US 11,731,249 B2
Pipe wrench
Matthew A. Lownik, Wauwatosa, WI (US); and Aaron S. Blumenthal, Shorewood, WI (US)
Assigned to Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed by Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed on Nov. 23, 2021, as Appl. No. 17/534,068.
Application 17/534,068 is a continuation of application No. 16/389,638, filed on Apr. 19, 2019, granted, now 11,207,762.
Application 16/389,638 is a continuation of application No. PCT/US2019/024955, filed on Mar. 29, 2019.
Claims priority of provisional application 62/793,780, filed on Jan. 17, 2019.
Claims priority of provisional application 62/650,685, filed on Mar. 30, 2018.
Prior Publication US 2022/0080560 A1, Mar. 17, 2022
Int. Cl. B25B 13/50 (2006.01); B25G 1/04 (2006.01)
CPC B25B 13/5058 (2013.01) [B25G 1/043 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A pipe wrench, comprising:
a head comprising an aperture;
a lower jaw coupled to the head, the lower jaw comprising a plurality of teeth that define a lower contact region;
an upper jaw partially extending through the aperture of the head, the upper jaw comprising a threaded portion and a plurality of teeth that define an upper contact region;
an actuator comprising threads engaged with the threaded portion of the upper jaw such that rotation of the actuator moves the upper contact region of the upper jaw relative to the lower contact region of the lower jaw;
a handle comprising a distal end portion adjacent the head and a proximal end portion opposite the distal end portion, the proximal end portion comprising a bore;
an extension handle comprising an elongated portion configured to slidably extend and retract through the bore;
an end cap coupled to a proximal end of the extension handle, the end cap including a hole extending through the end cap; and
a locking member, wherein the locking member selectively enables the extension or retraction of the extension handle relative to the handle such that when an operator actuates the locking member the extension handle is moveable and when the operator releases the locking member the extension handle is fixed;
wherein the extension handle further includes a distal end opposite the proximal end, the distal end including a tapering wedge and wherein the tapering wedge is coupled to the locking member by a rod extending through the extension handle.