V-ribbed belts with spaced rib flank reinforcement and methods of making the same are disclosed. The V-ribbed belt comprises a compression section having at least one laterally spaced, longitudinally extending V-rib having first and second longitudinally extending flanks. The V-rib includes an elastomeric material having a dry coefficient of friction encapsulating a plurality of reinforcing bodies having a dry coefficient of friction that is less than that of the elastomeric material. The plurality of reinforcing bodies are arranged generally laterally within the V-rib such that at least a portion of the reinforcing bodies forms part of one or more of the first and second longitudinally extending flanks.

A seating assembly for a passenger aircraft. The seat system may include at least one passenger seat and a seat back tray assembly mounted onto the back of the passenger seat and movable between a first storage position and a second deployed position. The tray assembly may include (i) a tray having a first and second attachment arm mounted onto the tray for installing the tray onto the back of a seat system; (ii) a sliding mechanism installed on the first and second attachment arms adapted for providing movement between a first forward position and a second aft position to a seated passenger parallel to the first and second attachment arms; and (iii) an alignment mechanism attached to the sliding mechanism for maintaining the tray in a horizontally aligned relationship during the movement. The seat system may further include a PED holder adapted to hold a personal electronic device.

A seating assembly for a passenger aircraft. The seat system may include at least one passenger seat and a seat back tray assembly mounted onto the back of the passenger seat and movable between a first storage position and a second deployed position. The tray assembly may include (i) a tray having a first and second attachment arm mounted onto the tray for installing the tray onto the back of a seat system; (ii) a sliding mechanism installed on the first and second attachment arms adapted for providing movement between a first forward position and a second aft position to a seated passenger parallel to the first and second attachment arms; and (iii) an alignment mechanism attached to the sliding mechanism for maintaining the tray in a horizontally aligned relationship during the movement. The seat system may further include a PED holder adapted to hold a personal electronic device.

An elevator system includes a car and/or a counterweight connected to a belt having a plurality of ribs. The elevator system further has at least two deflecting elements over which the belt is guided and which each have a plurality of grooves. The grooves of at least one of the deflecting elements are configured with geometries that differ from the grooves of another of the deflecting elements. The belt has longitudinal ribs that cooperate with the grooves.

An elevator system includes a car and/or a counterweight connected to a belt having a plurality of ribs. The elevator system further has at least two deflecting elements over which the belt is guided and which each have a plurality of grooves. The grooves of at least one of the deflecting elements are configured with geometries that differ from the grooves of another of the deflecting elements. The belt has longitudinal ribs that cooperate with the grooves.

Technologies pertaining to a rotary electrical contact device are described herein. A rotary electrical contact device comprises a first sheave that is disposed about a first axis and a second sheave that rotates about the first axis or a second axis that is parallel to the first axis. The device further includes two planetary sheaves that revolve around the first and second sheaves, and a belt that makes contact with each of the sheaves, the belt comprising a co-wound inner helical coil and outer helical coil. As the first sheave rotates, the planetary sheaves revolve about the first and second sheaves and cause the belt to deform and roll along the second sheave. The belt makes rolling contact with the four sheaves. The belt is electrically conductive such that as the belt rolls along the sheaves, the belt maintains electrical contact between the first sheave and the second sheave.

Technologies pertaining to a rotary electrical contact device are described herein. A rotary electrical contact device comprises a first sheave that is disposed about a first axis and a second sheave that rotates about the first axis or a second axis that is parallel to the first axis. The device further includes two planetary sheaves that revolve around the first and second sheaves, and a belt that makes contact with each of the sheaves, the belt comprising a co-wound inner helical coil and outer helical coil. As the first sheave rotates, the planetary sheaves revolve about the first and second sheaves and cause the belt to deform and roll along the second sheave. The belt makes rolling contact with the four sheaves. The belt is electrically conductive such that as the belt rolls along the sheaves, the belt maintains electrical contact between the first sheave and the second sheave.

Technologies pertaining to a rotary electrical contact device are described herein. A rotary electrical contact device comprises a first sheave that is disposed about a first axis and a second sheave that rotates about the first axis or a second axis that is parallel to the first axis. The device further includes two planetary sheaves that revolve around the first and second sheaves, and a belt that makes contact with each of the sheaves, the belt having an aspect ratio great than 1:1. As the first sheave rotates, the planetary sheaves revolve about the first and second sheaves and cause the belt to deform and roll along the second sheave. The belt makes rolling contact with the four sheaves. The belt comprises electrically conductive components arranged such that as the belt rolls along the sheaves, the belt maintains electrical contact between the first sheave and the second sheave.

A seating assembly for a passenger aircraft. The seat system may include at least one passenger seat and a seat back tray assembly mounted onto the back of the passenger seat and movable between a first storage position and a second deployed position. The tray assembly may include (i) a tray having a first and second attachment arm mounted onto the tray for installing the tray onto the back of a seat system; (ii) a sliding mechanism installed on the first and second attachment arms adapted for providing movement between a first forward position and a second aft position to a seated passenger parallel to the first and second attachment arms; and (iii) an alignment mechanism attached to the sliding mechanism for maintaining the tray in a horizontally aligned relationship during the movement. The seat system may further include a PED holder adapted to hold a personal electronic device.

A seating assembly for a passenger aircraft. The seat system may include at least one passenger seat and a seat back tray assembly mounted onto the back of the passenger seat and movable between a first storage position and a second deployed position. The tray assembly may include (i) a tray having a first and second attachment arm mounted onto the tray for installing the tray onto the back of a seat system; (ii) a sliding mechanism installed on the first and second attachment arms adapted for providing movement between a first forward position and a second aft position to a seated passenger parallel to the first and second attachment arms; and (iii) an alignment mechanism attached to the sliding mechanism for maintaining the tray in a horizontally aligned relationship during the movement. The seat system may further include a PED holder adapted to hold a personal electronic device.