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US 10,569,390 B2Granted
High torque polymer fittings
AssigneeEntegris, Inc.
InventorsJohn A. Leys, Michael Schleicher, Jeffrey J. McKenzie, Steven P. Kolbow
Life of this patent
Estimating the term…
Abstract
A high torque polymer fittings useful in fluid handling systems. The fittings are especially useful for fluid handling fittings having diameters of one inch or greater. Various embodiments of the fittings disclosed accommodate specialized wrenches for securing the fittings, the wrenches being used to tighten the fittings to a desired torque.
Claims3
A connector fitting for fluid handling comprising:
- a coupling leg defining a bore that extends therethrough, said coupling leg and said bore being concentric about a leg axis, said coupling leg including a neck portion, a shoulder portion extending distal to said neck portion, a threaded portion extending distal to said shoulder portion, and a nipple portion extending distal to said threaded portion, said neck portion including locking features extending radially outward therefrom, wherein the locking features include a flange extending radially outward from said neck portion and a plurality of partitions extending distally from said flange, said flange and said plurality of partitions cooperating to define a plurality of pockets;
- a locking ring that defines and is concentric about a locking ring axis, said locking ring including an inner surface that includes one or more tabs that project radially inward toward said locking ring axis, said one or more tabs being configured to mate within one or more of the plurality of pockets;
- and
- a nut threadably engaged with said threaded portion of the coupling leg,
- wherein said coupling leg and said nut are made of a melt processible resin.
2 more elements
Dependencies are inferred from the claim text.