Closing member and exhaust structure for combustion apparatus
AssigneeNoritz Corporation
InventorMasaki Sugatani
Life of this patent
Estimating the term…
Abstract
A closing member includes an annular portion and a flange portion. The annular portion is provided with a through hole and is in contact with an outer circumferential surface of an exhaust tube in at least a part of the through hole. The flange portion extends from an outer circumferential surface of the annular portion toward an outer side and is larger in outer diameter than an exhaust pipe. The flange portion contacts a tip end portion of the exhaust pipe on outside of a building so as to close a gap between the exhaust pipe and the exhaust tube. The flange portion is formed to protrude toward an outer side such that an entire circumference of the flange portion extends beyond an outer circumferential surface of the tip end portion of the exhaust pipe.
Claims7
A closing member for closing a gap, on an outside of a building, between an exhaust pipe extending from inside to outside of the building and an exhaust tube inserted into the exhaust pipe, the closing member comprising:
- an annular portion provided with a through hole and being in contact with an outer circumferential surface of the exhaust tube in at least a part of the through hole;
- and
- a flange portion extending from an outer circumferential surface of the annular portion toward an outer side and being larger in outer diameter than the exhaust pipe, the flange portion contacting a tip end portion of the exhaust pipe on outside of the building so as to close a gap between the exhaust pipe and the exhaust tube,
- the flange portion being formed to protrude toward the outer side such that an entire circumference of the flange portion extends beyond an outer circumferential surface of the tip end portion of the exhaust pipe.
Dependencies are inferred from the claim text.