Patents
US 7770250 B2: Flared leg precast concrete bridge system
- Granted
- 2010-08-10
- Filed
- 2008-01-22 application 12009730
- Type
- Utility · 22 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A concrete building system includes a set of parallel spaced apart strip footers and one or more precast concrete sections supported by the footers in a predetermined alignment. Each precast concrete section has a top slab integrally connected to a pair of equally flared legs. Each leg depends from an end of the top slab at an effective flare angle to form a corner. The precast section includes haunch sections formed between the top slab and each leg resulting in a corner thickness greater than the uniform thickness of the angled leg to which it is integrally formed and the top member. The length of the effective span of each section varies between 60 and 90 percent of the distance between the bottom-of-leg span. The sections can be used to construct bridges, culverts, underground storage units, fluid detention units and dam structures.
Source: PVGPATDIS, file of 2026-04-10 (ipg100810.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| County Materials Corporation 1 patents | US company or organization | Marathon, WI | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Glennon J. Boresi | Union, MO | 1 | PVGPATDIS, file of 2026-04-10 | |
| Steven R. Michels | Libertyville, IL | 3 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E01F | Additional work, such as equipping roads or the construction of platforms, helicopter landing stages, signs, snow fences, or the like | E01F5/005 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2010-01-20 | Assignment Assignment of assignor's interest | ATEC LIQUIDATIONS, INC. signed 2009-12-22 | COUNTY MATERIALS CORPORATION MARATHON, WI | 23815/903 | ECORSEXC, file of 2026-09-25 |
| 2008-03-25 | Assignment Assignment of assignor's interest | BORESI, GLENNON J. signed 2008-03-10 MICHELS, STEVEN signed 2008-03-17 | EGYPTIAN CONCRETE CO. SALEM, IL | 20698/804 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.