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| Number | Title | Issue Date |
| 7144200 | Innovative prestressed scaffolding system Disclosed herein is a support system that is temporarily placed below ground for preventing collapse of the excavated ground when a subway is constructed or a basement of a building is built. The excavated ground or load is supported by means of supporting members, ... | 12/05/2006 |
| 7025540 | Sheet pile An elongated element (1) having a cross-sectional shape permitting the element to be interlocked with adjacent elements, the element having a basic square shape with interlocking members (4,6,8) on at least three sides of the element, wherein the propo... | 04/11/2006 |
| 6786675 | Erosion control and bulkhead apparatus An erosion control method and apparatus provides multiple concrete bodies for erosion control that each include tubular hollow bore sections. Each section has front and rear openings that communicate with the hollow bore. Each body is an elongated tapered pile-like ... | 09/07/2004 |
| 6540445 | Concrete silt fence A concrete silt fence constructed of a plurality of very thin, steel reinforced concrete panels that are aligned side by side and fixed in a trench in the ground to form a fence. Each of the panels is constructed of reinforcing steel bars and concrete. Th... | 04/01/2003 |
| 6443666 | Reinforced concrete panel and method of manufacture A reinforced concrete panel is formed by embedding a stretched steel chain link mesh unit within concrete. The panel can be used to form a building or a flood dyke, or an earth reinforcing wall. The earth reinforcing wall is formed by digging a trench in ... | 09/03/2002 |
| 6409818 | Disposable water resistant foamed concrete cover for bulk salt The present invention is directed to a composition and method for forming an inexpensive, semi-permanent cured foamed cementitious cover layer over deicing salt which is stored outdoors in large bulk mounds or piles and a salt pile or mound covered with s... | 06/25/2002 |
| 6361247 | Erosion control and bulkhead apparatus An integral concrete body for erosion control includes three separate sections of differing configuration. The sections include a lower tapered section that is in the form of an elongated tapered pile-like member. The upper section of the concrete body is... | 03/26/2002 |
| 6328503 | Method for constructing an underground structure To construct an underground structure having smooth wall surfaces in a simple, safe and reliable way, plates (11,12) are buried in parallel, and soil and sand (G1) between the plates is removed. If the places where the plates are to be buried are loosened... | 12/11/2001 |
| 6227292 | Flexible sinker bar assemblies Apparatus for recovering logging tools and the like from a wellbore as part of a drilling operation such as for oil wells, irrigation systems and the like. The apparatus includes the use of a flexible connector member in the form of a flexible wire rope, ... | 05/08/2001 |
| 5911545 | Method for stabilizing and repair of docks and seawalls A method for stabilizing and repairing whereby components are mixed to form an expandable foam which is injected under pressure in an expanded state behind or into the backfill material of an existing sheetpile seawall. Upon expansion, the foam displaces ... | 06/15/1999 |
| 5409326 | Process for planting a row of cement piles on the bed of a river A process for planting a row of cement piles on the bed of a river includes the steps of (1) placing a vertical guide member of a U-shaped cross-section on the bed, the guide member including two parallel side plates having a width larger than that of the... | 04/25/1995 |
| 5385504 | Permanent ventilation seal A mine seal is provided in which two walls are constructed across the mine entry. One of the walls is constructed in layers. After a lower portion of the layered wall is erected, a first layer of gravel is provided between the walls. The gravel is then sa... | 01/31/1995 |
| 4776728 | Angulated retaining wall An angulated retaining wall comprised of a plurality of adjoining posts is disclosed for retaining a wall of material having gradual and/or abrupt changes in direction in its face. The retaining wall is comprised of corner-groove combinations wherein a co... | 10/11/1988 |
| 4707962 | Cascade wall structure A cascade wall structure is provided which is made up of two elements, namely, a generally rectangular member with end ribs and a curved panel having curved ends which interlock with curved surfaces on the ribs of the members for creating a variety of wal... | 11/24/1987 |
