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US 2017/0254204 A1Published application
Faceted fastener driver bumper with cooling slots
AssigneeIllinois Tool Works Inc.
InventorsNathan Thomas Mina, James Louis Kuhnwald
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Abstract
A bumper sized to fit a cylinder of a fastener driving tool includes a side profile of the bumper defined by a plurality of flat regions and a plurality of convex regions around an outer periphery of the bumper. Included in the bumper are an inner peripheral surface and an outer peripheral surface. The flat and convex regions are disposed on the outer peripheral surface of the bumper in an alternating pattern.
Claims20
A fastener-driving tool bumper comprising a body having an inner peripheral surface and an outer peripheral surface,
- wherein the inner peripheral surface defines a central opening,
- wherein a cooling slot defined in the body is in fluid communication with the central opening and terminates within the body.
A fastener-driving tool comprising:
- a cylinder;
- a piston slidably disposed in the cylinder;
- a driver blade attached to the piston;
- and
- a bumper at least partially in the cylinder and comprising a body having an inner peripheral surface and an outer peripheral surface,
- wherein the inner peripheral surface defines a central opening,
- wherein a cooling slot defined in the body is in fluid communication with the central opening and terminates within the body.
4 more elements
Dependencies are inferred from the claim text.