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US3920534A Expired / Lapsed US ⏱️ 0.0 years remaining

Ion exchange membrane - cathode cartridge for an electrolytic cell

Assignee: Mead Corp
•
Filing: 1974-09-20
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Granted: 1975-11-18
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Expires: 1994-09-20
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Abstract

Abstract The invention is directed to an apparatus useful for performing electrolytic and electrochemical reactions. The apparatus is especially useful in cases wherein the reaction has a tendency to produce a gas, at least at the cathode. The preferred form of the apparatus is a closed concentric electrolytic cell. The apparatus includes a modular cartridge for the electrolytic cell comprising a porous tubular support member, a fiberglass mat overlying the support member, an ion exchange membrane overlying the mat, and a nylon cord wrapped around the membrane for holding the membrane and mat against the support member. The cell has a cathode concentrically disposed within the support member and an anode surrounding the modular cartridge, with the space inside of the tubular support member filled with wetproofed catalyst particles.

Inventors

  • 👤 Gerald A Jensen
  • 👤 Harry N Parsonage

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 17:51
CPC Classifications
C; C25; C25B; C25B1/00; C25B13/00; C25B9/00; C25B9/17; C25B9/19; C02; C02F; C02F2201/00; C02F2201/002; C02F2201/003

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 52 words
A MODULAR CATRIDGE FOR USE IN AN APPARATUS FOR CONDUCTING AN ELECTROLYTIC CHEMICAL REACTION COMPRISING A POROUS, SYNTHETIC PLASTIC, TUBULAR SUPPORT MEMBER, A WOVEN FIBERGLASS MAT, OVERLYING THE EXTERIOR SURFACE OF SAID SUPPORT MEMBER, AN ION EXCHANGE MEMBRANE OVERLYING SAID FIBERGLASS MAT, AND A NYLON CORD WRAPPED AROUND SAID MEMBRANE, MAT AND
Claim 2
Dependent Claim 52 words
A MODULAR CATRIDGE FOR USE IN AN APPARATUS FOR CONDUCTING AN ELECTROLYTIC CHEMICAL REACTION COMPRISING A POROUS, SYNTHETIC PLASTIC, TUBULAR SUPPORT MEMBER, A WOVEN FIBERGLASS MAT, OVERLYING THE EXTERIOR SURFACE OF SAID SUPPORT MEMBER, AN ION EXCHANGE MEMBRANE OVERLYING SAID FIBERGLASS MAT, AND A NYLON CORD WRAPPED AROUND SAID MEMBRANE, MAT AND
Claim 3
Dependent Claim 18 words
The modular cartridge of claim 1 further including a cathode, inwardly and concentrically spaced from said support member.
Claim 4
Dependent Claim 24 words
The modular cartridge of claim 2 wherein the space defined by the inner surface of said support member is filled with wetproofed catalyst particles.

References Cited (Backward Citations)

US3849278A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-11-17 1979-05-19 1979-11-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-11-17 1983-05-19 1983-11-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-11-17 1987-05-19 1987-11-18 $7700.00 Window Closed / Lapsed

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