D'addario & Company, Inc.

Patrick Zerbo

Andrzej J Krol

An exercise device includes a housing and one or more receptacles for receipt of a jointed body part, positioned to the outside of the housing, wherein each of the receptacles is biased toward the housing and independently repositionable away from the housing against a substantially constant bias force at all positions relative to the housing. In the disclosed finger exercising embodiment the housing includes a base defining a front surface for engagement with the fingers during retraction of the finger receptacles and an inner surface over which the cords pass toward the finger receptacles. A joint isolation element, such as a flexible band, is positioned at the front surface of the base, whereby the user keeps one or more fingers engaged with the housing while one or more other fingers can be extended against resistance.

Retractable hand exerciser

A multi-functional finger exercise device includes mechanisms for both compression exercises and extension exercises. The compression exercises are provided by a plunger biased away from a central housing. The extension exercises are provided by an elastic member with an anchor exposed from the housing. The tension provided by each of the compression mechanism and extension mechanism is adjustable.

Growing community of inventors

Cold Spring Harbor, NY, United States of America

Patrick Zerbo