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US3563878A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrolytic cellstructure

Assignee: Hooker Chemical Corp
•
Filing: 1968-07-05
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Granted: 1971-02-16
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Expires: 1988-07-05
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Abstract

Abstract THE ANODES OF DIAPHRAGM TYPE ELECTROLYTIC CELLS OF EITHER MONOPOLAR OR BIPOLAR DESIGN ARE SECURED TO SPACER BARS, WHICH ARE ATTACHED TO A BASE PLATE, WITH BOLTS RUNNING PARALLEL TO THE BASE PLATE THROUGH PRESSURE BARS ON BOTH SIDES OF THE ANODES. ONE PRESSURE BAR IS THREADED TO RECEIVE THE THREADS OF THE BOLT, WHILE THE OTHER PRESSURE BAR IS DRILLED AND COUNTERSUNK TO RECEIVE THE HEAD OF THE BOLT. THE BOLTED ANODE ASSEMBLY PROVIDES A LOW RESISTANCE JOINT WHICH PERMITS OPERATION OF AN ELECTROLYTIC CELL AT HIGHER CURRENT DENSITIES WITHOUT ENCOUNTERING EXCESSIVE VOLTAGES. FURTHERMORE, THE ANODES MAY BE SHORTER IN THE BOLTED ASSEMBLY BECAUSE LESS STUB LOSS IS INVOLVED THAN IN THE CONVENTIONAL CAST LEAD BASE COVERED WITH MASTIC.

Inventors

  • 👤 Morris P Grotheer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 03:31
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/60; C25B9/65

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-02-15 1974-08-17 1975-02-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-02-15 1978-08-17 1979-02-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-02-15 1982-08-17 1983-02-16 $7700.00 Window Closed / Lapsed

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