Patent ID: 11939526
Assignee: SUNCOKE TECHNOLOGY AND DEVELOPMENT LLC
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B  F  Y | IPC B  C  F

Claim 0:
1. A method of sealing a vent stack, the method comprising:
providing a vent stack lid including a first lid portion and a second lid portion spaced apart from the first lid portion, such that there is a space between the first and second lid portions when the first and second lid portions are in a closed position, wherein the vent stack lid includes a first side configured to be in contact with an operation fluid and a second side opposite the first side;
positioning a flexible, heat-resistant material at the space between the first and second lid portions; and
positioning a rigid, heat-resistant material adjacent to the flexible material at the second side, such that, in operation, gas is inhibited from traversing the space between the first and second lid portions, wherein, when the first and second lid portions are in the closed position, the rigid material is disposed at the second side of the vent stack lid over (i) the space between the first and second lid portions, (ii) at least a portion of the first lid portion, and (iii) at least a portion of the second lid portion.