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US 12,269,148 B2Granted
Piston ring installation tool
AssigneeCummins Inc.
InventorBradley T. Oswalt
Life of this patent
Estimating the term…
Abstract
Piston assembly installation tools are disclosed, each installation tool configured for installation of the piston assembly into an opposed-piston engine from a crankcase area of the engine. The installation tools comprise cutouts to account for cylinder block main journal saddles located on either side of a cylinder bore where the piston assembly may be installed.
Claims16
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.
3 more elements
An apparatus for installing piston rings, the apparatus comprising:
- a cylindrical body defining a longitudinal axis and comprising a sidewall, the sidewall having a thickness and defining an opening through the cylindrical body, the cylindrical body including:
- a first planar cutout portion parallel to the longitudinal axis and defining a first window so that the thickness of the sidewall tapers along the first planar cutout portion to the first window;
- and
- a second planar cutout portion opposite of the first planar cutout portion, the second planar cutout portion parallel to the longitudinal axis and defining a second window so that the thickness of the sidewall tapers along the first planar cutout portion to the second window.
1 more element
Dependencies are inferred from the claim text.