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US 11,890,641 B2Granted
Masking member, and method for coating pipe inner circumferential surface using same
AssigneeMitsubishi Heavy Industries, Ltd.
InventorTetsuya Katayama
Life of this patent
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Abstract
A masking member used to coat a pipe inner circumferential surface of a vent stringer, wherein the masking member comprises: a sponge for blocking a pipe internal space of the vent stringer, the sponge having an outer circumferential surface capable of contacting the pipe inner circumferential surface; and a support member for supporting the sponge.
Claims9
A masking member used to coat a pipe inner peripheral surface of a hollow pipe, comprising:
- a sponge that closes a pipe inner space of the hollow pipe, and has an outer peripheral surface which comes into contact with the pipe inner peripheral surface;
- and
- a support member that supports the sponge,
- wherein the sponge includes a first sponge layer and a second sponge layer having meshes coarser than those of the first sponge layer sequentially from a side closer to a coating portion in a pipe axis direction of the hollow pipe.
1 more element
Dependencies are inferred from the claim text.