Abstract: Provided herein is a resin product useful for the production of three-dimensional objects by additive manufacturing, and methods using the same. The resin may include a reactive blocked prepolymer comprising a prepolymer blocked with reactive blocking groups; a polyol; a photoinitiator; and at least one organometallic catalyst. A packaged product useful for the production of three-dimensional objects by additive manufacturing, the product comprising a single container having a single chamber and a resin in the chamber with all components mixed together, is also provided.

Abstract: Provided herein is a method of forming a three-dimensional object in which the polymerizable liquid includes a mixture of (i) a light polymerizable first component, and (ii) a heat polymerizable second component; the heat polymerizable second component comprising (i) a first blocked reactive constituent that is blocked with a volatile blocking group, and optionally (ii) a curative. Upon heating a formed three-dimensional intermediate sufficiently, the volatile blocking group is cleaved and vaporizes out of the three-dimensional intermediate, to form the three-dimensional object. Also provided is a three-dimensional object produced by the method. Further provided is a polymerizable liquid composition useful for carrying out the method, and prepolymers and monomers useful for the polymerizable liquid composition.

Abstract: Provided herein is a dual cure resin useful for the production of an object by additive manufacturing, comprising or consisting essentially of: (a) a photoinitiator; (b) not more than 5, 10 or 20 ppm of a polyurethane catalyst (e.g., tin, tertiary amine, bismuth, zinc, zirconium, or nickel catalysts); (c) a polyol; (d) free (i.e., unblocked) polyisocyanate; and (e) blocked polyisocyanate, the isocyanate groups of which are blocked by reaction with an amine (meth)acrylate blocking agent. Methods of making an object with the resin are also provided.

Abstract: Provided herein is a resin product useful for the production of three-dimensional objects by additive manufacturing, and methods using the same. The resin may include a reactive blocked prepolymer comprising a prepolymer blocked with reactive blocking groups; a polyol; a photoinitiator; and at least one organometallic catalyst. A packaged product useful for the production of three-dimensional objects by additive manufacturing, the product comprising a single container having a single chamber and a resin in the chamber with all components mixed together, is also provided.

Abstract: Provided herein are methods of making (meth)acrylate blocked polyurethanes with zirconium catalysts, dual cure resins containing (meth)acrylate blocked polyurethanes and zirconium catalysts, methods of using the same in additive manufacturing, and products made therefrom.

Abstract: Provided herein is a method of forming a three-dimensional object in which the polymerizable liquid includes a mixture of (i) a light polymerizable first component, and (ii) a heat polymerizable second component; the heat polymerizable second component comprising (i) a first blocked reactive constituent that is blocked with a volatile blocking group, and optionally (ii) a curative. Upon heating a formed three-dimensional intermediate sufficiently, the volatile blocking group is cleaved and vaporizes out of the three-dimensional intermediate, to form the three-dimensional object. Also provided is a three-dimensional object produced by the method. Further provided is a polymerizable liquid composition useful for carrying out the method, and prepolymers and monomers useful for the polymerizable liquid composition.

Abstract: The forwardly projecting wand of a conventional commercial carpet steam cleaner is propped up by a connected stabilization leg extension so as to reduce the weight imposed upon the operator by the cleaner during its operation. The stabilizing leg extension is provided the same cleaning capabilities the conventional cleaner has so that, modified in this way, the number of cleaning members is doubled and twice as much of the cleaning area is covered with each stroke of the wand. Handlebars are added to further ease the task and an attached stowage nest is incidentally included for a supplementary cleaning extension.

Abstract: A method and an apparatus for determining displacement of a surface member coupled to a user interface mechanism, for example a joystick handle, using a fixed optical motion sensor. Using the displacement of the surface member, the method, and apparatus may determine an absolute position of the surface member, recalibrating a center point upon detecting a difference in light reflection of the center point.

Abstract: An apparatus, system and method of sharing device data from a peripheral device by at least a first and a second computer where the peripheral device coupled with the first computer. The apparatus includes a device emulator coupled between the first computer and the second computer, the device emulator adapted to pass the device data from the first computer to the second computer in a format used by the peripheral device. Device data is received at the first computer, and it is determined whether the device data should be processed by the first computer, and the device data is passed to the device emulator for transmission to the second computer. In a method implementation, the determining operation may examine whether the first computer is the intended target of device data. The device data may be received at the device emulator and the device data may be encoded in a format used by the peripheral device, and transmitted in the format to the second computer.

Abstract: A system and methods are provided that allows an end user such as a doctor to draw a picture representation of a patient physical findings such as symptoms, treatments, imaging results or other procedures so that the rendering is captured and translated to a textual description as progress notes, diagnosis, or for inclusion with an electronic medical record, for example. The captured rendering (“sketch-to-text”) is storable and recallable for future annotations as needed. The translated description may be used for automated billing.

Abstract: An apparatus, method, and system for coupling a host computer to a peripheral device over an extended distance. In one example, a first hub is provided for coupling with the host computer, the first hub configured as a compound device including a hub function and an embedded function, the first hub configured such that the embedded function is a virtual hub thereby providing an additional amount of time for signal transmissions by the first hub. A communications link is provided for coupling the first hub with the peripheral device, the characteristics of the communications link being based in part on the additional amount of time made available by the configuration of the first hub.

Abstract: An apparatus and method for coupling a host computer to one or more peripherals or for coupling peripherals to one another. In one example, the apparatus includes a hub having an upstream port for coupling with the host computer and one or more downstream ports for coupling with the one or more peripherals; and a local host dynamically coupled with the upstream port. In one example, when the host computer is not coupled with the upstream port, the local host communicates with the peripherals; and when the host computer is coupled with the upstream port, the local host disconnects from the upstream port so that the host computer communicates with the peripherals through the hub. In this manner, the apparatus may be used to couple peripherals to a host computer, or when a host computer is not present, the data from the peripherals may be communicated through the local host. Other embodiments are also disclosed.

Abstract: A touch-sensor device, and method of making same, having a sensor element, conductive sensor trace, and active electronic components disposed on a single-layer.

Abstract: An apparatus and method for coupling a host computer to one or more peripherals or for coupling peripherals to one another. In one example, the apparatus includes a hub having an upstream port for coupling with the host computer and one or more downstream ports for coupling with the one or more peripherals; and a local host dynamically coupled with the upstream port. In one example, when the host computer is not coupled with the upstream port, the local host communicates with the peripherals; and when the host computer is coupled with the upstream port, the local host disconnects from the upstream port so that the host computer communicates with the peripherals through the hub. In this manner, the apparatus may be used to couple peripherals to a host computer, or when a host computer is not present, the data from the peripherals may be communicated through the local host. Other embodiments are also disclosed.

Abstract: A novel flow control valve for metering a fluid flow between a pressure chamber and a discharge space, and a fuel metering device utilizing this flow control valve are disclosed. The flow control valve is a tapered toroid, rotating about a fixed axis. A seal means, fixedly mounted to the valve, fluidically isolates the pressure chamber from the discharge space when the valve is in its closed position. The fuel metering device utilizes said tapered toroidal flow control valve to deliver a precisely metered amount of a preferably gaseous fuel to an internal combustion engine. The fuel metering device comprises a rotary actuator capable to move the toroidal valve about a fixed fulcrum. Means, including springs, are provided to close the valve when the rotary actuator is de-energized. The device further comprises a rotary position sensor, which, in co-operation with said rotary actuator enable accurate angular positioning of the valve.

Abstract: A method and apparatus are provided for generating a ratioed clock signal. A first clock signal having a first frequency is output. At least one gating signal indicating ratio is output. In response to the first clock signal and the gating signal, a second clock signal is output. The second clock signal has a frequency that is substantially related to the first frequency by the ratio.

Abstract: A thresholding mechanism and method for performance monitoring of memory array access distribution times is disclosed. A data request signal sent to the memory hierarchy activates a first counter, having a first count value. A clock coupled to the first counter increments the first count value with each clock cycle, while also decrementing a decrementer having a predetermined threshold value. The first counter is deactivated by a completion signal when the data request is completed. A second counter having a second count value is incremented when the first count value is greater than the threshold value by the time the data request is complete.

Abstract: A mechanism is provided in a microprocessor bus interface to eliminate the turnabout in those cases where the same slave is involved in consecutive read data bus tenures or where the same master and slave are involved in consecutive write data bus tenures. A new optional signal is added to the bus interface, called pre-last transfer acknowledge. The signal is asserted by the slave one cycle before the last transfer acknowledge signal is asserted. The signal is intended to be received by the system's bus arbiter. If the current data tenure and the next data tenure are both read operations directed to the same slave (such as the memory controller) or both write operations from the same master to the same slave, then the arbiter may grant the data bus to the master of the next data tenure the cycle following the assertion of the pre-last transfer acknowledge indicator.

Abstract: An electronic ignition timing control system including a mechanism for retarding the ignition timing for all or a predetermined subset of the cylinders in a multi-cylinder internal combustion engine during cold starts. Spark timing is reduced for a balanced subset of the cylinders for a short time after the engine is started in order to transfer additional heat to the exhaust system to more quickly raise the temperature of the catalyst and thereby reduce undesired emissions.

Abstract: An integrated hydraulic system for an automotive vehicle includes a hydraulic pump (16) coupled with and driven by an internal combustion engine (12) and internal and external hydraulic circuits for operating hydraulically powered engine accessories and hydraulically powered chassis components. An electronic controller (18)) sensing a variety of operating parameters controls the output of the hydraulic pump (16) so as to assure that adequate hydraulic fluid is provided to the various components and accessories.