Reinforcing ring for a plastic fitting and plastic fitting...

Pipe joints or couplings – Screw – Attached thread bushing

Reexamination Certificate

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Details

C285S290200, C285S291100

Reexamination Certificate

active

07597363

ABSTRACT:
A reinforcing and a plastic fitting incorporating such a reinforcing ring are disclosed. The reinforcing ring and plastic fitting have particular utility with respect to fire sprinkler heads in buildings. The reinforcing ring has a single starter thread which is integrally formed with a guide portion which guides a male part to be axially in line with the female fitting.

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