초록 ▼

A device prevents water from leaking into a manhole. The device includes a body having first and second portions that are integrally formed. The first portion extends along and above a periphery of the opening of the manhole and the second portion extends upwardly from the first portion and provide

A device prevents water from leaking into a manhole. The device includes a body having first and second portions that are integrally formed. The first portion extends along and above a periphery of the opening of the manhole and the second portion extends upwardly from the first portion and provides access to the opening of the manhole. Preferably, the first portion includes a downwardly extending lip disposed along an outer vertical surface of the manhole. In addition, a cap is positionable on the second portion to prevent water entering the manhole from the manhole's opening.

대표청구항 ▼

What is claimed is: 1. An apparatus comprising: a manhole having an upper opening within an upper horizontal surface and having an outer substantially vertical surface extending downwardly from the horizontal surface; at least one riser wherein the at least one riser is disposed above the opening a

What is claimed is: 1. An apparatus comprising: a manhole having an upper opening within an upper horizontal surface and having an outer substantially vertical surface extending downwardly from the horizontal surface; at least one riser wherein the at least one riser is disposed above the opening and includes a cavity substantially aligned with the opening in the manhole; a device comprising an integrally formed body of plastic material having a first portion extending along and above a periphery of the opening of the manhole and a second portion integrally formed with and extending upwardly from the first portion providing access to the opening wherein the first portion includes a downwardly extending lip, the downwardly extending lip extending below the opening of the manhole wherein the first portion with the lip extends in an overlying manner with respect to the upper horizontal surface and an upper portion of the outer substantially vertical surface of the manhole thereby preventing water from entering the manhole. 2. The apparatus of claim 1 and further comprising a cap positionable on the second portion of the device. 3. The apparatus of claim 2 wherein the cap is formed from a plastic material. 4. An apparatus comprising: a manhole having an opening for ingress and egress through an upper surface thereof; at least one riser wherein the at least one riser is disposed above the opening and includes a cavity substantially aligned with the opening in the manhole; a plate having an outer edge and an aperture wherein the plate is disposed on the upper surface of the manhole and below the at least one riser wherein the aperture aligns with the opening in the manhole and wherein the outer edge of the plate extends beyond the upper surface of the manhole; a first lip disposed about the plate wherein a distal edge of the first lip extends downwardly from the plate such that the distal edge of the first lip extends below the upper surface and about an upper portion of the exterior surface of the manhole such that the plate and lip overlie the opening and the upper portion of the exterior surface of the manhole; a chimney attached to and extending upwardly from the plate wherein the chimney is disposed about the aperture in the plate and wherein the chimney extends within the cavity of the riser for preventing water from entering the manhole and provides essentially the same ingress and egress as the opening; and wherein the plate, the lip and the chimney are constructed from plastic. 5. The apparatus of claim 4 wherein the plate, the lip and the chimney are of a unitary construction. 6. The apparatus of claim 4 and further comprising a cap wherein the cap is disposed on an upper edge of the chimney. 7. The apparatus of claim 6 wherein the cap further comprises a second lip extending downwardly therefrom wherein a distal edge of the second lip is disposed below the upper edge and about an exterior surface of the chimney. 8. The apparatus of claim 7 wherein the cap and the second lip are of a unitary construction. 9. The apparatus of claim 7 wherein the cap and the second lip are constructed from plastic. 10. The apparatus of claim 7 and further comprising a lifting structure attached to the cap. 11. The apparatus of claim 10 wherein the lifting structure comprises an eye screw. 12. An apparatus comprising: a manhole having an opening in an upper surface for providing access into the manhole; at least one riser disposed on the upper surface of the manhole where the at least one riser includes an internal cavity wherein the internal cavity is aligned with the opening; a device for preventing water from entering the manhole, the device comprising: a plate disposed between the upper surface of the manhole and the riser, the plate having an aperture substantially aligned with both the opening in the manhole and the internal cavity in the riser wherein a periphery of the plate extends beyond the upper surface of the manhole; a first lip extending downwardly from the plate wherein a lower edge of the lip is disposed below the upper surface and about an upper portion of the exterior surface of the manhole such that the plate and the lip overlie the upper surface and an upper portion of the exterior surface of the manhole; a chimney attached to the plate about the aperture wherein the chimney is disposed within the internal cavity within the at least one riser and provides essentially the same access into the manhole; a cap disposed on an upper edge of the chimney; and wherein the cap further comprises a second lip extending downwardly wherein a distal end of the second lip is disposed below the upper edge and about an outer surface of the chimney. 13. The apparatus of claim 12 wherein the plate, the first lip and the chimney are of a unitary construction. 14. The apparatus of claim 12 wherein the first lip is disposed about a peripheral edge of the plate. 15. The apparatus of claim 12 wherein the cap and the second lip are of a unitary construction. 16. The apparatus of claim 12 and further comprising a lifting structure attached to the cap. 17. The apparatus of claim 16 wherein the lifting structure comprises an eye screw. 18. A method of constructing a manhole structure which prevents water seepage into a manhole box of the manhole structure, the method comprising: disposing the manhole box in a selected position below ground level, the box having an upper surface having an opening providing access to the box; disposing an insert on the upper surface of the box, the insert having a plate having an aperture substantially aligned with the opening in the box and having a peripheral edge extending beyond the upper surface of the box wherein a first lip extends downwardly from the plate beyond and below the upper surface and about an upper portion of an external surface of the box such that a distal end of the first lip is disposed below the upper surface and the opening of the box and wherein the insert includes a chimney disposed about the aperture and extending upwardly from the plate and providing essentially the same access into the box; disposing at least one riser about the chimney of the insert wherein the riser is adjacent a top surface of the plate; disposing a cap about an upper edge of the chimney wherein the cap includes a second lip wherein a distal end of the second lip extends below the top surface and about an outer surface of the chimney; positioning a manhole cover frame on an upper surface of the riser; and positioning a manhole cover in the manhole frame. 19. The method of claim 18 and further comprising: attaching a lifting structure to the cap wherein the lifting structure aids in manipulating the position of the cap. 20. An apparatus comprising: a manhole having an opening for ingress and egress through an upper surface thereof; at least one riser wherein the at least one riser is disposed above the opening and includes a cavity substantially aligned with the opening in the manhole; a plate having an outer edge and an aperture wherein the plate is disposed on the upper surface of the manhole and below the at least one riser wherein the aperture aligns with the opening in the manhole and wherein the outer edge of the plate extends beyond the upper surface of the manhole; a first lip disposed about the plate wherein a distal edge of the first lip extends downwardly from the plate such that the distal edge of the first lip extends below the upper surface and about an upper portion of the exterior surface of the manhole such that the plate and lip overlie the opening and the upper portion of the exterior surface of the manhole; a chimney attached to and extending upwardly from the plate wherein the chimney is disposed about the aperture in the plate and wherein the chimney extends within the cavity of the riser for preventing water from entering the manhole and provides essentially the same ingress and egress as the opening; a cap disposed on the upper edge of the chimney, the cap comprising a second lip extending downwardly therefrom wherein a distal edge of the second lip is disposed below the upper edge and about an exterior surface of the chimney. 21. The apparatus of claim 20 wherein the cap and the second lip are of a unitary construction. 22. The apparatus of claim 20 wherein the cap and the second lip are constructed from plastic. 23. The apparatus of claim 20 and further comprising a lifting structure attached to the cap. 24. The apparatus of claim 20 wherein the lifting structure comprises an eye screw.