PEX expansion tool

US11633775B2 · kind B2 · utility

Assignee

• Milwaukee Electric Tool Corporation · US

Inventors

• James Wekwert · Wauwatosa, US
• Jacob K. Lindsey · Milwaukee, US
• Peter J. Davies · Whitley, GB
• Justin Miller · Milwaukee, US
• Andrew J. Smith · Waukesha, US
• Troy C. Thorson · Cedarburg, US
• Ryan J. Denissen · Sussex, US
• John S. Scott · Brookfield, US

Key dates

• Filing date: Feb 20, 2020
• Grant date: Apr 25, 2023
• Expiry date: Aug 2, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2023/22
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

An expansion tool includes a housing, a motor supported within the housing, a mandrel, and a drive mechanism configured to convert a rotational input from the motor into translational movement of the mandrel. The drive mechanism includes a cam and a drive shaft coupled to the cam. The expansion tool further includes a frame including a hub and a neck extending from the hub and having an opening. A working element is coupled to the neck and has a plurality of jaws movable from a closed position toward an expanded position in response to movement of the mandrel from a retracted position toward an extended position. The mandrel extends through the opening to engage the jaws, and the drive shaft is rotatably supported by the hub.