Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 6341456 | Long-span in-situ concrete structures and method for constructing the same A long-span structure formed in-situ and extending between supporting structures includes at least two form supports extending between the supporting structures. Each end of the form support includes a bearing plate coupled to the adjacent supporting stru... | 01/29/2002 |
| 5927346 | Concrete pipes and methods for the manufacture thereof A concrete pipe and methods for forming the same are presented by this invention. The pipe includes an inner and outer sleeve separated by a spacer ring which creates a void therebetween. Concrete is poured within this void to solidify the pipe structure.... | 07/27/1999 |
| 5553430 | Method and apparatus for erecting building structures A method and apparatus for erecting building structures is presented. A plurality of wall panels are interconnected with each other in an array by column connectors interposed therebetween. Wall caps are then placed upon top surface portions of the wall p... | 09/10/1996 |
| 5535565 | Containment structure and method of making same A containment structure and a method for making such structure requires the implementation of a plurality of a minimum of building elements. A plurality of panels are interconnected by connector columns in stacked relationship to generate a dual walled sh... | 07/16/1996 |
| 5533221 | Method and apparatus for bridge construction A method and apparatus for building bridges from one location to another, and in which the construction activity takes place primarily at such terminal locations. Forms are assembled at one of the locations, such forms establishing the characteristics of ... | 07/09/1996 |
