Abstract: An aircraft cabin partition system may include at least a first partition with a partition cut-out and a first flange with a first flange cut-out. The aircraft cabin partition system may include a first coupling assembly configured to be inserted within the first flange cut-out, configured to be inserted within an opening of a seat rail within a floor of an aircraft cabin, and configured to couple the at least the first partition to the seat rail when engaged. The aircraft cabin partition system may include at least a second partition with a second flange with a second flange cut-out. The aircraft cabin partition system may include a second coupling assembly configured to be inserted within the partition cut-out, configured to be inserted within the second flange cut-out, and configured to couple the at least the second partition to the at least the first partition when engaged.

Abstract: The power drive system of the present invention provides a rotary drive swivel unit which can be tilted along its horizontal pivotal axis until its output shaft is substantially horizontal. A drill pipe provided in a substantially horizontal bed adjacent to the drilling rig is aligned with the output shaft of the rotary drive swivel unit and this joint is made up. The rotary drive swivel unit is raised and the suspended drill pipe reoriented to a vertical position and is aligned over the drill string and added thereto substantially at platform level. The power drive system turns the drill string and advances the drilling downhole. The rotary drive swivel unit disengages from the drill string and the foregoing steps are repeated.

Abstract: The power drive system of the present invention provides a rotary drive swivel unit which can be tilted along its horizontal pivotal axis until its output shaft is substantially horizontal. A drill pipe provided in a substantially horizontal bed adjacent to the drilling rig is aligned with the output shaft of the rotary drive swivel unit and this joint is made up. The rotary drive swivel unit is raised and the suspended drill pipe reoriented to a vertical position and is aligned over the drill string and added thereto substantially at platform level. The power drive system turns the drill string and advances the drilling downhole. The rotary drive swivel unit disengages from the drill string and the foregoing steps are repeated.

Abstract: A winch apparatus, such as draw works used for raising and lowering drill pipe into a borehole, in which motive power is provided by a hydraulic motor. A multi-stage rotary disk valve is interposed between the fluid supply pump and the hydraulic motor to provide a variable fluid flow rate and thereby to provide means for variably controlling the speed and direction of rotation of the draw works. A directional control disk is provided in the valve to provide reverse flow to prevent cavitation when the drill pipe is in free fall into the borehole, which drives the hydraulic motor in reverse. The directional control disk also controls the entry into the reverse flow of additional fluid provided by a high volume, low pressure auxiliary pump.

Abstract: A multiple flow and direction control valve connectable to a plurality of separate fluid sources, the valve having a fluid power port and a fluid exhaust port and a first movable valve body being operable to add or subtract the flow rates of a plurality of fluid sources to either the power port or the exhaust port. The valve has a directional control member having two power ports and one exhaust port and being operable in a first position to apply power fluid to one of the power ports, exhaust fluid being returned through the second power port and routed out of the exhaust port and in a second position said power fluid being routed to the other power port and returned through the first power port to the exhaust port. The valve includes modified directional control members which may be stacked to sequentially provide directional control for a plurality of outputs.

Abstract: A multiple flow and direction control valve connectable to a plurality of separate fluid sources, the valve having a fluid power port and a fluid exhaust port and a first movable valve body being operable to add or subtract the flow rates of a plurality of fluid sources to either the power port or the exhaust port. The valve has a directional control member having two power ports and one exhaust port and being operable in a first position to apply power fluid to one of the power ports, exhaust fluid being returned through the second power port and routed out of the exhaust port and in a second position said power fluid being routed to the other power port and returned through the first power port to the exhaust port. The valve includes modified directional control members which may be stacked to sequentially provide directional control for a plurality of outputs.

Abstract: A multiple flow and direction control valve connectable to a plurality of separate fluid sources, the valve having a fluid power port and a fluid exhaust port and a first movable valve body being operable to add or subtract the flow rates of a plurality of fluid sources to either the power port or the exhaust port. The valve has a directional control member having two power ports and one exhaust port and being operable in a first position to apply power fluid to one of the power ports, exhaust fluid being returned through the second power port and routed out of the exhaust port and in a second position said power fluid being routed to the other power port and returned through the first power port to the exhaust port. The valve includes modified directional control members which may be stacked to sequentially provide directional control for a plurality of outputs.

Abstract: A multiple flow selection valve connectable to a plurality of fluid sources, the valve having a fluid return port and a fluid working port and being operable to add or subtract the flow rates of the plurality of fluid sources to either the working port or the return port for the primary purpose of driving a constant volume motor connected to the working port and such that the total fluid flow rate through the valve is substantially constant. The device may be used to mix various fluids from different sources.

Abstract: A golf club used to putt a golf ball during a game; the club including a shaft with a handle on one end, and a putter head on its other end, the putter head including a steel base having a clear, rock-hard, plastic face bonded to its front side, for striking against the golf ball, and the head having a groove on top, for lining up towards a hole.