Denis D Carpenter

US Patent:

7651814, Jan 26, 2010

Filed:

Jun 30, 2004

Appl. No.:

10/880878

Inventors:

Thomas P. Anderson - Dodgeville WI, US
William C. Bushong - Madison WI, US
Denis D. Carpenter - Verona WI, US
Aaron J. Rositch - Edgerton WI, US
Marc L. Syvertsen - Madison WI, US
Bruce Weldum - Madison WI, US
Thomas M. Kaufman - Middleton WI, US

Assignee:

Rovcal, Inc. - Madison WI

International Classification:

H01M 2/08

US Classification:

429175, 429185

Abstract:

An electrochemical cell is provided having a cathode can that fits over an anode can to define an anode cavity for retaining active anode material. A cathode assembly is disposed proximal the base of the anode can, and is separated from the anode cavity via a separator. A radial seal is provided at the remote region between the outer periphery of the anode side wall and cathode side wall to prevent the leakage of electrolyte material. An insulator is disposed between the anode and cathode to provide electrical insulation therebetween.

US Patent:

20070111095, May 17, 2007

Filed:

Nov 14, 2005

Appl. No.:

11/272990

Inventors:

Akshaya Padhi - Middleton WI, US
Denis Carpenter - Verona WI, US
Jeffrey Poirier - Madison WI, US

Assignee:

Rovcal, Inc. - Madison WI

International Classification:

H01M 4/50
C01G 45/02

US Classification:

429224000, 423605000

Abstract:

An oxygen reduction electrode, e.g., an air cathode, comprising manganese oxides having octahedral molecular sieve structures as active catalyst materials and use of such an electrode as a component of a metal-air cell.

US Patent:

20110070487, Mar 24, 2011

Filed:

Aug 30, 2010

Appl. No.:

12/870959

Inventors:

Akshaya Kumar Padhi - Madison WI, US
Denis D. Carpenter - Verona WI, US
Jeffrey A. Poirier - Madison WI, US

Assignee:

ROVCAL, INC. - Madison WI

International Classification:

H01M 10/26

US Classification:

429206

Abstract:

An oxygen reduction electrode, e.g., an air cathode, comprising manganese oxides having octahedral molecular sieve structures as active catalyst materials and use of such an electrode as a component of a metal-air cell.

US Patent:

46490906, Mar 10, 1987

Filed:

Jan 22, 1986

Appl. No.:

6/821430

Inventors:

John E. Oltman - Mt. Horeb WI
Robert B. Dopp - Madison WI
Denis D. Carpenter - Madison WI

Assignee:

Rayovac Corporation - Madison WI

International Classification:

H01M 1206
C09U 702

US Classification:

429 29

Abstract:

A seal tab consisting of an acrylic adhesive applied to a biaxially-oriented three-ply synthetic paper of polypropylene is used as a sealing means for metal-air electrochemical cells, and batteries constructed thereof. The seal tabs prevent loss of rate capability and capacity due to interactions with the surrounding environment prior to the placement into service of metal air cells, yet without so isolating the cells such that the initial open circuit voltage is deemed unacceptable by the end user. Additionally, the seal tab, as provided, is easily and cleanly removed, which enhances the cell's consumer appeal.

US Patent:

45915393, May 27, 1986

Filed:

Mar 21, 1985

Appl. No.:

6/714628

Inventors:

John E. Oltman - Mt. Horeb WI
Denis D. Carpenter - Madison WI
Robert B. Dopp - Madison WI

Assignee:

Rayovac Corporation - Madison WI

International Classification:

H01M 1206

US Classification:

429 27

Abstract:

A button cell having an air cathode assembly wherein grooves are constructed between the cathode and cell container to provide a gas diffusion passage from a port extending through the container to the face of the air cathode.

Address:

918 Tamarack Way, Verona, WI 53593

Phone:

608 845-8634

VIN:

JTDBR32E770112720

Make:

TOYOTA

Model:

COROLLA

Year:

2007