes a body having a longitudinal bore therethrough with seating means and shock absorbing means for absorbing the shock of seating a bore close off means to close off the bore in the drill string. The bore close off means includes latch means for latching the bore close off means in seated position in the well string.The tool may be positioned in the drill string near the drilling bit and when pressure is applied in the well string at the earth's surface such pressure is conducted through the bore close off means to inflate the inflatable packer means and seal off the well bore beneath the inflated packer means.

Abstract: A support frame is positioned on a structure in a water covered area and receives and supports an elongated elastomer body to function as a bumper guard to protect the structure and vessel when contact is made. The support frame and the elongated elastomer body are constructed and arranged so that the elongated elastomer body may be positioned in the support from above water level, and may be withdrawn and replaced when necessary from above water level. The support frame includes inwardly extending plates to engage the elongated elastomer body to position it on the support frame and the elongated elastomer body is constructed and arranged to absorb shock, protect the support frame, and includes one or more rigid reinforcing members to inhibit unwanted or accidental removal of the elongated member from the support frames.

Abstract: An arrangement for supporting a tubular inspection unit adjacent a well bore to enable tubular members to be moved through the inspection unit as they are run in or pulled from the well bore to determine characteristics of the tubular members. The arrangement includes an upwardly extending support for positioning adjacent the well bore and a laterally extending arm pivotally secured to the support and being normally positioned, during operation, at a given angular disposition with respect thereto. The pivotal connection allows, at all times, free angular movement of the arm with respect to the support and about a single axis in either angular direction away from the normal position. The arm comprises two members in telescoping relationship and arranged to accommodate, at all times, free axial sliding of one member with respect to the other in directions of both extension and retraction.

Abstract: A stabilizer for a tubular string includes a tubular body with a sleeve split transversely which forms two portions that fit on the body with means for securing the split sleeve on the body.