James R Schwaegler

US Patent:

7040691, May 9, 2006

Filed:

Dec 6, 2004

Appl. No.:

11/005236

Inventors:

Jon E. Jacobs - Ann Arbor MI, US
James R. Schwaegler - Canton MI, US

Assignee:

Material Sciences Corporation - Elk Grove IL

International Classification:

B60R 27/00

US Classification:

29619307

Abstract:

A tub is configured for attachment to a vehicle floor to receive a collapsed vehicle seat therein. The tub is formed from a laminated sheet structure including two layers of cold rolled steel having a viscoelastic layer therebetween spanning the entirety of both steel layers. The tub body has a rim, side walls extending downward from the rim, and a bottom supported by the side walls. The tub body is approximately 10″ deep from the rim to the bottom. The laminated sheet structure has a bending rigidity between approximately 9. 7 and 16. 5 Nm to enable the forming of the side walls.

US Patent:

20060169341, Aug 3, 2006

Filed:

Feb 1, 2005

Appl. No.:

11/047831

Inventors:

Gregory Goetchius - Oaklnad MI, US
James Schwaegler - Canton MI, US

International Classification:

F16L 55/04

US Classification:

138030000, 138141000

Abstract:

An internally damped laminated tube comprises an outer layer and an inner layer, with a viscoelastic layer disposed therebetween. The outer and inner layers constrain the viscoelastic layer, thereby providing noise and vibration reduction through constrained-layer damping. While both the outer and inner layers act as constraining layers, the outer layer also preferably provides structural support for the tube, thus necessitating a thicker outer layer. Preferably, the outer and inner layers comprise steel. The internally damped tube according to the present invention exhibits a composite loss factor greater than four percent for ring modes occurring at vibrational frequencies between 700 and 950 Hz.

US Patent:

20070262056, Nov 15, 2007

Filed:

May 15, 2006

Appl. No.:

11/383242

Inventors:

James Schwaegler - Canton MI, US
Daniel Fondriest - Howell MI, US

International Classification:

B23K 11/06

US Classification:

219083000

Abstract:

A tailor-welded blank is formed by resistance mash seam welding an overlapped metallic sheet and a laminated steel structure that has a viscoelastic layer sandwiched between steel layers. Preferably, assuming the metallic sheet is approximately 1.3 millimeters (mm) thick and the laminated steel structure is approximately 1.15 millimeters (mm) thick, the weld speed is approximately 7 meters per minute (mpm), the weld pressure is approximately 0.3 millipascals (mPa) and the weld current is approximately 30.3 kiloamps (kA). The tailor-welded blank may be stamped to form an automotive component

US Patent:

20100132110, Jun 3, 2010

Filed:

Dec 1, 2008

Appl. No.:

12/325407

Inventors:

James R. Schwaegler - Canton MI, US

Assignee:

MATERIAL SCIENCES CORPORATION - Elk Grove Village IL

International Classification:

E03C 1/04
B32B 15/00
B32B 37/00
A47K 1/00

US Classification:

4619, 428615, 156 60, 156242

Abstract:

Bimetal laminate structures and an improved method for manufacturing the same are provided herein. In one preferred embodiment, the laminate structure includes a first constraining layer that is fabricated from a metallic material, such as stainless steel. A second constraining layer that is appreciably thicker than the first is also included. The second constraining layer is fabricated from a different metallic material, such as low-carbon cold rolled steel. An adhesive layer spans between and rigidly bonds the first and second constraining layers. The first and second constraining layers have a thickness ratio, a yield strength ratio, and a springback ratio that are collectively optimized such that the laminate structure can be formed, preferably through a deep drawing operation, to define one or more depressions/basins of a predetermined depth without delaminating or cracking. The adhesion strength of the adhesive layer is also engineered to prevent separation of the two constraining layers.