US 11,717,899 B2
Lock bolt collar removal tool
Avery C. Alby, Renton, WA (US); and Wyatt J. Lofftus, Renton, WA (US)
Assigned to The Boeing Company, Chicago, IL (US)
Filed by THE BOEING COMPANY, Chicago, IL (US)
Filed on Aug. 9, 2017, as Appl. No. 15/672,471.
Prior Publication US 2019/0047063 A1, Feb. 14, 2019
Int. Cl. B23D 29/00 (2006.01); B26B 17/00 (2006.01); B23D 15/14 (2006.01); B64F 5/40 (2017.01)
CPC B23D 29/007 (2013.01) [B26B 17/003 (2013.01); B23D 15/14 (2013.01); B64F 5/40 (2017.01)] 20 Claims
OG exemplary drawing
 
1. A blade assembly for cutting a member which is secured to and surrounds a bolt member, comprising:
a first blade including a first cutting edge, the first cutting edge aligned with a first cutting plane, the first cutting plane extends in a first direction from the first cutting edge;
a second blade including a second cutting edge aligned with a second cutting plane which extends in a second direction from the second cutting edge;
a third blade including a third cutting edge aligned with a third cutting plane which extends in the second direction from the third cutting edge, wherein the second cutting plane and the third cutting plane are parallel to one another, wherein:
the second blade and the third blade are disposed in a fixed position such that the second blade and the third blade are stationary;
the first cutting edge is spaced apart from the second and third cutting edges;
the second and third cutting edges are spaced apart from one another;
the first cutting plane extends between the second and third cutting planes;
with the first cutting edge, the second cutting edge and the third cutting edge in a first position, the member, which surrounds the bolt member, is positionable between the first cutting edge, the second cutting edge, and the third cutting edge, wherein the first cutting plane aligns with a central longitudinal axis of the bolt member such that the central longitudinal axis of the bolt member extends within and along the first cutting plane; and
wherein the first blade is movable to a second position relative to the fixed position of the second blade and the third blade, in which the first blade travels on an arc to the second position which causes the first cutting edge, the second cutting edge, and the third cutting edge to cut the member around the bolt member into three pieces, and the second cutting edge and the third cutting edge are angled relative to each other to move the pieces away from the bolt member when the first blade moves to the second position.