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US3901785A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for producing a metal band

Assignee: Individual
•
Filing: 1974-01-03
•
Granted: 1975-08-26
•
Expires: 1994-01-03
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Abstract

Abstract The method resides in depositing the metal electrolytically on the surface of a cathode from an electrolytic solution, with the current density being successively varied in a plurality of stages: during the first ones of these stages the current density is maintained within a range from 1,000 to 5,000 A/sq.m, during the last stage but one the current density is maintained within a range from 5,000 to 10,000 A/sq.m for a period from 1 second to 300 seconds, during the last stage the current density is maintained within a range from 4,000 to 50,000 A/sq.m for a period from 1 second to 200 seconds, the electrolytic solution being positively agitated during all said stages except the last one. The apparatus comprises at least three anode plates arranged about the periphery of the cathode drum and radially spaced therefrom within the bath containing the electrolytic solution, the anode plates being connected to the individual power supply sources. The two anode plates, which are the last ones in the direction of the progress of the metal band, have the ratio of the respective surface areas thereof within a range from 15:1 to 5:1. The inter-electrode space, pertaining to the last one of these anode plates, is separated by a partition from the rest of the internal space of the bath.

Inventors

  • 👤 Antonina Vladimiro Buzhinskaya
  • 👤 Leonid Alexandrovich Sergeev
  • 👤 Vladimir Ivanovich Trofimov
  • 👤 Vyacheslav Borisovich Bobrov
  • 👤 Anna Ilinichna Migina
  • 👤 Tatyana Fedorovna Perelygina
  • 👤 Anatoly Boriso Bobrov
  • 👤 Administrator By Evdok Bobrova
  • 👤 Administrator By Irina Bobrova

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 08:16
CPC Classifications
C; C25; C25D; C25D1/00; C25D1/04

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 178 words
APPARATUS FOR PRODUCTION OF A METAL BAND COMPRISING: A HOUSING FOR HOLDING AN ELECTROLYTIC SOLUTION, AN INLET AND OUTLET FOR THE ELECTROLYTIC SOLUTION MOUNTED IN SAID HOUSING, AIR FEED MEANS DISPOSED IN THE LOWER PORTION OF SAID HOUSING FOR AGITATING THE ELECTROLYTIC SOLUTION, A CATHODE DRUM MOUNTED WITHIN SAID HOUSING, A PLURALITY OF ANODES DISPOSED ABOUT THE PERIPHERY OF SAID CATHODE DRUM IN SAID HOUSING, SAID ANODES BEING CONNECTED TO INDIVIDUAL SOURCES OF POWER, SAID ANODES PROVIDING FOR ELECTRODEPOSITING ON SAID CATHODE DRUM OF A PRIMARY METAL LAYER AND A SECONDARY METAL LAYER HAVING A ROUGHENED SURFACE, THE CATHODE CURRENT DENSITY OPPOSITE THE ANODES INTENDED FOR THE DEPOSITION OF SAID SECONDARY ROUGHENED METAL LAYER ONTO SAID PRIMARY METAL LAYER BEING HIGHER THAN THAT OPPOSITE THE ANODES INTENDED FOR THE DEPOSITION OF SAID PRIMARY METAL LAYER, A PORTION ENGAGING THE PERIPHERY OF THE CATHODE DRUM FOR FORMING A CHAMBER WITH A QUIESCENT ELECTROLYTE ZONE CREATED THEREIN, SAID CHAMBER ACCOMMODATING AN INDIVIDUAL ANODE WHEREBY ONTO SAID SECONDARY ROUGHENED METAL LAYER A DENDRITIC METAL LAYER HAVING HIGH BOND STRENGHT IS ELECTRODEPOSITED.
Claim 2
Dependent Claim 178 words
APPARATUS FOR PRODUCTION OF A METAL BAND COMPRISING: A HOUSING FOR HOLDING AN ELECTROLYTIC SOLUTION, AN INLET AND OUTLET FOR THE ELECTROLYTIC SOLUTION MOUNTED IN SAID HOUSING, AIR FEED MEANS DISPOSED IN THE LOWER PORTION OF SAID HOUSING FOR AGITATING THE ELECTROLYTIC SOLUTION, A CATHODE DRUM MOUNTED WITHIN SAID HOUSING, A PLURALITY OF ANODES DISPOSED ABOUT THE PERIPHERY OF SAID CATHODE DRUM IN SAID HOUSING, SAID ANODES BEING CONNECTED TO INDIVIDUAL SOURCES OF POWER, SAID ANODES PROVIDING FOR ELECTRODEPOSITING ON SAID CATHODE DRUM OF A PRIMARY METAL LAYER AND A SECONDARY METAL LAYER HAVING A ROUGHENED SURFACE, THE CATHODE CURRENT DENSITY OPPOSITE THE ANODES INTENDED FOR THE DEPOSITION OF SAID SECONDARY ROUGHENED METAL LAYER ONTO SAID PRIMARY METAL LAYER BEING HIGHER THAN THAT OPPOSITE THE ANODES INTENDED FOR THE DEPOSITION OF SAID PRIMARY METAL LAYER, A PORTION ENGAGING THE PERIPHERY OF THE CATHODE DRUM FOR FORMING A CHAMBER WITH A QUIESCENT ELECTROLYTE ZONE CREATED THEREIN, SAID CHAMBER ACCOMMODATING AN INDIVIDUAL ANODE WHEREBY ONTO SAID SECONDARY ROUGHENED METAL LAYER A DENDRITIC METAL LAYER HAVING HIGH BOND STRENGHT IS ELECTRODEPOSITED.
Claim 3
Dependent Claim 13 words
The apparatus of claim 1 wherein at least three plate anodes are employed.
Claim 4
Dependent Claim 29 words
The apparatus of claim 1 wherein the two ultimate plate anodes in the direction of rotation of the cathode drum are insulated from said housing and from each other.
Claim 5
Dependent Claim 78 words
The apparatus of claim 1 wherein the cathode drum mounted in said housing functions as a common cathodic means in relation to all the anodes employed, thereby providing for depositing onto said cathode drum a primary metal layer, followed by depositing onto the surface of said primary metal layer a secondary roughened metal layer and treatment of the roughened surface of said secondary metal layer so as to obtain thereon a dendritic metal layer exhibiting high bond strength.

References Cited (Backward Citations)

US1701918A Cited
US1567079A Cited
US1806587A Cited
US3674656A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-08-25 1979-02-24 1979-08-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-08-25 1983-02-24 1983-08-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-08-25 1987-02-24 1987-08-26 $7700.00 Window Closed / Lapsed

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