US 6,070,679 AGranted

Powered utility cart having engagement adapters

AssigneeLindbergh Manufacturing, Inc.

InventorsDavid W. Berg, Joseph D. Berg, Dennis R. Johnson

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Abstract

The present inventive device generally allows a user to easily engage and push or pull heavy and unwieldy object(s), most notably a line of nested shopping carts, effectively and without undue strain. The cart is designed specifically with universal utility in mind. The power is supplied by either an electrically driven motor or internal combustion engine. Power is transmitted to a transaxle with belts or an electric motor electronically controlled. A simple forward/reverse control via throttle handles causes cart movement and steering is achieved through dual rear castors. The front of the cart contains a receiver that allows easy attachment for a multitude of attachments for a variety of uses. A square tube fitment with a quick release device lets the cart be configured for different markets and easy field change. One such attachment is a shopping cart adapter, which attaches to the cart through the receiver connection. It has two quick connect devices that attach to the rear of most available shopping carts. It has a center pivot that facilitates steering and positioning one or several carts.

Claims7

Dependent claims

A powered apparatus for moving heavy loads, comprising:

a housing having a front end and a rear end, power supply enclosed within the housing, a drive means powered by the power supply, means for driving the powered apparatus forward driven by the drive means, propulsion controls and a receiver connection interface having a quick release connection which receives attachments, the quick release connection being interfaced with the front end of the housing, the powered apparatus further comprising a shopping cart adapter releasably connected to the quick release connection, the shopping cart adapter comprising a tongue which directly releasably engages the quick release connection, the tongue having a first end connected to the quick release connection and a second end extending forward from the housing, an intermediate plate pivotally connected to the tongue, the intermediate plate being directly connected to the second end of the tongue and extending forward from the housing and the tongue, the plate being capable of pivoting from side to side on the tongue, and a cross bar mounted horizontally on the intermediate plate, the cross bar being constructed and arranged such as to allow engagement with the legs of a shopping cart, the powered apparatus further comprising adjustable quick connect devices which are mounted on the cross bar and are arranged and configured such as to allow engagement with, and quick release of, the legs of a shopping cart, wherein the adjustable quick connect devices are slidably mounted on the cross bar and comprise a hook-like pivoting connecting arm, a non-pivoting connecting arm and a spring connected to the pivoting connecting arm and the non-pivoting connecting arm, biasing the arms toward one another.

Dependencies are inferred from the claim text.