Patents
Patent data provided by The
European Patent Office
and updated through early 2009. Full text patent data loaded weekly coming soon.
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US1361473 (A), filed
(unknown)
, published
(unknown)
- LEVIN ISAAC H
US1366090 (A), filed
(unknown)
, published
(unknown)
- LEVIN ISAAC H
US1360543 (A), filed
(unknown)
, published
(unknown)
- LEVIN ISAAC H
US1862224 (A), filed
(unknown)
, published
(unknown)
- LEE LANGLEY EARNEST
US3401109 (A), filed
(unknown)
, published
(unknown)
- HOOKER CHEMICAL CORP
US4255245 (A), filed
Jul 17, 1979
, published
Mar 10, 1981
- CREUSOT LOIRE
The electrolysis cell, e.g. for use in the construction of an electrolyzer for the production of hydrogen on an industrial scale, comprises an alternate series of electrodes 1 to 7 and plane diaphragms 8 to 13, which are parallel and separated from one another...
US4332664 (A), filed
Sep 09, 1980
, published
Jun 01, 1982
- CSEPEL MUEVEK HIRADASTECH
A gas producing electrolytic cell for portable devices comprising a vessel, an electrolyte, a cap, a gas space, channel labyrinths, a separating wall and contacts. The channel labyrinths eliminate the outflow of the electrolyte from the cell in its overturned...
US4404081 (A), filed
Aug 14, 1981
, published
Sep 13, 1983
- MURPHY GEORGE W
A multicompartment photoelectrodialytic demineralization cell is provided with a buffer compartment interposed between the product compartment and a compartment containing an electrolyte solution. Semipermeable membranes separate the buffer compartment from...
US4632739 (A), filed
Jul 19, 1985
, published
Dec 30, 1986
- LAVALLEY IND PLASTICS INC
A cell head for an electrolytic cell includes a generally tubular protective insert concentrically positioned within the head to shield the inner side walls thereof from the scouring action of corrosive gas bubbles produced during electrolysis within the cell....
US4792386 (A), filed
Jan 13, 1986
, published
Dec 20, 1988
- DOW CHEMICAL CO
A method and apparatus for installing a sheet membrane in an electrolysis cell is disclosed. In the procedure, a rectangular sheet is first soaked in a selected wetting liquid preliminary to installation, one edge of the rectangular sheet is grasped in a...
US7393438 (B2), filed
Jul 14, 2005
, published
Jul 01, 2008
- PHELPS DODGE CORP
This invention relates to an apparatus for producing a metal powder product using either conventional electrowinning or alternative anode reaction chemistries in a flow-through electrowinning cell. A new design for a flow-through electrowinning cell that...
US7393440 (B2), filed
Jun 21, 2005
, published
Jul 01, 2008
- CANADA NAT RES COUNCIL
The present invention provides a system for generating hydrogen gas in an aqueous solution based electrolytic or galvanic cell wherein the cathode is made from aluminum or an aluminum alloy. In a preferred arrangement the cell is a galvanic cell and cathode is...
US2006266641 (A1), filed
May 31, 2005
, published
Nov 30, 2006
- PROTON ENERGY SYS INC
An electrochemical cell having a membrane electrode assembly (MEA), and a gas diffusion layer (GDL) disposed proximate a side of the MEA with an edge of the GDL disposed inboard of an edge of the MEA is disclosed. A sealing member is disposed proximate the...
US2007051619 (A1), filed
Nov 12, 2004
, published
Mar 08, 2007
- MAZUR STEPHEN
This invention provides a membrane-mediated electropolishing apparatus for polishing and/or planarizing metal work-pieces. The work-piece is wetted with a low-conductivity fluid. The wetted work-piece is contacted with a first side of a charge-selective...
