Abstract: The back support for motorcycles was designed for use on any type of motorcycle on the market and, it will consist of two basic parts.The first part, called the base or main support, which can be made up of a single piece of steel or it could be 2 straight single steel bars, those of which will be attached to the right and left of the posterior motorcycle frame. Those sections will have, at the middle area over the right and left sides, an open track in order to receive the 2nd part.

Abstract: The food conveyor will be used on passenger planes with the capacity to hold over 30 people and will consist on a continuous conveyor-carrousel localized in the passenger compartment of the plane on each side of the aisle and suspended from the ceiling. It is controlled by one of the attendants from the kitchen area where the motor is located which makes the conveyor to circulate in order to carry and to deliver the feeding and empty trays, beverages, etc. around to the passengers thus making the attendant's work easier and also, allowing the aisle of the plane to be kept free, at all times, of any obstacle for the free movement of the passengers and the attendants.