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US 7,503,588 B2Granted
Pipe nipple
AssigneeIllinois Tool Works Inc.
InventorsMartin J. Nilsen, Michael E. Ward, Robert E. Brunner, James M. Van Ingen
Life of this patent
Estimating the term…
Abstract
A pipe nipple has a bore therethrough, with an entrance chamber at one end of the bore having a larger diameter adjacent a drive configuration of narrower diameter for receiving a tool therein to rotate the nipple about its longitudinal axis. The exterior of the nipple has a surface formation as a stop against which a hose can be inserted over the nipple, and a threaded length for attaching the nipple to another device.
Claims12
A nipple comprising:
- a cylindrical body having an exterior surface, first and second ends and a longitudinal bore there through, said bore defined by an interior surface;
- said first end having a helical thread on said exterior surface;
- said second end having an outwardly extending enlargement spaced slightly inwardly from an outer edge of said second end, said outer edge having an uninterrupted, planar, continuous annular surface and defining a first diameter, and said enlargement being configured to receive a hose thereover;
- and
- said bore configured at said second end with an entrance chamber of comparatively larger diameter and an internal hexagonal drive configuration of comparatively narrower diameter, said entrance chamber extending inwardly from said outer edge of said second end to said internal drive configuration, said entrance chamber having a portion including a second diameter that is greater than said first diameter, said portion being circumferentially surrounded by said enlargement, said drive configuration being a shape in said interior surface for receiving and engaging a tool therein for axially rotating said nipple, said drive configuration disposed inwardly from said entrance chamber relative to said second end, said drive configuration having an entrance end adjacent said entrance chamber and extending within said bore toward said first end and terminating at a shoulder which is spaced away from said entrance end and farther within said bore against which the tool for rotating said nipple can rest, said shoulder located closer to said second end than said first end.
2 more elements
A pipe nipple for an automobile cooling system, said nipple comprising:
- a one-piece cylindrical body having an exterior surface, a first end having a thread on said exterior surface adapted for rotational engagement with threads of a cooling system component, a second end adapted to be received in a cooling system hose, said second end having an outwardly extending enlargement positioned inwardly from an outer edge of said second end, said outer edge having an uninterrupted, planar, continuous annular surface and defining a first diameter, and an axial bore extending through said body and defined by an interior surface;
- and
- said bore defining an entrance chamber at said second end and an internal hexagonal drive configuration provided in said interior surface between said entrance chamber and said first end, said internal drive configuration being hex-shaped in said interior surface for receiving and engaging a tool therein for rotating said nipple about the axis thereof, said entrance chamber being of larger diameter than said drive configuration, said entrance chamber extending inwardly from said outer edge of said second end to said internal drive configuration, said entrance chamber having a portion including a second diameter that is greater than said first diameter, said portion of said entrance chamber being circumferentially surrounded by said enlargement, and said bore including an angled shoulder transition between said entrance chamber and said hex of said internal drive configuration.
Dependencies are inferred from the claim text.