Thomas E Oswald

US Patent:

6886439, May 3, 2005

Filed:

Feb 2, 2001

Appl. No.:

09/773580

Inventors:

John V. Marlow - Oakville, CA
Thomas Lester Oswald - Roseville MN, US
Rajindra Singh - Oakville, CA
Albert M. Vincze - Oakville, CA

Assignee:

Teck Cominco Metals Ltd. - Vancouver

International Classification:

B26D007/10
B26D001/56

US Classification:

83171, 83 15, 83346, 83903, 83922, 29 2, 29 61, 296235, 141 11, 141 32

Abstract:

A method and apparatus for continuously producing pasted positive and negative electrode plates from pasted lead or lead alloy expanded, punched or cast metal mesh strip for use in lead-acid batteries without the use of paper barriers. The heating of cutting devices such as roll-mounted die-cutters to a predetermined temperature range of at least about 150 C. , preferably about 160 to 300 C. , and more preferably about 180 to 210 C. , eliminates sticking of the paste on the pasted metal mesh strip to the cutting devices and obviates the need for the paper barriers.

US Patent:

7007579, Mar 7, 2006

Filed:

Oct 17, 2003

Appl. No.:

10/686657

Inventors:

John V. Marlow - Oakville, CA
Thomas Lester Oswald - Roseville MN, US
Rajindra Singh - Oakville, CA
Albert M. Vincze - Oakville, CA

Assignee:

Teck Cominco Metals Ltd. - Vancouver

International Classification:

B26D 7/10
B26D 1/56

US Classification:

83171, 83346, 83903, 83922, 29 2

Abstract:

A method and apparatus for continuously producing pasted positive and negative electrode plates from pasted lead or lead alloy expanded, punched or cast metal mesh strip for use in lead-acid batteries without the use of paper barriers. The heating of cutting devices such as roll-mounted die-cutters to a predetermined temperature range of at least about 150 C. , preferably about 160 to 300 C. , and more preferably about 180 to 210 C. , eliminates sticking of the paste on the pasted metal mesh strip to the cutting devices and obviates the need for the paper barriers.

US Patent:

47299339, Mar 8, 1988

Filed:

Feb 11, 1987

Appl. No.:

7/017282

Inventors:

Thomas L. Oswald - Roseville MN

Assignee:

GNB Incorporated - Mendota Heights MN

International Classification:

H01M 202

US Classification:

429 59

Abstract:

A battery structure arranged to avoid the inefficiency problems which normally accompany container bulging in conventional absorbed electrolyte batteries such as sealed lead-acid batteries. The battery container is separated by partition walls into a plurality of working cells into which are closely fitted conventional stacks of plates and separators. The partition walls hold the plates and separators in intimate contact necessary for proper operation of the battery. Bulge compensating end cells are provided at either end of the battery between the working cells and the container end walls to accommodate pressure variations during battery operation. Compression means associated with the bulge compensating end cells maintains the plates and separators in intimate contact to maintain battery efficiency while permitting the container end walls to bulge.

US Patent:

45735140, Mar 4, 1986

Filed:

May 21, 1982

Appl. No.:

6/380826

Inventors:

Alby H. Wolf - Minneapolis MN
Thomas L. Oswald - Roseville MN

Assignee:

GNB Batteries Inc. - Mendota Heights MN

International Classification:

B22D 2704
B22D 502
B22D 1900

US Classification:

164 41

Abstract:

A method of casting metal straps on lugs of battery cell elements utilizes an electrically heatable mold having a strap cavity section and comprises introducing strap metal into the cavity section, conducting electrical current through the mold for heating the mold to a predetermined temperature in excess of the melting temperature of the strap metal, immersing the element lugs into the cavity, cooling the mold to a temperature below the solidification temperature of the strap metal and removing the element lugs from the cavity with straps cast thereon.

US Patent:

44060572, Sep 27, 1983

Filed:

Mar 20, 1981

Appl. No.:

6/245795

Inventors:

Thomas L. Oswald - Roseville MN
David L. Lund - Minneapolis MN

Assignee:

GNB Batteries Inc. - Mendota Heights MN

International Classification:

H01M 1004

US Classification:

296234

Abstract:

An element stack and a method of making same is provided in which assembling a relatively large number of relatively small electrode plates into an element stack is facilitated by positioning a first set of electrode plates onto a strip of separator material in pre-selected locations and then affixing such plates to the strip. The resulting product may then be readily processed into the element stack by insertion of a second set of electrode plates of opposite polarity to the first set and then folding the separator in accordion fashion. The assembly method is amenable to automation and the resulting cell element stack may be handled as a unit thereby facilitating battery assembly.