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13214 results about "Gear drive" patented technology

System, method and computer program product for forming a reconfigurable cavity and an expandable shoe last and for constructing a shoe

The present invention is an exemplary embodiment of the present invention is directed to a system, method and computer program product for creating a three-dimensionally reconfigurable cavity. The system can include a container that is configurable to create a three dimensional cavity. The system can be operative to form a footwear last in the cavity. The last can be formed from a plastic-like material. The system can include a blow molding apparatus having at least one directional deflector. The container can be capsule, hemispherical, cylindrical, or spherical-shaped. The system can include a container having holes to receive rods. The system can include an array of rods. The rods can be movable through the container. The system can further include rods that are threaded; gear-driven; coupled to a belt; coupled to a partial belt; or belt-driven. The cavity can be formed by an inner end of the rods. If more than one rod occupies a single point of the cavity, then only one rod participates in forming the cavity and other rods will not participate. Participating rods can be selected according to an optimizing module. The software module can determine an intersection of a rod with a digitized cluster of points representing a 3 dimensional surface. A method of forming a footwear last from a collapsible and expandable last is described.

Adjustable Bolster Swing Legs for Mounting and Aligning and Reorienting Crawlers for Slipform Paving Machines

A paving machine which is configured to move in a paving direction for spreading, leveling and finishing concrete into a form having a generally upwardly exposed, finished concrete surface and terminating in lateral concrete sides. The paving machine has a main frame, including a center module, bolsters laterally movably connected to respective lateral sides of the center module for changing a spacing between the bolsters, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column secured to the swing leg proximate a free end thereof. A worm gear drive between the jacking column and the crawler track permits rotational movements of the crawler track and the jacking column about an upright axis. A hinge bracket is interposed between each swing leg and an associated surface of the bolsters and includes a fixed, upright pivot shaft that pivotally engages the swing leg to enable pivotal movements of the swing leg about an upright axis in a substantially horizontal plane. The hinge bracket further includes a pivot pin that is laterally spaced from and fixed in relation to the pivot shaft. A length-adjustable holder capable of being held at a fixed length has a first end pivotally engaging the pivot pin on the hinge bracket and a second end that pivotally engages the swing leg. The holder permits pivotal motions of the swing leg about the hinge pin when it is in its length-adjustable configuration and prevents substantially any motion of the swing leg when the holder is in its fixed-length configuration. A feedback loop cooperates with angular position transducers and automatically keeps the crawler tracks oriented in the paving direction of the machine when the swing legs move in a horizontal plane relative to a remainder of the paving machine. The paving machine can be reconfigured between its paving orientation and a road transport orientation by activating the crawlers to move the swing legs and the crawlers into a narrowed transport configuration.

Automatic speed change mechanism for dual-motor clutch-free blade electric vehicle

The invention discloses an automatic speed change mechanism for a dual-motor clutch-free blade electric vehicle. The automatic speed change mechanism comprises a first input shaft, a second input shaft and an output shaft which are arranged in parallel. A first-gear driving gear, a first synchronizer and a third-gear driving gear are arranged on the first input shaft. A second-gear driving gear, a second synchronizer and a fourth-gear driving gear are arranged on the second input shaft. A first-gear driven gear meshed with the first-gear driving gear, a second-gear driven gear meshed with the second-gear driving gear, a third-gear driven gear meshed with the third-gear driving gear and a fourth-gear driven gear meshed with the fourth-gear driving gear are arranged on the output shaft. The automatic speed change mechanism removes a clutch, the structure of the whole mechanism is simplified, and the manufacturing cost is low. By means of dual-motor driving and controlling the synchronizers and driving motors to achieve gear shifting without power failure, the power switching smoothness is good. When any driving motor breaks down, the other driving motor can work continuously to drive the vehicle to run. Thus, the system reliability is high.

Enclosed rotisserie with added convenience

Enclosed rotisserie with added convenience, including a countertop resting box enclosure housing a safety rear mounted heating element and a power rotated dual rod spit assembly. The gear driven spit assembly may be easily inserted and removed straight into and out of the enclosure without need for angling or coupling the assembly to a power drive socket. The spit assembly may also be mounted at various distances from the heating element to decrease cooking times. The open front of the enclosure is from time to time covered by an inclined glass panel door which may be opened in various ways to facilitate food insertion into and removal from the enclosure, and which may be easily removed for cleaning or other purposes. The embodiment's design makes efficient use of valuable counter space by recessing back and raising off the countertop its controls. A contained light as well as room light emitted through the inclined glass door illuminate the enclosure's interior to make the rotisserie cooking into a taste tempting show. Two countertop supported sizes for the embodiment are suggested, one for larger families and entertaining, and the other for small families and singles. Cooking times are decreased and manufacture simplified by the embodiment heating element remaining on constantly during the cooking process.
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