Abstract: A mattress with a top section that extends beyond the vertical sides of a main or base section. The top section includes a firmer or reinforced outer portion that surrounds a softer or less resilient inner portion. A cover encloses the top section and base section, thereby securing them together. The softer inner portion includes a plurality of foam layers, where the layers have different firmness.

Abstract: An apparatus for reducing the occurrence of motion transfer across a bed when the apparatus is placed upon an independent coil construction mattress. The apparatus includes a substantially resilient pad having a size and shape substantially conforming to the size and shape of the mattress. The pad has a generally planar bottom surface sized and configured to lay upon the mattress further has an opposing load-bearing surface which defines a plurality of peaks extending therefrom. The load-bearing surface further defining a plurality of valleys extending between the load-bearing surface and the bottom surface. The peaks and valleys are arranged across the pad in a pattern to form a plurality of cells which depress independently of each other when pressure is exerted thereupon. A method of making the pad includes sandwiching a foam blank in-between two sacrificial sheets which are fed through two cylindrical rollers having protrusions formed thereon.

Abstract: A pad positionable upon an inclined surface for supporting a recumbent human being upon the inclined surface in a manner preventing slippage of the human being thereupon. The pad comprises a generally rectangularly substrate formed of a resilient material and having opposed lateral and longitudinal sides, a top surface, and a generally planar bottom surface. Formed within the top surface of the substrate are laterally extending shoulder, tail and foot support regions. Extending between the shoulder, tail and foot support regions is a general support region. The quantity of resilient material per unit volume in the general support region is greater than the quantity of resilient material per unit volume in the shoulder, tail and foot support regions. In accordance with a second embodiment of the present invention, the pad may be formed with only a tail support region extending laterally between the longitudinal sides thereof and surrounded by a general support area.

Abstract: A retrievable bridge plug apparatus and retrieving tool, the retrievable bridge plug apparatus serving as a temporary bridge plug that can be set in casing in order to isolate the zone and aiding in the stimulation of the zone or test which would be conducted within the zone. The apparatus would include mechanical slips and compression type sealing packer rubbers with a mechanically operated J-slot for locking it in the running position or the set position. Further, the packer rubbers would be of sufficient size for allowing an annulus between the packer body and the wall of the casing for running and bypassing fluid as it travels in and out of the well, yet are sufficiently close tolerance to the casing for preventing extrusion when set and can be exposed to high differential pressure.

Abstract: A tool, known as FM/WL Tool, utilized with a wireline adaptor kit would be secured to the lower end of a wireline setting tool. The adaptor kit would release from the tool when sufficient setting force is applied, and is retrieved with the wireline setting tool. The wireline setting tool provides for a telescoping action and sufficient force in order to push the outer parts down from the top as the inner mandrel of the tool and the stinger, top sub and bottom sub are pulled upward. The upward pull is transferred to a sleeve by a plurality of lugs on bottom sub assembly. This action causes the packer tool to set by compressing rubber elements and holding the elements compressed by a first upper set of slips and a second lower set of slips wedged between the casing and the upper cone and the lower cone. During the setting action, the pickup sleeve and parts attached will move down until the top slips are wedged against the top cone.

Abstract: A therapeutic mattress overlay for supporting a recumbent human body so as to redistribute body weight away from prominent areas of the human body and also to support selected anatomical body portions, e.g., the lower extremities, of the recumbent human body has a substantially planer resilient member having top and bottom surfaces and first and second edges. Reinforcements extend from proximate the first edge to proximate the second edge of the planer resilient mender such that a patient may be rotated by grasping the reinforcements proximate the first edge of the resilient member and lifting the first edge thereof so as to cause the patient to roll toward the second edge thereof. The reinforcements prevent damage to the resilient member during lifting of the first edge. The pad is formed to have at least one area of less resistance thereon which corresponds to protruding portion(s) of a human body.

Abstract: A travelling valve assembly utilizing a length of tubing, longer than the production screen, positioned at the end of a wash pipe and lowered into the tubing bore so that the lower end of the tubing is a depth below the production screen. When gravel packing is concluded, the tubing is then placed in position by raising the wash pipe and tubing to the upper seal bore. The wash pipe is then sheared from the tubing assembly. The tubing includes seals at each end, which seat in respective seal bores, for sealing off above and below the production screen. There is further provided a valving mechanism, such as a sliding door valve which is operable from the surface between open and closed positions. While the valving mechanism is closed, the production flow is prevented; however, upon opening the valve through a wire line or shifting tool, production flows through the sliding door valve and up to the surface through the tubing.

Abstract: A convoluted foam pad for supporting a reclining human body on a bed including an area for supporting the shoulders of a body, an area for supporting the tail portion of a body and a general support area surrounding the shoulder and tail support areas for supporting the remainder of the body. Each support area is formed by peaks arranged in rows, wherein each peak has a flat top and is spaced from any adjacent peak in the same row by a valley. The average valley thickness of the valleys in both the shoulder support area and the tail support area are less than the average valley thickness of the valleys in the general support area.

Abstract: A therapeutic mattress overlay for supporting anatomical portions of a recumbent human body such that weight is redistributed away from areas suffering from disorders due to injury and/or pathological conditions to promote healing thereof. The therapeutic mattress overlay comprises a first layer and a second layer disposed beneath the first layer and in laminar juxtaposition therewith such that the second layer may be configured to provide an area of increased thickness to support an anatomical body portion. A third layer may be disposed beneath the second layer and in laminar juxtaposition therewith. Convolutions may be formed in the first layer to provide areas of less resistance to accommodate protruding portions of the human body.

Abstract: A travelling disc valve assembly, comprising a length of tubing lowered down a cased wellbore; a crossover tool secured to the lower end of the length of tubing; a length of wash pipe secured to the lower end of the crossover tool; a disc valve assembly secured to the wash pipe and positioned to a lower circulation position in the well bore; a disc valve secured in a bore of the assembly; in the upper portion of the assembly for shearing off the connection between the wash pipe and the disc valve assembly, when the disc valve assembly is in an upper position, providing to prevent fluid from flowing into the formation below the disc valve and to prevent production flow to the surface; and a to rupture the disc valve at a predetermined time so that the production within the formation is allowed to flow through the assembly bore to the surface.

Abstract: A pad for supporting a recumbent human being comprises a substantially planar substrate formed of a resilient material and having first and second regions of lateral grooves extending substantially thereacross. The first region of lateral grooves defines a first shoulder support area and the second region of lateral grooves defines a tail support area. The remainder of the substrate defines a general support area which may have convolutions formed thereupon. A third region of lateral grooves may extend substantially across the substrate to define a second shoulder support area such that said first and second shoulder support areas are generally symmetrical with respect to the tail support area in order to facilitate of either end of the pad as a head end. A less resilient peripheral region may optionally be formed about the periphery of the pad to provide a means for helping to prevent incapacitated persons from rolling off of the pad.

Abstract: A convoluted foam pad for supporting a reclining human body on a bed including an area for supporting the shoulders of a body, an area for supporting the tail portion of a body and a general support area surrounding the shoulder and tail support areas for supporting the remainder of the body. In one embodiment the support area is formed by peaks arranged in rows, wherein each peak has a flat top and is spaced from any adjacent peak in the same row by a valley. The average valley thickness of the valleys in both the shoulder support area and the tail support area are less than the average valley thickness of the valleys in the general support area. In another embodiment, the shoulder and tail support areas are formed by parallel ribs separated and bounded by areas comprising flat-topped peaks and valleys.

Abstract: A convoluted foam pad for supporting a reclining human body on a bed including an area for supporting the shoulders of a body, an area for supporting the tail portion of a body and a general support area surrounding the shoulder and tail support areas for supporting the remainder of the body. In one embodiment the support area is formed by peaks arranged in rows, wherein each peak has a flat top and is spaced from any adjacent peak in the same row by a valley. The average valley thickness of the valleys in both the shoulder support area and the tail support area are less than the average valley thickness of the valleys in the general support area. In another embodiment, the shoulder and tail support areas are formed by parallel ribs separated and bounded by areas comprising flat-topped peaks and valleys.

Abstract: A convoluted foam pad for supporting a reclining human body on a bed including an area for supporting the shoulders of a body, an area for supporting the tail portion of a body and a general support area surrounding the shoulder and tail support areas for supporting the remainder of the body. Each support area is formed by peaks arranged in rows, wherein each peak has a flat top and is spaced from any adjacent peak in the same row by a valley. The average valley thickness of the valleys in both the shoulder support area and the tail support area are less than the average valley thickness of the valleys in the general support area.

Abstract: Disclosed are packers for use with a gravel pack system in an oil or gas well. The packers are of both the releasable and non-releasable, or sump type. The packers are designed so that after they are set or actuated and they seal against the casing wall or the well bore, fluid pressure in either axial direction on the packer seal will increase the energizing force on the seals. This self-energizing feature is accomplished with selectively disposed and sized annular seals on telescoping members.

Abstract: A travelling disc valve assembly, comprising a length of tubing lowered down a cased wellbore; a crossover tool secured to the lower end of the length of tubing; a length of wash pipe secured to the lower end of the crossover tool; a disc valve assembly secured to the wash pipe and positioned to a lower circulation position in the well bore; a disc valve secured in a bore of the assembly; in the upper, portion of the assembly for shearing off the connection between the wash pipe and the disc valve assembly, when the disc valve assembly is in an upper position, providing to prevent fluid from flowing into the formation below the disc valve and to prevent production flow to the surface; and a to rupture the disc valve at a predetermined time so that the production within the formation is allowed to flow through the assembly bore to the surface.