Road structure – process – or apparatus – Process – Handling or treating preformed modular unit
Reexamination Certificate
2006-11-22
2008-09-02
Addie, Raymond W (Department: 3671)
Road structure, process, or apparatus
Process
Handling or treating preformed modular unit
C404S072000
Reexamination Certificate
active
07419327
ABSTRACT:
A method for fabricating and forming a continuous covered area, such as a sidewalk or patio, employing vertically interlocking tessellated components. One embodiment, termed PORTAPAVE™, achieves this interlocking via an array of uniquely configured two-sectioned pavers. Each paver has a first section of a first shape and a second section of a second shape impressed upon the first section and bonded together. In one embodiment, first sections of pavers are installed in a bottom layer to form a cavity between them having the same shape as the second section of a paver that is inverted onto the pavers of the bottom layer, thus providing a top layer. Each inverted paver in this top layer is fitted to interlock in that cavity formed between the un-inverted pavers in the bottom layer.
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Addie Raymond W
Baugher Jr. Earl H.
The United States of America as represented by the Secretary of
LandOfFree
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