US 12,390,849 B2
Expansion tool
Peter J. Davies, Milwaukee, WI (US); and Alex R. Kuhls, Brookfield, WI (US)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Oct. 9, 2023, as Appl. No. 18/482,992.
Application 18/482,992 is a continuation of application No. 17/716,773, filed on Apr. 8, 2022, granted, now 11,779,990.
Claims priority of provisional application 63/303,732, filed on Jan. 27, 2022.
Claims priority of provisional application 63/172,874, filed on Apr. 9, 2021.
Prior Publication US 2024/0033805 A1, Feb. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B21D 39/20 (2006.01); B21D 37/04 (2006.01); B21D 37/18 (2006.01); B25F 5/00 (2006.01)
CPC B21D 39/20 (2013.01) [B21D 37/04 (2013.01); B21D 37/18 (2013.01); B25F 5/001 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An expansion tool, comprising:
a housing;
a collar rotatably coupled to the housing, the collar including a plurality of slots;
a plurality of jaws, each jaw having a projection received in a corresponding one of the plurality of slots such that the jaws are coupled for co-rotation with the collar;
a mandrel moveable relative to the housing between a retracted position and an extended position, the mandrel engageable with the jaws to expand the jaws in response to movement of the mandrel to the extended position;
a cone received within the plurality of jaws and engageable with inner surfaces of the plurality of jaws, wherein the mandrel is configured to engage the cone to move the cone with the mandrel to expand the jaws as the mandrel moves toward the extended position; and
a rotation mechanism configured to incrementally rotate the collar.