Flexible drain element

Pipe joints or couplings – U-type

Reexamination Certificate

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Details

C285S235000, C285S236000, C285S135100, C004S679000

Reexamination Certificate

active

07004508

ABSTRACT:
A flexible drain element is used in place of a trap and has a section that is flexible with a stiffness that is selected to make clearing blockages easy and expeditious.

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