Cart with spring-loaded platform
First Claim
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1. A cart comprising:
- a base at least one post attached to said base;
at least one spring encircling at least one of said posts; and
a platform supported by said spring, wherein a load placed on said platform compresses said spring and said platform moves slidably along said post toward said base, and removal of all or part of said load from said platform allows said spring to expand, pushing said platform slidably along said post away from said base.
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Abstract
A cart with a spring-loaded platform presents material continually at the proper working height. The cart has a base supporting posts encased in springs. A platform rests upon the springs. The platform is at a height convenient for the worker. As materials are stacked upon the platform the springs compress and the platform moves toward the base distance equal to the height of the newly stacked item. Thus, the top of the stack remains at the height convenient for the worker. As material is removed from the stack the spring expands pushing the platform away from the base and presenting each new item in the stack at the convenient, desired height to the worker.
12 Citations
11 Claims
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1. A cart comprising:
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a base at least one post attached to said base;
at least one spring encircling at least one of said posts; and
a platform supported by said spring, wherein a load placed on said platform compresses said spring and said platform moves slidably along said post toward said base, and removal of all or part of said load from said platform allows said spring to expand, pushing said platform slidably along said post away from said base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification