Adjustable height utility access device
AssigneePrecision Cover Systems, Inc.
InventorChris Sondrup
Life of this patent
Estimating the term…
Abstract
The present invention relates to a height adjustable utility access device, such as a manhole, which adjusts in height to allow a top of a cover to sit flush with the surrounding surface, such as a road. The device has a cover which covers access to the utility; a frame coupled over the utility; and an adjuster, coupled between the cover and the frame, for adjusting the height of the cover relative to the frame. The adjuster can include an adaptor ring on the frame, and an extension ring on the adaptor ring. The extension ring can have tabs which selectively engage a plurality of steps on the adaptor ring. Alternatively, the steps can be formed directly in the frame. Alternatively, first and second rings can be disposed between the frame and cover. The rings can have meshing steps.
Claims7
A height adjustable utility access device, comprising:
- a) a frame, configured to be secured over a utility, having an opening therethrough;
- b) an adaptor ring, disposable on the frame;
- c) a plurality of steps, formed on the adaptor ring at different elevations;
- d) an extension ring, selectively disposable on the adaptor ring;
- e) at least one tab, attached to the extension ring, and selectively engagable with at least one of the plurality of steps to selectively elevate the extension ring with respect to the adaptor ring and the frame;
- f) a cover, removably disposed on the extension ring;
- and
- g) a skirt, extending from the extension ring and extendable into the adaptor ring, having a length sized to extend to at least a lowest step in the adaptor ring to cover cavities above the plurality of steps when the extension ring is disposed on the adaptor ring.
Dependencies are inferred from the claim text.