초록 ▼

A manhole cover assembly comprises a base frame, the base frame comprising a base body and a base flange extending laterally outward from the base body. The assembly further comprises a top frame, the top frame comprising a top body disposed annularly about at least a portion of the base body, a top

A manhole cover assembly comprises a base frame, the base frame comprising a base body and a base flange extending laterally outward from the base body. The assembly further comprises a top frame, the top frame comprising a top body disposed annularly about at least a portion of the base body, a top flange extending laterally outward from the top body, and a lip extending laterally inward from the top body.

대표청구항 ▼

1. A manhole cover assembly, comprising: a base frame comprising: a base body configured to engage a pavement structure; anda base flange extending laterally outward from the base body; anda top frame comprising: a top body disposed annularly about at least a portion of the base body and engaging th

1. A manhole cover assembly, comprising: a base frame comprising: a base body configured to engage a pavement structure; anda base flange extending laterally outward from the base body; anda top frame comprising: a top body disposed annularly about at least a portion of the base body and engaging the base flange;a top flange extending laterally outward from the top body; anda lip extending laterally inward from the top body. 2. The assembly of claim 1, further comprising a gasket disposed about the base body. 3. The assembly of claim 2, wherein the gasket is disposed between an inner surface of the top body and an outer surface of the base body; and wherein the gasket sealingly engages the inner surface of the top body and the outer surface of the base body. 4. The assembly of claim 1, further comprising a cover received within the top frame proximate the lip. 5. The assembly of claim 1, wherein the base body and the top body are substantially annular. 6. The assembly of claim 5, wherein the base body defines an upper end and a lower end, the upper end defining an upper outer diameter, the lower end defining a lower outer diameter greater than the upper outer diameter. 7. The assembly of claim 6, wherein the base flange extends from the base body proximate the lower end. 8. The assembly of claim 6, wherein the top frame defines an upper end and a lower end, the upper end defining an upper inner diameter, the lower end defining a lower inner diameter greater than the upper inner diameter. 9. The assembly of claim 8, wherein the upper inner diameter of the top frame is greater than the upper outer diameter of the base frame; and wherein the lower inner diameter of the top frame is greater than the lower outer diameter of the base frame. 10. A manhole cover assembly, comprising: a pavement structure;a base frame comprising: a base body engaging the pavement structure; anda base flange extending laterally outward from the base body; anda top frame disposed in the pavement structure, the top frame comprising: a top body disposed annularly about at least a portion of the base body and engaging the base flange;a top flange extending laterally outward from the top body; anda lip extending laterally inward from the top body. 11. The assembly of claim 10, wherein the top body directly engages the pavement structure. 12. The assembly of claim 10, further comprising a manhole structure configured to support the base frame. 13. The assembly of claim 12, wherein the base flange defines a plurality of holes, the base flange being coupled to the manhole structure through the plurality of holes. 14. The assembly of claim 10, wherein the top frame is positioned in an inclined orientation relative to the base frame; and wherein the top flange defines an incline angle relative to the base flange. 15. The assembly of claim 14, wherein the incline angle is less than or equal to approximately 7°. 16. The assembly of claim 14, wherein the top body defines a lower end, the lower end engaging the base flange when the top frame is in the inclined orientation. 17. The assembly of claim 14, wherein a gasket is disposed between an inner surface of the top body and an outer surface of the base body; and wherein the top frame sealingly engages a portion of the gasket when the top frame is in the inclined orientation. 18. A method of installing a manhole cover assembly, comprising: providing a base frame, the base frame comprising a base body and a base flange extending laterally outward from the base body;coupling the base flange to a manhole structure;providing a top frame, the top frame comprising a top body and a top flange extending laterally outward from the top body;positioning the top body annularly about the base body;engaging the base flange with a lower end of the top body; andpouring a pavement structure about the top frame and the base body. 19. The method of claim 18, further comprising positioning the top frame in an inclined orientation relative to the base frame. 20. The method of claim 18, further comprising compressing a gasket between an inner surface of the top body and an outer surface of the base body.