Abstract: An installation for hitching at least one personal transporter in a fixed position relative either to an immobile fixture or another conveyance. The installation has a clasp for coupling a personal transporter in such a manner as to immobilize the transporter. The installation may also have a powering junction for supplying electrical power to the personal transporter, a data connection for transferring information between the installation and the personal transporter, and a heater for heating the personal transporter. Straps may be provided to allow the transporter to be loaded onto a conveyance by wrapping the straps around the driven wheels of the transporter.

Abstract: A method for controlling the fuel-air ratio of a burner having a blower responsive to a blower drive signal for injecting air into the burner. The method is based at least on the concentration of a gas in an exhaust gas product of a combustion chamber of the burner and includes measuring the gas concentration in the exhaust gas product, deriving a gas concentration signal from the measured gas concentration, determining the fuel-air ratio from the gas concentration signal and the sign of the derivative of the gas concentration signal with respect to the blower drive signal, and controlling the fuel-air ratio by adjusting the air flow rate into the burner. The burner may be, for example, in a Stirling cycle engine.

Abstract: A thermal cycle engine having a heat exchanger for transferring thermal energy across the heater head from a heated external fluid to the working fluid. The heat exchanger has a set of heat transfer pins each having an axis directed away from the cylindrical wall of the expansion cylinder. The height and density of the heat transfer pins may vary with distance in the direction of the flow path, and the pin structure may be fabricated by stacking perforated rings in contact with a heater head. Ribs are provided interior to the heater head to enhance hoop strength and thermal transfer.

Abstract: A transporter for transporting a first person and one or more riders over a surface. The transporter includes a first support platform for supporting the first person, the first support platform having left and right sides and defining a fore-aft vertical plane and a lateral plane. At least one ground-contacting element is coupled to the first support platform such that the first support platform is capable of tilting in the fore-aft plane about a tilt axis. The at least one ground-contacting element is driven by a motorized drive arrangement so as to cause locomotion of the transporter. A controller commands the motorized drive arrangement. The controller is configured so that at least one of fore and aft sustained motion of the transporter is based at least on fore-aft tilting of the first support platform.

Abstract: A method for conducting the motion of a transporter under riderless conditions. The transporter has two laterally disposed primary wheels. In accordance with the method, an input is received via a user input disposed on the transporter and a control signal corresponding to the input received is generated. Then a torque is applied to the laterally disposed wheels so as propel the transporter on the basis of at least the control signal.

Abstract: A device and methods for supporting a payload, such as a user, at a variable height above the ground and for repositioning the payload in a dynamically stabilized mode of operation. The transporter device has two laterally disposed primary wheels and a payload support that may be used to raise or lower the payload. A torque is applied to the laterally disposed wheels so as to propel the transporter on the basis of a control signal that may include repositioning of the device.

Abstract: A personal transporter device and corresponding method of operation are given that utilize an exercise mode. A transporter assembly includes a platform, a ground-contacting module, and a motorized drive. The platform supports a user. The ground-contacting module is connected to the platform. The motorized drive powers the ground-contacting module to drive the assembly in a selected direction over an underlying surface. A controller is coupled to and controlling the motorized drive, and also has an exercise mode for opposing a user-provided human power input with a selected level of resistance. When the device is a dynamically stabilized transporter, the controller also controls the motorized drive so as to dynamically stabilize the transporter assembly.

Abstract: A regenerator for a thermal cycle engine and methods for its manufacture. The regenerator has a random network of fibers formed to fill a specified volume and a material for cross-linking the fibers at points of close contact between fibers of the network. A method for manufacturing a regenerator has steps of providing a length of knitted metal tape and wrapping a plurality of layers of the tape in an annular spiral.

Abstract: A personal vehicle for transporting a user over a surface including an external combustion engine. The vehicle includes a generator for converting the mechanical energy produced by the external combustion engine to electrical energy and an energy storage device for storing power provided by the generator and for providing power to the external combustion engine and the assembly. The personal vehicle includes a controller for controlling a total power load placed on the external combustion engine providing short term regulation of external combustion engine parameters.

Abstract: A personal transporter that provides both for propulsion by a user, and, at the same time, for dynamic stabilization by means of a powered actuator. A pitch variable such as pitch or time rate of change of pitch is sensed and used to determine the torque provided to a wheel, whether in a co-rotating or counter-rotating direction, in order to maintain stability of the transporter with respect to tipping in the fore-aft plane.

Abstract: A vehicle capable of an extraordinary mode of motorized motion programmed to draw the attention of an operator. When one or more sensors sense a condition requiring attention of the operator, an oscillatory motion is superposed upon the motion of the ground-contacting members.

Abstract: A class of transportation vehicles for carrying an individual over ground having a surface that may be irregular. This embodiment has a motorized drive, mounted to the ground-contacting module that causes operation of the vehicle in an operating position that is unstable with respect to tipping when the motorized drive arrangement is not powered.

Abstract: A method for stabilizing a balancing transporter under riderless conditions. The balancing transporter is characterized by a center of mass, and has two laterally disposed wheels and a region of contact with an underlying surface. In accordance with the method, the absence of a user aboard the transporter is first detected. Then a desired transporter pitch is determined such as to establish a condition of stasis wherein the center of mass is disposed directly above the region of contact between the balancing transporter and the underlying surface. Finally, a torque is applied to the laterally disposed wheels so as to maintain the transporter at the desired transporter pitch. The torque may include coadded terms where the terms are, respectively, proportional to a pitch error, a pitch rate, a wheel rate, and an integral representing the wheel rotation that was required to bring the transporter to the condition of stasis.

Abstract: A transportation vehicle for transporting an individual over ground having a surface that may be irregular. The vehicle has a support platform for supporting the subject and the support platform is coupled to a ground-contacting module at a pivot. While the ground-contacting module may be statically stable, balance of the support platform with respect to the ground-contacting module is maintained by motion of the ground-contacting module in response to leaning of the support platform. A motorized drive coupled to the ground-contacting module causes locomotion of the vehicle and the subject therewith over the surface, while a control loop, in which the motorized drive is included, dynamically enhances stability in the fore-aft plane by operation of the motorized drive in connection with the ground-contacting module. In the event of failure of the control loop, the pivot connection of the support platform to the ground-contacting module may be locked, thereby ensuring stability of the static assembly.

Abstract: A method of removing and retrieving a staple or other fastening device for a plurality of objects, commonly paper, without the use of additional tools. The combined fastening removal and retrieval device comprises a tab of tear-resistant material that is placed on top of or around the objects being stapled or otherwise fastened together. The combination of the stack of papers and the combined fastening removal and retrieval device is then fastened together to form a single object. To remove the fastening device, the user pulls on the tab, which in turn pulls on the fastening device, such as a staple, until the staple or other fastening device is removed from the stack of papers. An additional benefit is that the staple will remain attached to the fastening removal device.

Abstract: A fuel injector for a liquid fuel burner that provides for large turn-down ratios and low firing rates. The fuel injector has a fast acting valve to provide a pulsed flow of fuel from a fuel supply and a nozzle coupled to the valve for receiving and atomizing the pulsed flow of fuel. The pulse of atomizing fuel is injected into the throat of a burner. A fuel controller coupled to the fuel supply and the fuel injector governs the rate of fuel delivery by controlling the duration and frequency of an opening period of the fast acting valve.

Abstract: Improvements to a motorized balancing personal transporter. An intelligent battery has a battery container sealed against moisture and a plurality of battery blocks housed within the battery container. Additionally, the battery pack has a plurality of sensors, each of which is for monitoring a characteristic of a distinct battery block. The battery pack has a processor that generates a fault flag for transmission to a circuit external to the battery container on occurrence of a critical fault and that transmits an identifying characteristic such as a battery serial number. Various mechanisms are provided for receiving rider input in order to direct steering of the transporter. These include a rotatable grip for imparting rotary motion to a rotation sensor, a thumb-activated rotation sensor and a palm-activated sensor, each disposed on the handlebar of the transporter.

Abstract: A regenerator for a thermal cycle engine and methods for its manufacture. The regenerator has a random network of fibers formed to fill a specified volume and a material for cross-linking the fibers at points of close contact between fibers of the network. A method for manufacturing a regenerator has steps of providing a length of knitted metal tape and wrapping a plurality of layers of the tape in an annular spiral.

Abstract: Improvements to a motorized balancing personal transporter. An intelligent battery has a battery container sealed against moisture and a plurality of battery blocks housed within the battery container. Additionally, the battery pack has a plurality of sensors, each of which is for monitoring a characteristic of a distinct battery block. The battery pack has a processor that generates a fault flag for transmission to a circuit external to the battery container on occurrence of a critical fault and that transmits an identifying characteristic such as a battery serial number. Various mechanisms are provided for receiving rider input in order to direct steering of the vehicle. These include a rotatable grip for imparting rotary motion to a rotation sensor, a thumb-activated rotation sensor and a palm-activated sensor, each disposed on the handlebar of the vehicle.

Abstract: Systems and methods for controlling a device are disclosed. In one embodiment, the systems and methods allow for the control of a human transport device such that the human transport device remains in an upright position regardless of the surface being traversed. The systems and methods may include a plurality of operational modes where each mode has different characteristics. Additionally, systems and method for locating a center of gravity of a device are disclosed.