Fire rated cleanout cover assemblies
AssigneeReliance Worldwide Corporation
InventorsVirgil O'Neil, Jeffrey Eric Hamilton, Ryan Jeffrey Miller
Life of this patent
Estimating the term…
Abstract
Fire rated cleanout covers that restore and maintain a fire-rating of a constructed wall assembly. The fire rated cleanout covers are attached directly to cleanout tees to eliminate the need to secure a separate base component to a wall. Intumescent material is pre-incorporated with the fire rated cleanout covers prior to installation of the fire rated cleanout covers. As such, the intumescent material is carried with the fire rated cleanout cover when the fire rated cleanout cover is in use. The fire rated cleanout covers allow an installer to reuse the fire rated cleanout covers after maintenance or cleaning without reapplying the intumescent material to restore the fire rating of the wall.
Claims23
A fire rated cleanout cover assembly for covering a cleanout access opening comprising:
- a cover having a front side and a rear side, the cover defining an opening for receiving a fastener, the fastener securing the fire rated cleanout cover assembly to a cleanout plug of a cleanout tee and mounting the cover externally on an outer surface of a fire rated wall structure over the cleanout access opening;
- and intumescent material pre-incorporated with the cover prior to installation of the cover over the cleanout access opening.
A method for assembling a fire rated cleanout cover assembly, comprising:
- affixing intumescent material to a cover of the fire rated cleanout cover assembly prior to installation of the fire rated cleanout cover assembly;
- securing the fire rated cleanout cover assembly to a cleanout plug of a cleanout tee;
- and
- mounting the cover externally on an outer surface of a fire rated wall structure over the cleanout access opening.
A method for assembling a fire rated cleanout cover assembly, the fire rated cleanout cover assembly including a cover having intumescent material pre-incorporated with the cover and a constraint plate, the method comprising:
- securing the fire rated cleanout cover assembly to a cleanout plug of a cleanout tee and mounting the cover externally on an outer surface of a wall structure over a cleanout access opening such that the intumescent material surrounds a perimeter of the cleanout access opening, the intumescent material being adapted to expand upon exposure to heat to seal the cleanout access opening;
- and
- constraining the intumescent material between the cover and the constraint plate during expansion of the intumescent material such that the intumescent material expands radially.
Dependencies are inferred from the claim text.