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US 10,307,325 B1Granted
Cylindrical core exercise and massage roller
OwnerRonald B. Johnsoninventor
Life of this patent
Estimating the term…
Abstract
A roller which an individual may use to perform a variety of self-applied exercises for massage, myofascial release and other exercises. The roller is cylindrical having a resilient outer surface on which are a plurality of axially spaced, circumferentially extending bands of similar projections which manipulate the body of the individual when the individual rolls against the surface of the roller. The projections are equally circumferentially spaced in each band extending around the cylindrical body. The material and shape of the projections are selected to provide greater resistance to bending or flexing to forces applied axially than to tangentially applied forces.
Claims20
A massage roller, comprising:
- a hollow cylindrical body comprising an axis, a hollow space within the hollow cylindrical body, an interior surface, and an exterior surface opposite the interior surface, the exterior surface and the interior surface joined by a lip surface at either end of the cylindrical body defining two opposing lips extending inwardly from the cylindrical body towards the axis of the cylindrical body until terminating at the lip surface;
- a plurality of massage projections extending outwardly from the exterior surface of the cylindrical body, each massage projection of the plurality of massage projections comprising a radiused peripheral edge extending around a base of the massage projection and separated from the base of an adjacent massage projection of the plurality of massage projections by an intermediate space that exposes a portion of the cylindrical body, the plurality of massage projections formed as a plurality of axially-spaced apart bands of the plurality of massage projections, each band of the plurality of bands comprising two or more massage projections of the plurality of massage projections aligned circumferentially about the cylindrical body;
- and
- a solid, non-hollow cylindrical core that fills the hollow space within the cylindrical body, the cylindrical core formed of ethylene-vinyl acetate, positioned within the cylindrical body, and engaged between the two opposing lips.
1 more element
A massage roller, comprising:
- a hollow cylindrical body comprising an axis, a majority of the cylindrical body having a first wall thickness and opposing ends of the cylindrical body having a second wall thickness greater than the first wall thickness to form two opposing lips;
- a plurality of massage projections extending from the cylindrical body, each of the plurality of massage projections comprising a base, an arcuate apex opposite the base, and two opposing side walls sloping closer together from the base toward the arcuate apex, wherein a height:width ratio of each massage projection ranges from 1:1 to 1:2.5 and a height:axial length ratio of each massage projection ranges from 1:1.5 to 1:3;
- and
- a non-hollow cylindrical core that fills a hollow space within the hollow cylindrical body and is entrapped between the two opposing lips.
1 more element
A massage roller, comprising:
- a cylindrical and non-hollow high density polyethylene core;
- a single hollow cylindrical body comprising an axis, an interior surface facing towards the high density polyethylene core, and an exterior surface opposite the interior surface, a majority of the cylindrical body having a first wall thickness and opposing ends of the cylindrical body having a second wall thickness greater than the first wall thickness to form two opposing lips positioned to entrap the high density polyethylene core within the cylindrical body, each of the two opposing lips comprising a lip surface that faces towards the axis and joins the interior surface and the exterior surface of the cylindrical body, the hollow cylindrical body comprising a plurality of axially spaced-apart bands each comprising a plurality of massage projections aligned circumferentially around and extending from the cylindrical body, each massage projection comprising a base proximate the cylindrical body and separated from a base of an adjacent massage projection by an intermediate space that exposes a portion of the cylindrical body.
Dependencies are inferred from the claim text.