Abstract: A tubing conveyed tool for use in perforating a well bore utilizing abrasive perforating techniques. The perforating tool is particularly useful in non-vertical wells. The perforating tool is designed to permit running and setting a bridge plug, and then perforating the well bore without requiring the removal of the tool string. An eccentric weight bar can also be used to allow for directional perforating in non-vertical wells. The eccentric weight bar uses gravity to cause the bar to rotate to a predetermined position.

Abstract: A tubing conveyed tool for use in perforating a well bore utilizing abrasive perforating techniques. The perforating tool is particularly useful in non-vertical wells. The perforating tool is designed to permit running and setting a bridge plug, and then perforating the well bore without requiring the removal of the tool string. An eccentric weight bar can also be used to allow for directional perforating in non-vertical wells. The eccentric weight bar uses gravity to cause the bar to rotate to a predetermined position.

Abstract: A tubing conveyed tool for use in perforating a well bore utilizing abrasive perforating techniques. The perforating tool is particularly useful in non-vertical wells. The perforating tool is designed to permit running and setting a bridge plug, and then perforating the well bore without requiring the removal of the tool string. An eccentric weight bar can also be used to allow for directional perforating in non-vertical wells. The eccentric weight bar uses gravity to cause the bar to rotate to a predetermined position.

Abstract: A vibrating tool comprising a hammer and valve that oscillate axially inside a housing to produce vibrations solely in response to fluid flow through the tool at an operating flow rate. The valve is supported by a spring that resists compression until a minimum operating flow rate is achieved, and hammer is also spring-loaded. When the valve strokes down and engages the hammer, flow through the hammer is restricted. Increased fluid pressure pushes the hammer down away from the valve, resulting in a sudden decrease in pressure, allowing both the hammer and valve to rebound and create vibrational impacts. The cycle repeats continuously as long as an adequate flow rate is maintained.

Abstract: A fluid cutting tool and method for perforating or severing tubular members from inside. The tool is especially suited for use with a rotational drive system, such as a downhole motor, to separate downhole structures, such as stuck production tubing. The cutting tool preferably takes the form of an elongate metal body with an open first end connectable to the end of a downhole motor. The downhole end of the tool may be conical. A fluid conduit within the body of the tool communicates with the fluid channel in the downhole motor. Ports in the sides of the tool body direct jets of cutting fluid out the side of the tool. The tool attached to the motor is fed downhole until the tool is at the desired location in the well. Then the motor is operated to rotate the tool while cutting fluid is pumped through it. This causes the jets of fluid to be directed at the inner surface of the production tubing (or other tubular structure). This process is continued until the tubing is perforated or severed, as needed.

Abstract: A rotary device, such as a downhole motor, with a rotary wave seal assembly. The seal assembly is formed by a sinuous or non-linear circumferential gland or groove and an annular seal member, such as an O-ring, supported in the groove. The device further includes at least one thrust bearing assembly for transmitting axial pressure from the bearing housing to the drive shaft. Each thrust bearing comprises a self-lubricating thrust washer as the bearing element. Still further, where the rotary device comprises two coaxial tubular structures that are not to rotate relative to each other, an anti-rotation means is provided. The anti-rotation means includes a cylindrical pin received in mating longitudinal, radiused grooves in the outer wall of the innermost elongate member and the inner wall of the outermost tubular member. The anti-rotation means includes a cylindrical pin received in the mating longitudinal grooves.

Abstract: Freshly picked washed mushrooms are subject to a modified atmosphere and infused with a suspension containing a particulate microscopic heat stable material. Upon blanching in boiling water the weight loss experienced is reduced from a normal 24% to 33% loss to between a 2% loss and a 5% or more weight gain.

Abstract: Apparatus for aiding the mobility and independence of disabled persons, comprising a harness encircling the torso and upper thigh areas equipped with lifting points along the centerline and above the center of gravity of the individual, a system of lifting levers mounted on a wheelchair which attach to the harness and raise the individual along a natural path from a sitting to a standing position, and alternately, an overhead suspension system attaching to the harness and being either attached to a wheelchair or a permanently mounted fixture in a bathroom or other area to allow independent movement from a wheelchair to a bathtub, bed, automobile or the like.