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US 6,461,111 B1Granted
Tapered polygon coupling
AssigneeIngersoll-Rand Company
InventorsRonald L. Haugen, Robert King, Jeff Schmidt
Life of this patent
Estimating the term…
Abstract
A tapered polygon coupling for an impeller and pinion. The pinion has a tapered bore having a polygonal cross-section. The impeller includes a corresponding tapered polygon plug configured to be placed in the bore of the pinion. A fastener is provided for securing the impeller to the pinion. The fastener passes through a passage in the plug of the impeller. The plug of the impeller is split so that when the fastener is inserted into the passage the plug expands to contact the bore and create an interference fit between the pinion and the impeller.
Claims9
An impeller and pinion assembly comprising:
- a pinion including a tapered bore having a polygonal shaped cross-section;
- an impeller including a tapered plug having a polygonal shaped cross-section, the plug configured to be received into the bore of the pinion;
- a fastener for securing the impeller to the pinion, the fastener adapted to be inserted into a passage in the plug of the impeller;
- wherein the plug of the impeller is split so that when the fastener is inserted into the passage the plug expands against the side wall of the bore thereby creating an interference fit between the pinion and the impeller.
1 more element
Dependencies are inferred from the claim text.