Abstract:
A marker for burying adjacent an underground structure such that a location of the underground structure can be identified from above a ground surface. The marker comprises a housing, a gimbal beacon retention device pivotally disposed within the housing, and a beacon device carried by the gimbal beacon retention device. The gimbal beacon retention device is structured and operable to orient the beacon device in a desired orientation relative to a ground surface regardless of the orientation of the housing relative to the ground surface.
Abstract:
A device is used to sever an electrical power cable for the transmission of high voltage. The cable has an insulation sheath, a screening layer and a conductive layer. The device includes a first frame having a first cutting blade mounted thereon, a second frame, and a measuring device mounted on the second frame. The first cutting blade is moveable relative to the measuring device. The measuring device is capable of measuring an electrical load on the electrical power cable and capable of terminating the severing of the electrical power cable. A method of using the device is also provided.
Abstract:
A utility vehicle having a first axle that is coupled to first and second wheels, an internal combustion engine that drives a first output shaft, an electric drive motor that drives a second output shaft, and a torque transfer device coupled to the first axle and the first and second output shafts. The torque transfer device is operable in a first mode to receive torque from the first output shaft only and output a motive force to the first axle, a second mode to receive torque from the second output shaft only and output the motive force, a third mode to receive torque from the first output shaft and the second output shaft simultaneously and output the motive force, and a fourth mode to receive torque from the first output shaft and output a drive force to the second output shaft cause the electrical drive motor to generate electrical power.
Abstract:
An induction motor system for a reel assembly of a turf maintenance vehicle includes a frame and a turf maintenance implement assembly defining a reel assembly movably connected to the frame. The reel assembly includes multiple reel blades defining a reel blade assembly. The reel blade assembly is rotatably connected to a structure of the reel assembly. Multiple induction coils are connected to the structure of the reel assembly and energized to create a magnetic field through the reel blades of the reel blade assembly thereby inducing rotation of the reel blade assembly.
Abstract:
A rotor system has a rotor (302), an axis of rotation about which the rotor (302) may be rotated, a linkage system (310) having a first adjustable length portion (210) and a second adjustable length portion (212), wherein the second adjustable length portion (212) is configured to provide a relatively finer adjustment of an overall effective length of the linkage system (310) as compared to the first adjustable length portion (210) and wherein the rotor (302) is configured to rotate about the axis in response to changing the overall effective length of the linkage system (310).
Abstract:
A utility vehicle (100) includes a first axle, a second axle, an electric motor (131), an internal combustion engine (102), and a torque transfer device (110). The electric motor (131) drives the first axle in a first direction and a second direction at different times. The internal combustion (102) engine drives a transmission output shaft (111) in one direction. The torque transfer device (110) selectively drives the second axle in the first direction or in the second direction, in response to rotation of the transmission output shaft (111) in the one direction. Said torque transfer device (110) hence provides three modes: forward, reverse and neutral. An additional independent claim is included for a utility vehicle comprising a mechanical throttle linkage.
Abstract:
A utility vehicle includes a first axle, a second axle, an electric motor, an internal combustion engine, and a torque transfer device. The first axle is coupled to first and second wheels. The second axle is coupled to third and fourth wheels. The electric motor drives the first axle in a first direction and a second direction at different times. The internal combustion engine drives a transmission output shaft in one direction. The torque transfer device selectively drives the second axle in the first direction in response to rotation of the transmission output shaft in the one direction. The torque transfer device also selectively drives the second axle in the second direction in response to rotation of the transmission output shaft in the one direction.
Abstract:
A system and method to control hovering flight of a rotary aircraft. The system including a lateral speed hold loop, a longitudinal loop, a vertical control loop, and a directional loop. The method includes defining a first flight envelope having a first groundspeed threshold; defining a second flight envelope having a second groundspeed threshold, the second flight envelope being defined within the first envelope; engaging a hover hold with a control law hover hold architecture as the aircraft enters the first flight envelope; and engaging a position hold with a control law position hold architecture as the aircraft enters the second flight envelope.
Abstract:
An abrasive blasting system includes an air subsystem being adapted to provide pressurized air, a fluid subsystem being adapted to provide fluid, a mixer being adapted to mix the fluid with the pressurized air, and a media subsystem being adapted to provide abrasive media. The method includes pressurizing the air, mixing the fluid with the air, thereby changing the relative humidity of the air, and blasting a surface of a structure with abrasive media mixed with the fluid and the pressurized air.