Back to results
US 6,010,803 AGranted
Metal injection molded cover for an electrochemical cell
AssigneeMedtronic, Inc.
InventorsBernard F. Heller, Jr., Scott E. Jahns, Daniel C. Haeg
Life of this patent
Estimating the term…
Abstract
A cover for an electrochemical cell is molded by a metal injection molding process. The cover includes a main body portion completely integral with a feedthrough ferrule portion for accommodating an electrical lead to pass through the cover and/or completely integral with a fillport portion for introducing cathode material into the cell.
Claims22
A cover for use in covering an open side of a container portion for an electrochemical cell, the cover comprising:
- a main body portion;
- a feedthrough ferrule portion defining a passage through the cover;
- a fillport portion defining a passage through the cover, wherein at least one of the feedthrough ferrule portion and fillport portion is metal injection molded with the main body portion and is completely integral with the main body portion;
- and
- one or more spacers positioned about a peripheral edge of the main body portion, the one or more spacers being completely integral with the main body portion.
2 more elements
A cover for use in covering an open side of a container portion for an electrochemical cell, the cover comprising:
- a main body portion;
- a feedthrough ferrule portion defining a passage through the cover;
- a fillport portion defining a passage through the cover, wherein at least one of the feedthrough ferrule portion and fillport portion is metal injection molded with the main body portion and is completely integral with the main body portion
- a projection extending from the main body portion, the projection being completely integral with the main body portion, wherein the projection is a heat sink projection.
1 more element
A cover for covering an open side of a container portion of an electrochemical cell, the over comprising:
- a main body portion;
- a feedthrough ferrule portion defining a passage through the cover for allowing an electrical lead to pass through the cover, the feedthrough ferrule portion being metal injection molded with the main body portion resulting in the feedthrough ferrule portion being completely integral with the main body portion;
- and
- spacer means for centering the cover in the opening of the container shell, the spacing means being integrally molded with the main body portion.
1 more element
A cover for covering an open side of a container portion of an electrochemical cell, the cover comprising:
- a main body portion;
- a fillport portion defining a passage through the cover for allowing material to be poured therethrough, wherein the fillport portion metal injection molded with the main body portion resulting in the fillport portion being completely integral with the main body portion;
- and
- spacer means for centering the cover in the opening of the container shell, the spacing means being integrally molded with the main body portion.
1 more element
A cover for an electrochemical cell, the cover comprising:
- a main body portion for substantially covering an open side of a container shell;
- means for defining a first passage through the cover for allowing an electrical lead to pass through the cover, said first passage defining means includes a tubular member extending from and metal injection molded integrally with the main body portion;
- and
- means for defining a second passage through the cover for allowing a material to be poured into the cell, the second passage defining means including a second tubular member having a conical outer surface metal injection molded integrally with the main body portion;
- and
- spacer means for centering the cover in the opening of the container shell, the spacing means being integrally molded with the main body portion.
3 more elements
A housing for an electrochemical cell, comprising:
- a container portion defining an open side;
- and
- a cover portion for covering the open side such that the cover portion and the container portion define and enclose a cell cavity, the cover portion including:
- a main body portion;
- a feedthrough ferrule portion defining a first passage through the cover portion for allowing an electrical lead to pass through the cover portion;
- a fillport portion defining a second passage through the cover portion for allowing material to be poured into the cell cavity, at least one of the feedthrough ferrule portion and fillport portion is completely integral with the main body portion;
- and
- one or more spacers positioned about a peripheral edge of the main body portion, the one or more spacers being completely integral with the main body portion.
5 more elements
An electrochemical cell, comprising:
- a housing of electrically conductive material, the housing comprising:
- a container portion defining an opening;
- a cover portion for closing the opening such that the cover portion and container portion enclose a cell cavity, the cover portion comprising:
- a main body portion,
- a feedthrough ferrule portion defining a first passage through the cover portion for allowing an electrical lead to pass through the cover portion, and
- a fillport portion defining a second passage through the cover portion for allowing cathode material to be poured into the cell cavity, at least one of the feedthrough ferrule portion and fillport portion being integrally molded with the main body portion;
- a cathode/anode assembly contained in the housing and insulated from electrical contact therewith, the cathode/anode assembly including at least an electrical lead passing through the first passage;
- and
- heat sink means for dissipation of heat integrally molded with the main body portion.
6 more elements
Dependencies are inferred from the claim text.