Echo, Inc.

Michael G Comerford

Randall J Griffin

Lawrence Will

Larry N Will

Mark Smolenski

Gary A Brycki

The combination of a) a first tubular element with a first axis, a first portion with a radially outwardly facing surface and a first connecting assembly with a first circumferentially facing surface and b) a second tubular element with a second portion with a second axis, a radially inwardly facing surface, and a second connecting assembly with a second circumferentially facing surface. The first portion is extendable within the second portion. The first and second tubular elements are movable around the first and second axes between a) a first relative rotational position and b) a second relative rotational position such that the first and second connecting assemblies cooperate to draw the first and second portions axially towards each other and the first and second circumferentially facing surfaces confront each other to thereby block relative movement back into the first relative rotational position.

Connecting system for telescopingly engaged elements and method of maintaining the elements together using the system

A portable fluid blower having a housing defining an intake region for incoming fluid, an output region, and a fluid path for controllably communicating fluid entering the intake region to the output region at which fluid is discharged from the housing. An impeller on the housing is rotatable around a first axis and draws fluid into the fluid path through the intake region and accelerates fluid drawn into the fluid path so that the fluid drawn into the fluid path through the intake region is accelerated in the fluid path and discharged in an accelerated state at the output region. A drive rotates the impeller around the first axis. The fluid path has a first curved fluid path portion that extends at least partially around the first axis, and a second transition path portion through which fluid communicates from the input region towards the first curved fluid path portion. At least part of the second transition path portion is defined by a guide surface, that extends continuously around a central axis that is substantially coincident with the first axis, and has a diameter that increases progressively from the intake region axially relative to the central axis towards the first curved fluid path portion so that fluid moving from the intake region towards the first curved fluid path portion is guided progressively radially outwardly relative to the central axis through the part of the second transition path portion.

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Lake Geneva, WI, United States of America

Michael G Comerford