US 5,328,141 A · Sag compensated vibration isolation mount

Abstract

A sag-compensated vibration isolation mount includes a cylindrical rubber dy element and a circular band extending around the body element. The band is formed from a shape-memory alloy metal which has a predetermined transition temperature. The band is operative for restricting outward bulging and sagging of the body element when the body element is subjected to an axial load at a temperature above the transition temperature. The band has a first length at a temperature above the transition temperature and it is stretchable to a second length at a temperature below the transition temperature. At temperatures below the transition temperature, the body element normally stretches the band to its second length. However, when the band is heated above its transition temperature, the band rapidly decreases in length to its first length to forcibly compress the body element and restrict outward bulging of the body element.

Claims16

Dependent claims

A vibration isolation mount comprising:

a visco-elastic body element having opposite first and second ends, a predetermined height and a predetermined perimeter;
at least one band means extending around said body element intermediate said opposite ends, said band means having a length substantially equal to said predetermined perimeter;
and
means for decreasing the length of said band means responsive to a predetermined temperature increase so as to forcibly compress said body element.

1 more element

A vibration isolation mount for isolating an object from a supporting surface comprising:

a viscoelastic body element having a first end attached to said object and an opposite second end attached to said supporting surface, said object exerting a constant compressive load on said body element wherein said body element has a predetermined height and a predetermined perimeter at a first temperature, said body element sagging to a height less than said predetermined height and a perimeter greater than said predetermined perimeter when said body element is heated to a temperature above said first temperature;
band means extending around said body element intermediate said opposite ends, said band means having a length substantially equal to said predetermined perimeter;
and
means for decreasing the length of said band means when said body element is heated above said first temperature, said band means forcibly compressing said body element and thereby restricting outward bulging of said body element.

1 more element

Dependencies are inferred from the claim text.

Sag compensated vibration isolation mount

Life of this patent

Sag compensated vibration isolation mount

Life of this patent

Abstract

Claims16