Ingersoll-Rand Company

Joseph Constantine Bouboulis

Joshua Odell Johnson

Patrick Sean Livingston

Gregory P Albert

Ryan Scott Amend

Douglas Edward Souls

Douglas Eliot Pyles

James Francis Bouchard

Dominic Leonard Power

Power tool housing shells that matably attach to each other and define an interior cavity that is sized and configured to encase at least a motor associated with a power train for a power tool. Each housing shell is a substantially rigid molded shell body. Each housing shell inner surface includes at least one overmold motor mount member of a resilient material directly, integrally attached to an inner surface of the respective housing shell.

Power tools with housings having integral resilient motor mounts

In one illustrative embodiment, a grinder may comprise an arbor configured to rotate about a first axis and to support a grinding wheel for rotation therewith, a gear surrounding a first portion of the arbor and having a slip fit with the first portion of arbor, a motor configured to drive rotation of a drive train including the gear, a collar surrounding a second portion of the arbor and having an interference fit with the second portion of the arbor such that the collar is constrained for rotation with the arbor about the first axis, and at least one spring disposed between the gear and the collar and configured to exert a biasing force along the first axis such that one or more resulting friction forces cause the arbor to rotate with the gear when a torque exerted on the gear is less than a threshold torque.

Grinders with friction drives

A tool housing which in one aspect includes a body defining a head portion with a handle portion depending therefrom to define a forward and/or a rear junction. A metal reinforcing member is configured to span along an inside surface of the body from the head portion to the handle portion such that the reinforcing member bridges either the forward or rear junction. In another aspect, the tool assembly comprises a tool housing body, a motor positioned within the tool body housing, a drive mechanism connected with the motor to define a unitary motor/drive mechanism assembly, and at least one elastic isolating member extending about a portion of the motor/drive mechanism assembly such that the motor/drive mechanism assembly is elastically isolated relative to the housing body.

Power tool housing support structures

Growing community of inventors

Asbury, NJ, United States of America

Joseph Constantine Bouboulis