US Patent 7143912 Customizing pack carrier on wheels

A customizing pack carrier having one or a combination of independently unique and novel components comprising a main frame assembled of elongated or planar members having fixed or height-adjustable pack retainers, a single-handed operating method for adjusting retainer height, a support base that manually or self-adjusts to the depth of the pack, a quasi-permanent height-adjustable handle, an outer layer on an extendible main frame that can function as an amusing accessory and as part of a strap-lifting apparatus, a concealable seat and inclinable main frame combination, an ergonomically designed removable or non-removable back support, and a detachable shoulder harness, is provided.