US 12,269,148 B2
Piston ring installation tool
Bradley T. Oswalt, Columbus, IN (US)
Assigned to Cummins Inc., Columbus, IN (US)
Filed by Cummins Inc., Columbus, IN (US)
Filed on Aug. 17, 2020, as Appl. No. 16/995,274.
Claims priority of provisional application 62/887,894, filed on Aug. 16, 2019.
Prior Publication US 2021/0046628 A1, Feb. 18, 2021
Int. Cl. B25B 27/12 (2006.01); F02B 75/28 (2006.01)
CPC B25B 27/12 (2013.01) [F02B 75/28 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus for installing piston rings, the apparatus comprising:
a self-supporting unitary body consisting of a single-piece of material;
the body comprising:
a sidewall with an inner surface having a continuous cylindrical portion and an outer surface, the sidewall defining an opening through the body;
at least one channel defined by the inner surface of the sidewall, the at least one channel extending longitudinally through the inner surface of the sidewall from a first end of the body to a second end of the body; and
a top portion surrounding the opening and extending outwardly beyond the sidewall, the top portion defining an indention configured to selectively receive a bumper.