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US 7,597,363 B2Granted
Reinforcing ring for a plastic fitting and plastic fitting incorporating a reinforcing ring
AssigneeIpex Inc.
InventorsRabih Hikmat, Robert Laflamme
Life of this patent
Estimating the term…
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.
Claims18
A reinforcing ring for a plastic fitting, comprising:
- a first tubular portion;
- a radial portion extending radially inwardly from a forward end of the tubular portion;
- a guide portion extending rearwardly from a radially-inner region of the radial portion;
- a starter thread extending radially inwardly from a rearward end of the guide portion;
- and
- wherein the reinforcing ring is stamped from a metal sheet;
- and
- wherein the starter thread is no more than 360° around the guide portion.
5 more elements
Dependencies are inferred from the claim text.