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US3905831A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrochemical electrodes

Assignee: Brunswick Corp
•
Filing: 1971-10-12
•
Granted: 1975-09-16
•
Expires: 1991-10-12
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Abstract

Abstract An electrochemical electrode of a metallic velvet-like material comprising a woven textile pile fabric wherein at least a portion of the woven base fabric and/or the velvet surface-forming pile yarns is metallic is described. The metallic yarn may comprise a blended yarn formed of staple metal fibers and conventional nonmetallic textile fibers, or may be formed of continuous metal filament material. The metal fibers, or filaments, are preferably formed with rough, unmachined, unburnished, fracture-free outer surfaces for improved retention in the velvet pile fabric. The electrode has particular application in fuel cells, batteries and other electrochemical systems where high usable surface areas (per unit volume) are needed to promote three-phase reactions.

Inventors

  • 👤 Perry H Brown
  • 👤 Maurice H Tremblay

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 11:17
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/8605; H01M4/8626; H01M4/8621; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 109 words
A FUEL CELL COMPRISING: AN ELECTROLYTE, A PAIR OF GAS MANIFOLDS FOR FUEL AND OXIDIZER GASES, AND A PAIR OF ELECTRODES INTERFACED BETWEEN THE ELECTROLYTE AND THE GAS MANIFOLDS, AT LEAST ONE ELECTRODE INCORPORATING A BASE FABRIC COMPRISED OF STAPLE FIBERS WHEREIN A PORTION OF THE STALE FIBERS ARE METALLIC FIBERS, AND PILE YARNS SECURED TO THE BASE FABRIC FORMING A PILE SURFACE PROJECTING FROM ONE FACE OF THE FABRIC, THE PILE YARN BEING FROMED OF FILAMENTS WHEREIN PART OF THE FILAMENTS ARE METAL, THE METAL FILAMENTS AND FIBERS OF THE ABRIC AND PILE YARN HAVING ROUGH, UNMACHINED AND UNBURNISHED, FRACTUREFREE OUTER SURFACES, THEREBY IMPROVING RETENTION IN THE FABRIC.
Claim 2
Dependent Claim 109 words
A FUEL CELL COMPRISING: AN ELECTROLYTE, A PAIR OF GAS MANIFOLDS FOR FUEL AND OXIDIZER GASES, AND A PAIR OF ELECTRODES INTERFACED BETWEEN THE ELECTROLYTE AND THE GAS MANIFOLDS, AT LEAST ONE ELECTRODE INCORPORATING A BASE FABRIC COMPRISED OF STAPLE FIBERS WHEREIN A PORTION OF THE STALE FIBERS ARE METALLIC FIBERS, AND PILE YARNS SECURED TO THE BASE FABRIC FORMING A PILE SURFACE PROJECTING FROM ONE FACE OF THE FABRIC, THE PILE YARN BEING FROMED OF FILAMENTS WHEREIN PART OF THE FILAMENTS ARE METAL, THE METAL FILAMENTS AND FIBERS OF THE ABRIC AND PILE YARN HAVING ROUGH, UNMACHINED AND UNBURNISHED, FRACTUREFREE OUTER SURFACES, THEREBY IMPROVING RETENTION IN THE FABRIC.
Claim 3
Dependent Claim 17 words
The fuel cell of claim 1 wherein the base fabric includes: interlaced warp ends and filling picks.
Claim 4
Dependent Claim 16 words
The fuel cell of claim 2 wherein the pile yarn is: interlocked with the base fabric.
Claim 5
Dependent Claim 16 words
The fuel cell of claim 1 wherein the pile yarn is: bonded to the base fabric,
Claim 6
Dependent Claim 13 words
The fuelcell of claim 1 wherein the base fabric is: a random web.

References Cited (Backward Citations)

US536996A Cited
US3203834A Cited
US3394213A Cited
US3288175A Cited
US3277564A Cited
US3461513A Cited
US3563801A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-09-15 1979-03-17 1979-09-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-09-15 1983-03-17 1983-09-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-09-15 1987-03-17 1987-09-16 $7700.00 Window Closed / Lapsed

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