Trolley chassis system

Abstract

A lightweight four-wheeled trolley chassis system for use in transport of daily mail and packages. Four rectangular blocks are placed on top of four wheel mounting plates to attach wheels from under to trolley chassis. Rectangular blocks help prevent breakages within wheels by absorbing daily shocks that occur as trolley travels onto different surfaces such as concrete, asphalt, brick, carpet, and tile. Trolley securely holds onto United States Postal Service (USPS) daily mail containers on top with no risk of sliding or falling during travel. Trolley handle rotates to a vertical position during operating condition and folds horizontally onto chassis for storage in non operating condition. A wooden support bar is attached on one end of chassis that spins and locks to allow vertical storage of trolley in small spaces. The trolley chassis uses no complex machined parts allowing workers to replace or tighten screws using standard tools.

Dependencies are inferred from the claim text.