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US 6,546,680 B1Granted
Level transition device for portable buildings
AssigneeConnie Watts
InventorBruce D. Watts
Life of this patent
Estimating the term…
Abstract
The present invention comprises various combinations of 2″×4″, 2″×6″, 2″×8″, 2″×10″ and 2″×12″ members stacked on top of one another with one longitudinal edge of each member co-aligned. In this configuration, the non-aligned longitudinal edges form shallow steps which act as a ramp, allowing wheeled implements to easily transition form ground level to the floor level of the portable building.
Claims6
A portable building comprising:
- an enclosure;
- an opening in the enclosure;
- a sill disposed in the opening;
- a level transition device coupled to the sill, the level transition device comprising:
- a first board having cross-section dimensions of approximately 2″×4″ and cut to a predetermined length;
- a second board having cross-sectional dimensions of approximately 2″×6″ and cut to the predetermined length;
- a third board having cross-sectional dimensions of approximately 2″×10″ and cut to the predetermined length;
- a fourth board having cross-sectional dimensions of approximately 2″×12″ and cut to the predetermined length;
- wherein the first, second, third and fourth boards are stacked such that a longitudinal edge of each of said boards are substantially co-aligned;
- a first hole drilled through the first, second, third and fourth boards;
- a second hole drilled through the first, second, third and fourth boards;
- a first bolt disposed through the first hole;
- a first nut secured to the first bolt;
- a second bolt disposed through the second hole;
- and
- a second nut secured to the second bolt;
- whereby the first, second, third and fourth boards are held securely together.
14 more elements
Dependencies are inferred from the claim text.