US 11,724,408 B2
Utility knife
Grant T. Squiers, Cudahy, WI (US); Steven W. Hyma, Milwaukee, WI (US); Christopher S. Hoppe, Midvale, UT (US); Michael Stearns, Milwaukee, WI (US); and Joseph M. DeBaker, Greenfield, WI (US)
Assigned to Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed by Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed on Nov. 22, 2022, as Appl. No. 18/58,047.
Application 18/058,047 is a continuation of application No. 16/189,696, filed on Nov. 13, 2018.
Application 16/189,696 is a continuation of application No. 15/083,698, filed on Mar. 29, 2016, granted, now 10,144,139.
Claims priority of provisional application 62/222,918, filed on Sep. 24, 2015.
Claims priority of provisional application 62/180,238, filed on Jun. 16, 2015.
Claims priority of provisional application 62/141,966, filed on Apr. 2, 2015.
Prior Publication US 2023/0085954 A1, Mar. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B26B 5/00 (2006.01); B26B 1/04 (2006.01); B26B 1/02 (2006.01)
CPC B26B 5/003 (2013.01) [B26B 1/046 (2013.01); B26B 5/00 (2013.01); B26B 1/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A utility knife comprising:
a handle that includes a first longitudinal side, a second longitudinal side opposite the first longitudinal side, a top side, a bottom side, and a slot that extends through the bottom side, the slot between the first and second longitudinal sides, the handle further including a first cam surface;
a blade;
a first blade holder, the blade removably coupled to the first blade holder, the first blade holder pivotal with respect to the handle between an extended position where the blade is exposed and configured to cut a work-piece and a folded position where the blade is within the slot of the handle; and
a spare blade holder including a recess that receives a spare blade, the spare blade holder pivotal with respect to the handle between an open position where the spare blade can be removed from the spare blade holder and a closed position where the recess is within the slot of the handle to inhibit removal of the spare blade from the spare blade holder, the spare blade holder further including a second cam surface, wherein the second cam surface of the spare blade holder engages the first cam surface of the handle when the spare blade holder is in the closed position to bias the spare blade holder away from the first blade holder.