Adjustable manhole cover support

Claim 2

A manhole cover support for vertically adjusting the level of an associated manhole cover in the opening of a manhole housing comprising, a manhole frame adapted to be fixed in the opening, a unitary peripheral adjustable ring disposed on the frame and having a peripheral seat formed in its interior peripheral surface for receiving the manhole cover, said ring being formed of peripheral segments, and means for connecting such segments together to form the unitary ring, said adjustment means being disposed in the bottom surface of the ring, said ring supporting said cover, and adjustment means disposed at least partially within the external surface of the ring and offset inwardly within the radial boundaries of the ring for vertically adjusting the height of the ring with respect to the frame.

Claim 3

The structure of claim 1 wherein an adjustable locking bracket detachably connects the frame and ring together.

Claim 4

The structure of claim 1 wherein said adjustment means is a plurality of set screws threadedly disposed in the bottom surface of the ring, said screws being vertically adjustable to selectively adjust the distance between the frame and ring and thus selectively adjust the height of the manhole cover with respect to the frame.

Claim 5

The structure of claim 3 wherein the set screws have releasable locking means for retaining the screws in final adjusted position.

Claim 6

The structure of claim 4 wherein said locking means is a covering of synthetic organic plastic.

Claim 7

The structure of claim 1 wherein said adjustment means comprises a ''''U'''' bracket and at least one spacer disposed within and at the bottom of the bracket, said bracket in coaction with the spacer being detachably positioned on the ring between the frame and the ring to selectively adjust the vertical distance therebetween and thus adjust the height of the manhole cover with respect to the frame.

Claim 8

A manhole cover support for vertically adjusting the level of an associated manhole cover in the opening of a manhole housing comprising, a manhole frame adapted to be fixed in the opening, a unitary peripheral manhole adjusting ring disposed on the frame and having a peripheral seat formed in its interior peripheral surface for receiving the manhole cover, and adjustment means disposed between the frame and the ring for vertically adjusting the height of the ring with respect to the frame, said ring containing a plurality of stEpped notches formed in the lower edge of the ring, and said adjustment means including a plurality of stepped inserts formed for selective insertion respectively in said notches for adjusting the vertical distance between the frame and the ring and thus selectively adjust the height of the manhole cover with respect to the frame.

Claim 9

A manhole cover support for vertically adjusting the level of an associated manhole cover in the opening of a manhole housing comprising, a manhole frame adapted to be fixed in the opening, a unitary peripheral manhole adjusting ring disposed on the frame and having a peripheral seat formed in its interior peripheral surface for receiving the manhole cover, and adjustment means disposed between the frame and the ring for vertically adjusting the height of the ring with respect to the frame, said ring containing a plurality of stEpped notches formed in the lower edge of the ring, and said adjustment means including a plurality of stepped inserts formed for selective insertion respectively in said notches for adjusting the vertical distance between the frame and the ring and thus selectively adjust the height of the manhole cover with respect to the frame.

Claim 10

A manhole cover support for vertically adjusting the level of an associated manhole cover in the opening of a manhole housing comprising, a manhole frame adapted to be fixed in the opening, a unitary peripheral manhole adjusting ring disposed on the frame and having a peripheral seat formed in its interior peripheral surface for receiving the manhole cover, and adjustment means disposed between the frame and the ring for vertically adjusting the height of the ring with respect to the frame, said ring being formed of peripheral segments, means for connecting such segments together to form the unitary ring, said ring containing a plurality of stepped notches formed in the lower edge of the ring, and said adjustment means including a plurality of stepped inserts formed for selective insertion respectively in said notches for adjusting the vertical distance between the frame and the ring and thus selectively adjust the height of the manhole cover with respect to the frame.

Claim 11

A manhole cover support for vertically adjusting the level of an associated manhole cover in the opening of a manhole housing comprising, a manhole frame adapted to be fixed in the opening, a unitary peripheral manhole adjusting ring disposed on the frame and having a peripheral seat formed in its interior peripheral surface for receiving the manhole cover, and adjustment means disposed between the frame and the ring for vertically adjusting the height of the ring with respect to the frame, said ring being formed of peripheral segments, means for connecting such segments together to form the unitary ring, said ring containing a plurality of stepped notches formed in the lower edge of the ring, and said adjustment means including a plurality of stepped inserts formed for selective insertion respectively in said notches for adjusting the vertical distance between the frame and the ring and thus selectively adjust the height of the manhole cover with respect to the frame.

Claim 12

A manhole cover support for vertically adjusting the level of an associated manhole cover in the opening of a manhole housing comprising, a manhole frame adapted to be fixed in the opening, a unitary peripheral adjustable ring disposed on the frame and having a peripheral seat formed in its interior peripheral surface for receiving the manhole cover, said ring supporting said cover, and adjustment means disposed at least partially within the external surface of the ring and offset inwardly within the radial boundaries of the ring for vertically adjusting the height of the ring with respect to the frame, said adjustment means comprising a ''''U'''' bracket and at least one spacer disposed within and at the bottom of the bracket, said bracket being detachably positioned on the ring between the frame and the ring to selectively adjust the vertical distance therebetween and thus adjust the height of the manhole cover with respect to the frame.

Claim 13

A manhole cover support for vertically adjusting the level of an associated manhole cover in the opening of a manhole housing comprising, a manhole frame adapted to be fixed in the opening, a unitary peripheral adjustable ring disposed on the frame and having a peripheral seat formed in its interior peripheral surface for receiving the manhole cover, said ring supporting said cover, and adjustment means disposed at least partially within the external surface of the ring and offset inwardly within the radial boundaries of the ring for vertically adjusting the height of the ring with respect to the frame, said adjustment means comprising a ''''U'''' bracket and at least one spacer disposed within and at the bottom of the bracket, said bracket being detachably positioned on the ring between the frame and the ring to selectively adjust the vertical distance therebetween and thus adjust the height of the manhole cover with respect to the frame.