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US 5,160,122 AGranted
Coil spring with an elastomer having a hollow coil cross section
AssigneesPeter J. Balsells, Joan C. Balsells
InventorPeter J. Balsells
Life of this patent
Estimating the term…
Abstract
A spring assembly includes a plurality of coils interconnected with one another in a spaced-apart relationship for causing the spring assembly to exert a force in a loading direction approximately normal to a tangent to a centerline of the plurality of coils in response to deflection of the spring assembly along the loading direction. An elastic material is provided which is disposed around and between the plurality of coils and has a hollow cross section for modifying the force exerted by the spring assembly in response to the deflection of the spring assembly along the loading direction.
Claims21
A spring assembly comprising:
- a plurality of coil means, interconnected with one another in a spaced-apart relationship, for causing the spring assembly to exert a force in a loading direction approximately normal to a tangent to a centerline of said plurality of coil means in response to deflection of the spring assembly along said loading direction;
- and
- elastic material means, disposed around and between said plurality of coil means and having a hollow cross-section, for modifying the force exerted by the spring assembly in response to deflection of the spring assembly along said loading direction.
A spring assembly comprising:
- a generally tubular shaped elastic material;
- and
- a plurality of coil means, interconnected with one another in a spaced-apart relationship and disposed within said generally tubular shaped elastic material, for causing the spring assembly to exert a generally constant force in a loading direction approximately normal to a tangent to a centerline of said plurality of coil means in response to deflection of the spring assembly along said loading direction, said force being generally constant over a range of deflection of the spring assembly along the loading direction.
A spring assembly comprising:
- a plurality of coil means, interconnected with one another in a spaced-apart relationship, for causing the spring assembly to exert a generally constant force in a loading direction approximately normal to a tangent to a centerline of said plurality of coil means in response to deflection of the spring in response to deflection of the spring assembly along said loading direction;
- and
- elastic coating means, disposed on said plurality of coil means, for modifying the magnitude of the generally constant force exerted by the plurality of coils in response to deflection of the spring assembly along said loading direction.
A spring assembly comprising:
- a first plurality of coil means, interconnected with one another in a spaced-apart relationship, for causing the spring assembly to exert a generally constant force in a loading direction approximately normal to a tangent to a centerline of said plurality of coil means in response to deflection of the spring assembly along said loading direction;
- a second plurality of coil means, interconnected with one another in a spaced-apart relationship and disposed within said first plurality of coil means, and in a cooperating relationship therewith, for causing the spring assembly to exert a generally constant force in a loading direction approximately normal to a tangent to a centerline of said second plurality of coil means in response to deflection of the spring assembly along said loading direction;
- and
- elastic material means, disposed around and between said first and second plurality of coil means and having a hollow cross-section, for modifying the force exerted by the spring assembly in response to deflection of the spring assembly along said loading direction.
1 more element
A spring assembly comprising:
- a first generally tubular shaped elastic material;
- a first plurality of coil means, interconnected with one another in a spaced-apart relationship and disposed within said first generally tubular shaped elastic material, for causing the spring assembly to exert a generally constant force in a loading direction approximately normal to a tangent to a centerline of said plurality of coil means in response to deflection of the spring assembly along said loading direction, said force being generally constant over a range of deflection of the coil springs along the loading direction;
- and
- a second generally tubular shaped elastic material disposed within said first plurality of coils;
- and
- a second plurality of coil means, interconnected with one another in a spaced-apart relationship disposed within said second generally tubular shaped elastic material and in a cooperating relationship with said first plurality of coils, for causing the spring assembly to exert a generally constant force in a loading direction approximately normal to a tangent to a centerline of said second plurality of coil means in response to deflection of the spring assembly along said loading direction, said force being generally constant over a range of deflection of the spring assembly along the loading direction.
3 more elements
A spring assembly comprising:
- a plurality of coil means, interconnected with one another in a spaced-apart relationship, for causing the spring assembly to exert a force in a loading direction approximately normal to a tangent to a centerline of said plurality of coil means in response to deflection of the spring assembly along said loading direction;
- and
- elastic material means, disposed around and between said plurality of coil means and having a hollow cross-section, for both modifying the force exerted by the spring assembly in response to deflection of the spring assembly along said loading direction and orienting the plurality of coil means at a turn angle, said turn angle being greater than zero degrees and less than 90 degrees.
Dependencies are inferred from the claim text.