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US 7,452,158 B1Granted
Infill for bollard footing hole
AssigneeThe Hong Kong Polytechnic University
InventorKin Wai Michael Siu
Life of this patent
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Abstract
The invention relates to an infill which can be inserted into a bollard footing hole. The infill is designed such that it allows a bollard to be fit over it, and the infill fits within a footing hole. Methods of covering a footing hole are also bought.
Claims10
A footing hole infill comprising
- a plate inside said infill having
- a key hole on said plate;
- and
- a cap having a key hole positioned thereon and having a non-slip means;
- wherein the diameter of the infill is smaller than a corresponding bollard.
2 more elements
A bollard system, comprising
- a removable infill having an external diameter smaller than the internal diameter of the bollard;
- a removable bollard having an external diameter smaller than a footing hole, but the removable bollard has an internal diameter larger than the external diameter of said removable infill;
- and a footing hole.
A method of covering a footing hole comprising the steps of
- lifting a bollard out of a footing hole;
- lifting an infill from said footing hole;
- rotating said infill such that the infill's cap is on the opposite side from when it was inside said footing hole;
- and
- reinserting said infill,
- wherein reinstating said infill into said footing hole proceeds until the cap of said infill is equal level with the footing hole.
3 more elements
Dependencies are inferred from the claim text.