Stackable riser configuration

Details Stackable riser configuration Stackable riser configuration

2005-04-12

2005-04-12

Glessner, Brian E. (Department: 3635)

Static structures (e.g., buildings)

With entrance for persons or objects in horizontal or...

C052S741100, C052S742140, C052S712000, C052S715000, C249S001000, C249S177000, C404S025000

Reexamination Certificate

active

06877281

ABSTRACT:
A riser section and cover is disclosed. The riser section has a smooth cylindrical sidewall surface, a removable anchor tab on the exterior surface and bosses and ribs on the inside of the sidewall. The riser sections are stackable. The cover has a channel end to removably connect to a riser section. The cover has stowable handles and posts extending from a bottom surface that define wells open at a top surface and which posts fit into the wells of another cover. A bracket is disclosed to releasably secure and position the cover with an attached riser section on a concrete form wall to hold the riser in place while concrete is poured into the form.

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