Abstract: A roller ball assembly is provided. The assembly includes a primary roller ball supported by a support element that is composed of a superhard material. The assembly includes a cup defining a cavity within which the support element is positioned. A cap is coupled with the cup and positioned to retain the primary roller ball within the cavity. Also, a cup is disclosed for supporting roller halls. Additionally, disclosed are system and apparatus incorporating the assembly, as well as to methods of making and using the same.

Abstract: A foldable vehicle seat includes a seat base having a seat support frame, a seat back extending from the seat base, and a foldable section connected to the seat back. The folded section has a folded and unfolded configuration, and comprises a hinge mechanism with a pivot point, a first support, a second support, and a top surface configured to store luggage thereon. The first support is connected to the hinge mechanism and is rotatable about the pivot point. Likewise, the second support is connected to the hinge mechanism and is rotatable about the pivot point. The first and second supports contain first and second magnets, respectively, which are configured to retain the foldable section in the folded configuration.

Abstract: Systems and methods to generate a playlist based on content meta data. In one embodiment, a method includes: receiving user-defined parameters; generating a playlist comprising a plurality of content portions, the generating comprising selecting the plurality of content portions from a data repository based on the user-defined parameters and further based on meta data for content stored in the data repository; and providing the playlist for display on a user device.

Abstract: A multi-position door hinge is coupled to a vehicle and includes a first hinge having a pin support, a pin, and a key. The multi-position door hinge additionally includes a second hinge having a receiving cam, a key way, and a cam groove. The multi-position door hinge is formed by coupling the first hinge to the second hinge by positioning the pin in the receiving cam with the key positioned in the key way.

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to mount a wheel in multiple positions on a vehicle body. An example apparatus includes a bracket having a first post extending therefrom and an aperture spaced from the first post, the first post to slidably receive one of a plurality of fastener apertures in a vehicle wheel, the aperture of the bracket to receive a fastener extending through a respective other one of the fastener apertures to hold the wheel to a vehicle body in at least two different positions.

Abstract: Tire carriers for use with vehicles are disclosed herein. An example tire carrier, includes a frame including telescopically coupled tubes; and a lock carried by one of the tubes, the lock structured to mechanically engage another one of the tubes to fix the tubes relative to one another to prevent the tire carrier from inadvertently moving toward a lowered position, the lock structured to reduce the mechanical engagement with the other one of the tubes to enable the tire carrier to be moved toward a raised position.

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to mount a wheel in multiple positions on a vehicle body. An example apparatus includes a bracket having a first post extending therefrom and an aperture spaced from the first post, the first post to slidably receive one of a plurality of fastener apertures in a vehicle wheel, the aperture of the bracket to receive a fastener extending through a respective other one of the fastener apertures to hold the wheel to a vehicle body in at least two different positions.

Abstract: Tire carriers for vehicles and related methods are disclosed. An example tire carrier includes a hinge to be pivotally coupled to a vehicle. A support arm has a first end to be pivotally coupled to the hinge and a second end to receive a tire. A jack including a beam and running gear. The beam to be pivotally coupled to the hinge and the running gear to be coupled to the second end of the support arm.

Abstract: Height-adjustable spare tire carriers having Chebyshev linkages are described. An example spare tire carrier is to be coupled to a vehicle. The spare tire carrier includes a Chebyshev linkage having an output shaft to carry a spare tire of the vehicle. The output shaft is movable between a raised position and a lowered position.

Abstract: Systems and methods to generate a playlist based on content meta data. In one embodiment, a method includes: receiving user-defined parameters; generating a playlist comprising a plurality of content portions, the generating comprising selecting the plurality of content portions from a data repository based on the user-defined parameters and further based on meta data for content stored in the data repository; and providing the playlist for display on a user device.

Abstract: A tire carrier and vehicle lift apparatus is disclosed. A scissor jack includes a first bracket fixed to the jack, the first bracket to removably mount the jack to a vehicle. The apparatus also includes a second bracket fixed to the jack opposite the first bracket, the second bracket to hold a wheel for the vehicle, wherein operation of the jack while the bracket is mounted to the vehicle is to lower the wheel toward the ground.

Abstract: Tire carriers for vehicles and related methods are disclosed. An example tire carrier includes a hinge to be pivotally coupled to a vehicle. A support arm has a first end to be pivotally coupled to the hinge and a second end to receive a tire. A jack including a beam and running gear. The beam to be pivotally coupled to the hinge and the running gear to be coupled to the second end of the support arm.

Abstract: Height-adjustable spare tire carriers having Chebyshev linkages are described. An example spare tire carrier is to be coupled to a vehicle. The spare tire carrier includes a Chebyshev linkage having an output shaft to carry a spare tire of the vehicle. The output shaft is movable between a raised position and a lowered position.

Abstract: Tire carriers for use with vehicles are disclosed herein. An example tire carrier, includes a frame including telescopically coupled tubes; and a lock carried by one of the tubes, the lock structured to mechanically engage another one of the tubes to fix the tubes relative to one another to prevent the tire carrier from inadvertently moving toward a lowered position, the lock structured to reduce the mechanical engagement with the other one of the tubes to enable the tire carrier to be moved toward a raised position.

Abstract: A multi-position door hinge is coupled to a vehicle and includes a first hinge having a pin support, a pin, and a key. The multi-position door hinge additionally includes a second hinge having a receiving cam, a key way, and a cam groove. The multi-position door hinge is formed by coupling the first hinge to the second hinge by positioning the pin in the receiving cam with the key positioned in the key way.

Abstract: Systems and methods to generate a playlist based on content meta data. In one embodiment, a method includes: receiving user-defined parameters; generating a playlist comprising a plurality of content portions, the generating comprising selecting the plurality of content portions from a data repository based on the user-defined parameters and further based on meta data for content stored in the data repository; and providing the playlist for display on a user device.

Abstract: A peritoneal dialysis machine including a membrane pump and a touch screen display that includes a mode-indicating portion and an operation-descriptive portion, the mode-indicating portion having a plurality of touch sensitive indicia each indicating one of a plurality of modes in which the machine can operate, the display being used to keep a patient continually informed of which one mode of at least three operating modes the machine is operating in, as the operation-descriptive portion changes to display details of a specific operation being carried out within the one mode, the indicia for each of the three operating modes always being visible to the patient while the machine is operating, the operating mode being selected by the patient touching one of the indicia on the screen.

Abstract: A peritoneal dialysis system includes: an enclosure including an actuation surface and a door; a stepper motor housed by the enclosure; a pump head and a solid pump piston structurally linking the pump head to the stepper motor; and a disposable unit accepted by the enclosure, the disposable unit including a flexible membrane attached to a rigid piece, the actuation surface of the enclosure and the disposable unit so configured and arranged that when the stepper motor turns and consequently translates the solid pump piston and the pump head towards the door, the pump head physically contacts and stretches the membrane from a relaxed position to a stretched position, and when the stepper motor turns and consequently translates the solid pump piston and the pump head away from the door, the membrane follows the pump head and transitions from the stretched position to the relaxed position.

Abstract: Systems and methods to generate a playlist based on content meta data. In one embodiment, a method includes: receiving user-defined parameters; generating a playlist comprising a plurality of content portions, the generating comprising selecting the plurality of content portions from a data repository based on the user-defined parameters and further based on meta data for content stored in the data repository; and providing the playlist for display on a user device.

Abstract: A result for a task may be provided in response to receiving a request from, for example, a user for the result. The request specifies a desired accuracy level for the result. The accuracy of the result is determined using the individual accuracies of one or more persons that have selected the result. Each person's individual accuracy is determined based on results for prior tasks previously performed by that person. The person's individual accuracy is proportional to the number of that person's prior results that are with a consensus of other persons that have performed the same prior task. The result is provided if the accuracy of the result is equal to or greater than the desired accuracy level.