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US 4,308,304 AGranted
Antistatic tufted product
OwnerWilliam H. Cochran, IIinventor
Life of this patent
Estimating the term…
Abstract
A tufted product comprising a primary backing material having pile yarn projecting through its top surface and including an electrically conductive metal foil, the pile yarn being tufted through the primary backing fabric including the electrically conductive foil so that the yarn is in direct contact with the foil so as to render the product antistatic.
Claims2
A fabric composition comprising a fabric base,
- a heat conductive initially continuous sheet-form metal foil overlying said base,
- a non-woven batt of fibers overlying said metallic foil, and a plurality of interlocks joining the base, the foil and the batt and more specifically comprising a plurality of tufts of fibers extending in one direction through said foil through spaced apart needle punched apertures in the foil without impairing the unbroken thermal conductivity continuity of the foil between the apertures,
- said batt and said foil being locked to said base solely by said fibers of said batt which have been pushed through said foil and said base to form fiber masses which are locked against the bottom of said base,
- said foil forming unbroken continuous conductive paths to conduct heat away from a point of application to said composition for dissipation throughout the fabric composition.
1 more element
The method of making a heat dissipating fabric which comprises
- applying a continuous metallic foil over a web of a fabric base,
- applying a non-woven batt of fibers over said foil and needle punching the resulting composite,
- said needle punching forming plural interlocks to securely interlock said fabric base, said foil and said batt together, whereby said foil forms continuous conductive paths in the fabric to conduct heat away from a point of application to said composition for dissipation throughout the composition.
Dependencies are inferred from the claim text.