Hand held massage device with removable handle

What is this patent about?

’424 is related to the field of personal therapeutic devices, specifically hand-held electric massagers. Traditional massagers often force a trade-off between reach and control; long-handled devices allow users to access their own backs but become cumbersome and imprecise when used on easily accessible areas like the neck or shoulders. The invention addresses the need for a modular system that adapts to different ergonomic requirements without sacrificing power or functionality.

The underlying idea behind ’424 is the use of a universal electro-mechanical interface that allows a power source to be bridged through an extension handle or connected directly to the massage head. By standardizing the coupling mechanism across the power cord, the handle, and the massager itself, the device can be reconfigured instantly. This modularity ensures that the electrical circuit remains intact whether the handle is acting as an intermediary conduit or is removed entirely to allow for a palm-grip operation.

The claims of ’424 focus on a modular assembly comprising a massager, a removable handle, and a power cord, all featuring compatible interchangeable connectors. The independent claims specify that the handle contains internal wiring to pass electricity from its base to its tip, enabling it to sit between the power cord and the massager. Crucially, the claims require that the power cord’s connector be physically and electrically compatible with both the handle’s input and the massager’s direct input, allowing the handle to be bypassed entirely.

In practice, the system utilizes specialized coupling interfaces, such as threaded male/female connectors or lug-and-channel joints, to ensure secure mechanical attachment while maintaining electrical continuity. When the handle is attached, an articulating joint allows the user to adjust the angle of the massage head for better leverage against the lower back. When the handle is detached, the massager becomes a compact unit, powered by the same cord, which the user can grip directly to apply more concentrated pressure to limbs or joints.

This invention differentiates itself from prior art by eliminating the permanent attachment of either the power cord or the handle. Unlike previous designs where the handle is a fixed structural component or the power source is tethered to a specific port, this system treats the handle as an optional electrical bridge. Furthermore, the integration of a dual-surface head—featuring both a fixed hemispherical dome and a revolving plate with recessed spheres—provides a variety of tactile therapies that can be delivered with or without the ergonomic extension.