초록 ▼

The present application provides a cover assembly having a frame and a cover removably connected to the frame. The cover is sealed to the frame by a sealing device, and the cover is removably connected to the frame by fasteners without interfering with the seal to prevent leakage through the area ar

The present application provides a cover assembly having a frame and a cover removably connected to the frame. The cover is sealed to the frame by a sealing device, and the cover is removably connected to the frame by fasteners without interfering with the seal to prevent leakage through the area around the fasteners. The frame and cover each also have a plurality of alignment indicators that are aligned with one another to assist an operator in securing the cover to the frame.

대표청구항 ▼

1. A cover assembly comprising: a frame including: a body having an upper surface, a lower surface, an outer surface, and an inner surface defining a through passage; anda lip extending inward from the inner surface around a circumference of the inner surface, the lip having a main body portion exte

1. A cover assembly comprising: a frame including: a body having an upper surface, a lower surface, an outer surface, and an inner surface defining a through passage; anda lip extending inward from the inner surface around a circumference of the inner surface, the lip having a main body portion extending inward from the inner surface, a plurality of circumferentially spaced lobes extending inward from the main body portion, and a circumferential groove that extends around the main body portion and inward with the plurality of circumferentially spaced lobes thereby forming securement areas on the main body portion of the lip between the circumferential groove and the inner surface of the body for receiving fasteners;a sealing device disposed within the groove; anda cover configured to be removably connected to the frame, wherein a lower surface of the cover is configured to abut the upper surface of the lip and seal to the frame via the sealing device,wherein the cover is configured to be removably connected to the frame without interfering with the seal. 2. The cover assembly according to claim 1, wherein the lip includes a plurality of circumferentially spaced openings in the securement areas. 3. The cover assembly according to claim 1, wherein the cover includes a plurality of circumferentially spaced openings extending therethrough and the lip includes a plurality of circumferentially spaced openings in the upper surface, and wherein the plurality of circumferentially spaced openings in the cover and the lip are configured to be aligned. 4. The cover assembly according to claim 3, further including a plurality of fasteners, wherein one of the plurality of fasteners is configured to extend through each of the openings in the cover and into one of the openings in the lip to secure the cover to the frame. 5. The cover assembly according to claim 3, wherein the body includes a plurality of alignment indicators on its upper surface each aligned with one of the plurality of openings in the lip, wherein the cover includes a plurality of alignment indicators on its upper surface each aligned with one of the openings in the cover, and wherein each of the alignment indicators on the cover is configured to be aligned with one of the alignment indicators on the body to align the openings in the cover with the openings in the lip. 6. The cover assembly according to claim 1, wherein the lip is perpendicular to the inner surface of the body and spaced below the upper surface of the body such that when the cover abuts the lip, an upper surface of the cover is substantially flush with the upper surface of the body. 7. The cover assembly according to claim 1, wherein the cover includes one or more studs extending from the lower surface for attaching a monitoring/detection device. 8. The cover assembly according to claim 1, wherein the frame further includes a flange extending around the outer surface of the body, the flange having one or more slots for anchoring the frame to a manhole. 9. The cover assembly according to claim 1, wherein the cover includes a depression in the upper surface and the assembly further includes a pick bar secured to the upper surface of the cover above the depression, and wherein the depression/pick bar form an area for receiving a tool to allow a user to remove the cover from the frame. 10. The cover assembly according to claim 1, wherein the body includes a plurality of alignment indicators on its upper surface and the cover includes a plurality of alignment indicators on its upper surface, and wherein each of the alignment indicators on the cover is configured to be aligned with one of the alignment indicators on the body. 11. A cover assembly comprising: a frame including: a body having an upper surface with a plurality of circumferentially spaced body alignment indicators, a lower surface, an outer surface, and an inner surface defining a through passage; anda lip including a main body portion extending inward from the inner surface around a circumference of the inner surface, a plurality of circumferentially spaced lobes extending inward from the main body portion, a circumferential groove that extends around the main body portion and inward with the plurality of circumferentially spaced lobes, and a plurality of circumferentially spaced openings between the circumferential groove and the inner surface of the body that are respectively aligned with one of the plurality of circumferentially spaced body alignment indicators; anda cover configured to be removably connected to the frame, the cover having an upper surface with a plurality of circumferentially spaced cover alignment indicators, a lower surface configured to abut the upper surface of the lip, and a plurality of circumferentially spaced openings respectively aligned with one of the plurality of circumferentially spaced cover alignment indicators and extending through the cover,wherein each of the cover alignment indicators is configured to be aligned with one of the body alignment indicators to align the openings in the cover with the openings in the lip. 12. The cover assembly according to claim 11, further including a plurality of fasteners, wherein one of the plurality of fasteners is configured to be received in each of the openings in the cover when aligned with the one of the openings in the lip to removably connect the cover to the frame. 13. The cover assembly according to claim 11, wherein the frame further includes a flange extending around the outer surface of the body, the flange having one or more slots for anchoring the frame to a manhole. 14. The cover assembly according to claim 11, wherein the lip includes a plurality of inward extending lobes and the cover includes a plurality of corresponding portions that are configured to mate with the lobes when the alignment indicators are aligned. 15. A cover assembly comprising: a frame including: a body having an upper surface with a plurality of circumferentially spaced body alignment indicators, a lower surface, an outer surface, and an inner surface defining a through passage; anda lip extending inward from the inner surface around a circumference of the inner surface, the lip having a main body portion extending inward from the inner surface, a plurality of circumferentially spaced lobes extending inward from the main body portion, and a circumferential groove that extends around the main body portion and inward with the plurality of circumferentially spaced lobes thereby forming securement areas on the main body portion of the lip between the circumferential groove and the inner surface of the body for receiving fasteners;a sealing device disposed within the groove; anda cover configured to be removably connected to the frame, the cover having an upper surface with a plurality of circumferentially spaced cover alignment indicators and a lower surface configured to abut the upper surface of the lip,wherein each of the alignment indicators on the cover is configured to be aligned with one of the alignment indicators on the body.