IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0641989
(2003-08-14)
|
발명자
/ 주소 |
- Jurich,Mark J.
- Swartz,Rickey G.
- Reed,Jon R.
- Freeman,Eric C.
- Ott,Wolfgang
- Appelblom,Paul H.
- Jurich,Paul A.
|
출원인 / 주소 |
|
대리인 / 주소 |
Bever, Hoffman & Harms, LLP
|
인용정보 |
피인용 횟수 :
24 인용 특허 :
12 |
초록
▼
A concrete lid for an in-ground utilities box includes a plastic reinforcement structure filled with concrete. The plastic reinforcement structure includes one or more plastic sidewalls that protect the edges of the lid from damage. The upper and lower surfaces of the lid are exposed concrete (with
A concrete lid for an in-ground utilities box includes a plastic reinforcement structure filled with concrete. The plastic reinforcement structure includes one or more plastic sidewalls that protect the edges of the lid from damage. The upper and lower surfaces of the lid are exposed concrete (with the exception of the upper and lower edges of the one or more plastic sidewalls). The one or more plastic sidewalls laterally surround a plastic reinforcement grid, which is centrally located between the upper and lower edges of the one or more plastic sidewalls. The one or more plastic sidewalls can be integrally formed with the plastic reinforcement grid. The plastic reinforcement grid reinforces the concrete lid, eliminating the need for separate reinforcement material. Support struts can be used to support the plastic reinforcement grid while wet concrete is being poured into the plastic reinforcing structure.
대표청구항
▼
We claim: 1. A lid for an in-ground utilities box, comprising: a concrete core; one or more plastic sidewalls laterally surrounding the concrete core, the concrete core having at least an upper surface or a lower surface exposed through the one or more plastic sidewalls; a plastic reinforcement gri
We claim: 1. A lid for an in-ground utilities box, comprising: a concrete core; one or more plastic sidewalls laterally surrounding the concrete core, the concrete core having at least an upper surface or a lower surface exposed through the one or more plastic sidewalls; a plastic reinforcement grid coupled to and laterally surrounded by the one or more plastic sidewalls, wherein the one or more plastic sidewalls have an upper edge and a lower edge, and wherein the plastic reinforcement grid is coupled to the one or more plastic sidewalls about halfway between the upper edge and the lower edge. 2. The lid of claim 1, wherein the concrete core has both an upper surface exposed through the one or more plastic sidewalls, and a lower surface exposed through the one or more plastic sidewalls. 3. The lid of claim 1, further comprising a plastic reinforcement grid coupled to and laterally surrounded by the one or more plastic sidewalls. 4. The lid of claim 3, wherein the plastic reinforcement grid is located entirely within the concrete core, thereby reinforcing the concrete core. 5. The lid of claim 3 wherein the one or more plastic sidewalls and the reinforcement grid are a single integral unit. 6. The lid of claim 1, wherein the upper surface of the concrete core is exposed, wherein the upper surface is textured. 7. The lid of claim 1, wherein the one or more sidewalls exhibit a rolled edge at the upper surface of the concrete core. 8. The lid of claim 1, wherein the one or more sidewalls have a tapered cylindrical shape. 9. The lid of claim 1, further comprising nomenclature formed in the upper surface of the concrete core. 10. The lid of claim 1, wherein the one or more plastic sidewalls comprise polypropylene. 11. The lid of claim 3, further comprising a nameplate mounting structure coupled to the plastic reinforcement grid and embedded in the concrete core, wherein the nameplate mounting structure has one or more connector elements exposed at the upper surface of the concrete core. 12. The lid of claim 11, further comprising a nameplate coupled to the connector elements of the nameplate mounting structure. 13. The lid of claim 12, wherein the nameplate mounting structure and the nameplate are plastic. 14. The lid of claim 12, wherein the nameplate is substantially co-planar with the upper surface of the concrete core. 15. The lid of claim 11, wherein the nameplate mounting structure comprises: a platform having a flat surface, wherein the one or more connector elements are located on the flat surface; and one or more additional connector elements configured to connect the platform to the plastic reinforcement grid. 16. The lid of claim 1, further comprising one or more gussets formed in the one or more plastic sidewalls. 17. The lid of claim 1, wherein the one or more plastic sidewalls are formed by two or more plastic pieces. 18. The lid of claim 1, wherein the one or more plastic sidewalls have a rectangular shape. 19. A lid for an in-ground utilities box, comprising: a concrete core; one or more plastic sidewalls laterally surrounding the concrete core, the concrete core having at least an upper surface or a lower surface exposed through the one or more plastic sidewalls; a plastic reinforcement grid coupled to and laterally surrounded by the one or more plastic sidewalls; and one or more lift holes formed in the concrete core, wherein the one or more lift holes are sized and shaped to facilitate lifting of the lid. 20. The lid of claim 19, wherein the one or more lift holes extend entirely through the concrete core and the reinforcement grid. 21. The lid of claim 19, further comprising one or more lift rods coupled to the reinforcement grid, wherein the one or more lift holes expose the one or more lift rods from the upper surface of the concrete core. 22. The lid of claim 19, wherein the one or more lift rods are coupled to a lower surface of the reinforcement grid, whereby the reinforcement grid is located between the one or more lift rods and the upper surface of the concrete core. 23. A lid for an in-ground utilities box, comprising: a concrete core; one or more plastic sidewalls laterally surrounding the concrete core, the concrete core having at least an upper surface or a lower surface exposed through the one or more plastic sidewalls; a plastic reinforcement grid coupled to and laterally surrounded by the one or more plastic sidewalls; and one or more support struts extending from the plastic reinforcement grid to the upper surface of the concrete core. 24. The lid of claim 23, wherein the one or more support struts is formed integrally with the plastic reinforcement grid. 25. The lid of claim 24, wherein the one or more support struts are located near the center of the plastic reinforcement grid.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.