Vibration isolation structure
AssigneeMinnesota Mining and Manufacturing Company
InventorSamuel G. Netherly
Life of this patent
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Abstract
An article especially suited for use as a vibration isolating or shock absorbing structure comprising a multitude of short, resiliently compressible, elastic, tubular, rubbery bodies held together in closely-packed relationship by restraining means. The rubbery bodies comprise a cured thermosetting millable extrudable composition having in the cured state an elasticity in excess of 200% and an elongation at break in excess of 300%. The tubular bodies are characterized by having a length to diameter ratio from about 2:1 to about 8:1 and a wall thickness of at least 0.025 inch.
Claims12
An article especially suited for use as a vibration isolating or shock absorbing structure comprising a multitude of short, resiliently compressible, elastic, tubular, rubbery bodies held together in closely-packed relationship by restraining means, wherein said rubbery bodies comprise a cured thermosetting millable extrudable composition having in the cured state an elasticity in excess of 200% and an elongation at break in excess of 300% and wherein said tubular bodies are characterized by having a length to diameter ratio from about 2:1 to about 8:1 and a wall thickness of at least about 0.025 inch.
An article especially suited for use as a vibration isolating or shock absorbing structure comprising a multitude of closely-packed, short, resiliently compressible rubbery pillows adhesively bonded together at points of mutual contact by means of a tough adherent polyurethane binder wherein said rubbery pillows are formed of filled thermoset millable extrudable polychloroprene rubber having an elasticity in excess of 200% and elongation at break in excess of 450% and are characterized by having a length to diameter ratio of 2:1 to about 8:1, a wall thickness of at least about 0.075 inch, and an internal cavity which has a volume in the range of about 10% to about 70% of the total volume of said pillow-like shape.
Dependencies are inferred from the claim text.