US 12,220,794 B2
Friction ring plier
John Huang, Azusa, CA (US)
Assigned to Jackco Transnational Inc., Azusa, CA (US)
Filed by Jackco Transnational Inc., Azusa, CA (US)
Filed on Oct. 27, 2022, as Appl. No. 17/975,188.
Claims priority of provisional application 63/273,011, filed on Oct. 28, 2021.
Prior Publication US 2023/0137156 A1, May 4, 2023
Int. Cl. B25B 27/20 (2006.01)
CPC B25B 27/205 (2013.01) 21 Claims
OG exemplary drawing
 
1. A plier tool for expanding a friction ring having a first opposing end and a second opposing end, comprising:
a first arm including a distal portion comprising a first protrusion extending distally from a central axis and a first projection extending outwardly from the first protrusion away from the central axis, the first projection configured to engage the first opposing end of the friction ring; and
a second arm including a distal portion comprising a second protrusion extending distally from the central axis and a second projection extending outwardly from the second protrusion away from the central axis, the second projection configured to engage the second opposing end of the friction ring;
wherein the second arm is pivotably connected to the first arm to cause the distal portion of the first arm and the distal portion of the second arm to move away from each other and the central axis so as to expand the friction ring for installation or removal, and
wherein the first protrusion and the second protrusion each include a distal surface coplanar with each other, wherein the first protrusion includes a first angled surface extending between the distal surface of the first protrusion and an outermost tip of the first projection, and wherein the second protrusion includes a second angled surface extending between the distal surface of the second protrusion and an outermost tip of the second projection, each angled surface being configured to assist insertion into a gap between the first opposing end and the second opposing end of the friction ring received within an annular groove.