Abstract:
The present disclosure presents several embodiments for metering devices some of which also have pumping capability. The devices utilize one or more pistons located within a cylindrical rotor. As the cylindrical rotor is turned by a suitable torque/power source, a first face of each piston is exposed to an inlet supplying a fluid to be metered. The piston is then moved within the associated channel or bore within the rotor, allowing the volume of the channel to be filled with fluid. The continuing rotation of the rotor then removes the piston from the fluid supply and moves the channel through an angular displacement. The piston is then moved - either through applied power for active pistons or the force of the fluid supply for passive pistons - in the opposite direction, forcing the fluid out of the channel. In this way, a precise amount of fluid can be metered from each channel.
Abstract:
Apparatus and methods are disclosed that are useful for robotic gantry systems that are lightweight while at the same time offering rigidity or stiffness for implementation in Contour Crafting construction and material delivery techniques. The present disclosure is directed to robotic gantry system and material transport apparatus that use of very light structural members that have sufficient compressive strength, but which may otherwise be weak in the presence of bending forces, in conjunction with cables that provide stiffness against bending. Use of such cables provides needed tension while at the same time allowing the robotic gantry system to be very light compared to solid structures, e.g., those with I-beams, etc. Material delivery systems including passive articulated arms are also disclosed.
Abstract:
A system, apparatus and method are useful for lifting water in a gas-producing wellbore through the application of a differential between pressure of the gas in the wellbore's gas-production conduit and pressure of the wellbore annulus. The apparatus comprises a module disposed in the gas-producing wellbore for collecting by condensation water that has been lifted as water vapor with produced gas in a gas-production conduit disposed in the wellbore, and one or more lift modules for applying the pressure differential to lift the collected water within the wellbore.
Abstract:
A haptic apparatus (200) may include a plate element (202) positionable to extend over an anatomical segment of a user, and an elongate member (204) coupled to the plate element (202) and configured to be movably mounted onto the anatomical segment so as to remain substantially vertical and substantially perpendicular to the anatomical segment while the anatomical segment undergoes a motion (see figure 2). The haptic apparatus (200) may further include a motion restrictor (206) responsive to a control signal to impede the motion of the anatomical segment by generating an opposing force along the dongate member (204) in a direction normal to the anatomical segment, thereby providing tactile feedback to the user.
Abstract:
A process for making construction material may include mixing predetermined portions of two or more components of cementitious materials without ingredients that would allow the mixture to cure, and separating the un-curable mixture of the two or more components into a plurality of pellets, each having substantially the predetermined portions of the two or more components. An extrusion system may include a transport line configured to transport the dry pellets in a gaseous transport stream.
Abstract:
A deployable crafting machine may include a vehicle and a gantry system. The gantry system may be configured to be collapsed on the vehicle during which the gantry system is inoperable and to be expanded during which the gantry system is operable and supported at least in part by the vehicle. A deployable crafting process may include moving a vehicle to a first location while a gantry system is stored on the vehicle in a collapsed and inoperable state and expanding the gantry system into an operable state after the vehicle arrives at the first location during which the gantry system is supported at least in part by the vehicle.
Abstract:
A system for storing and retrieving energy may include a cable and a multi-segment weight connected to the cable. The multi-segment weight may include a chain of weight segments. The chain of weight segments may be flexible so as to permit each weight segment to rotate with respect to each of its neighboring weight segments. A plurality of cable modules may be attached at spaced-apart locations to the cable above the multi-segment weight. Each cable module may prevent the cable above and below the cable module from coming in contact with a neighboring stationary wall. A hoist may controllably raise and lower the multi- segment weight by sequentially grabbing each neighboring cable module.
Abstract:
A fluid metering device may meter the flow of fluid. The device may have a main chamber and a piston configured and oriented to reciprocate within the main chamber. The piston may be configured and oriented to define a first and a second sub-chamber whose volumes vary inversely as a function of the position of the piston during its reciprocation. The fluid metering device may have a first inlet valve configured to controllably regulate the flow of fluid into the first sub- chamber, a first outlet valve configured to controllably regulate the flow of fluid out of the first sub-chamber, a second inlet valve configured to controllably regulate the flow of fluid into the second sub-chamber, and a second outlet valve configured to controllably regulate the flow of fluid out of the second sub-chamber. A valve controller may be configured to control each of the values in a manner that causes fluid to flow through the each of the sub-chambers at an average rate that substantially tracks a control signal which is delivered to the valve controller.
Abstract:
An automated extrusion construction system may include an extrusion nozzle configured to extrude construction material in a substantially horizontal direction against an elongated and substantially vertical surface. An extrusion nozzle may have a height adjustment mechanism configured to adjust the height of an outlet in response to level deviations in the surface on which the construction material is extruded by the extrusion nozzle. An automated extrusion construction system may include a slicing mechanism configured to controllably slice through the extruded layer.
Abstract:
A process for making construction material may include mixing predetermined portions of two or more components of cementitious materials without ingredients that would allow the mixture to cure, and separating the un-curable mixture of the two or more components into a plurality of pellets, each having substantially the predetermined portions of the two or more components. An extrusion system may include a transport line configured to transport the dry pellets in a gaseous transport stream.