Abstract: A repetitive ice block or cube maker in which chilled water flows over a vertical evaporator to form ice blocks within ice freezing pockets of designated shape. The ice blocks are positively released by concurrently heating the evaporator while inducing a designated vibration in the evaporator. The vibration may be of sonic or ultrasonic frequency. A breather vacuum breaker vent may be provided in the bottom of each ice pocket. Each ice block is released with a minimum of heat being developed while heating the evaporator.

Abstract: A medical bandage product and method for continually administering a chelating agent through the skin of a living body in a controlled manner. The product includes a membrane of selected area adapted for placement against the skin, the membrane being formed of an aqueous solution release rate controlling material. An aqueous liquid impermeable member is connected about the edges of the membrane and having sides forming a reservoir. The aqueous solution consists essentially of a chelation agent in selected proportion, a transportation agent in selected proportion to the chelation agent, a pH adjustment agent in selected amount, and a vasodilator in selected proportion to the chelating agent and the balance water. Means for retaining the product against the skin is provided. Also discloses the method for transporting a chelating agent throughout body tissues with use of the product.

Abstract: Valve seat grinding apparatus incorporating an improved articulated rotatable torque transferring coupling. The coupling includes torque transfer member in connection with a pair of functionally cylindrical torque members. Each torque member includes a circular torque transfer spline with the axis of spline being disposed perpendicular to the axis of torque member. The spline has an opening of designated internal distance located at one end of torque member and centered with the axis of torque member. A pair of circular torque transfer grooves are defined into torque transfer member which cross at right angles on each side of torque transfer member to form a pair of intersections. The intersections form flat clearance surfaces with the distance between clearance surfaces being less than designated distance of internal diameter of opening.

Abstract: A measuring and transmitting apparatus for use in a drill string of a well drilling rig has an elongated tubular member functioning as a drill collar in a drill string. This apparatus includes an instrument having transducers that measure lithological and geophysical parameters in the borehole and derive from them data that is encoded into pressure pulsations of the mud flow of the drill string by a modulated signal generator. The modulated signal generator has a valve assembly that selectively restricts the mud flow to introduce the data. The valve is constructed with a movable valve element that is displaced into an orifice located in the mud flow stream. The movable valve element is mounted in a pressure balanced and an area balanced configuration in order that it can be displaced between extended and retracted positions by a valve actuator without regard to the mud pressure either within the drill string or in the borehole annulus around the drill string.

Abstract: Discloses a two-way telemetry system and method for transmitting data taken at the bottom of a well bore to the earth's surface with one part of the telemetry circuit being the metallic drilling string and with another part of the telemetry circuit being a large volume of the earth formation surrounding the well bore between the drill bit and the earth's surface.

Abstract: Discloses a well bore electrical generator for a subsurface measuring system incorporating a rotary liquid seal protection system adapted to be actuated by flow of drilling mud through the drill pipe. System includes a sealed housing defining a first chamber separated from a second chamber with the chambers being filled with a sealing liquid. A rotatable shaft driven by an impeller extends from outside the housing into the first chamber through a rotary seal connected to establish a liquid seal between the housing and the shaft. Means are provided for maintaining the fluid pressure of the sealing liquid within the chambers to be equal to the fluid pressure of the drilling mud outside the housing. A rotatable pump connected to the shaft is adapted to pump the sealing liquid from the second chamber into the first chamber.

Abstract: A hydraulic power unit is provided for a downhole instrument of a measurement while drilling system for a well drilling. The hydraulic power unit is enclosed within a drill collar that is connected in the drill string of a rotary drilling rig. An outer body sleeve is rigidly mounted in the instrument drill collar. A fixed inner sleeve is connected to the outer body sleeve in a concentric relation with a longitudinally movable plunger assembly supported therebetween and movable in the telescopic fashion between an extended position and a retracted position to provide hydraulic power fluid for the hydraulically powered circuits of the instrument.

Abstract: Discloses a system for stabilizing thin flexible foil recording discs (such as TV recordings) against axial fluctuation when rotated at high speeds (1500-5000 rpm). May include stationary guide plates formed and disposed to confine the rotating disc in such manner that the rotating disc pumps a uniform, radially moving and stabilizing layer of air outwardly between the rotating disc and each guide plate. May also include windows to optically scan the recording disc, as needed. Discloses alternate kinds of suitable recording discs.

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.