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| Number | Title | Issue Date |
| 6470640 | Reinforced shrinkage compensating concrete slab structure A reinforced concrete building structure comprises a shrinkage compensating concrete slab having a plurality of deformed reinforcing bars embedded therein, the bars being restricted to a peripheral portion of the slab which surrounds the centroid of the s... | 10/29/2002 |
| 6401416 | Vee joint for use in filling shrinkage compensating concrete floor joints A vee joint having a first flange hingedly connected to a second flange at an angle. A trough is formed between the first flange and the second flange and is used to retain joint filler within a joint interval in a concrete floor slab. The flanges are mov... | 06/11/2002 |
| 5643509 | Method for forming a roller compacted concrete industrial floor slab A roller compacted concrete industrial floor slab is formed by surface finishing the slab by using a separate thin topping bonded to a roughened surface of the RCC, or by manipulating the RCC surface itself by working into its surface a finish mixture of ... | 07/01/1997 |
| 5487307 | Method and apparatus for testing concrete expansion A method and apparatus is disclosed for measuring on-site expansive volumetric changes in hardened, shrinkage-compensated concrete samples. The sample is disposed in a cylindrical container having a strain gauge for measuring hoop stress which is correlat... | 01/30/1996 |
| 4748748 | Method and apparatus for measuring height variations on a floor surface This invention relates to apparatus and methods for measuring height variations on a floor surface to test for floor flatness sufficient for automated high level warehousing applications. An inclinometer mounted on a trolley set to follow a reference line... | 06/07/1988 |
| 4689892 | Apparatus and method of measuring surface heights This invention relates to apparatus and methods for measuring height variations on a floor surface to test for floor flatness sufficient for automated high level warehousing applications. An inclinometer mounted on a trolley set to follow a reference line... | 09/01/1987 |
| 4471530 | Apparatus and method of measuring surface heights An improved apparatus and method for measuring surface heights is disclosed which yields a true height profile of the surface being measured. The apparatus and method is adapted to provide a straight and preferably level reference datum adjacent to the me... | 09/18/1984 |
