James L Ludwig

US Patent:

6516571, Feb 11, 2003

Filed:

Nov 28, 2000

Appl. No.:

09/723996

Inventors:

Thomas Overthun - San Francisco CA
Thomas B. Eich - Palo Alto CA
James N. Ludwig - Grand Rapids MI
David M. Gresham - Grand Rapids MI

Assignee:

Steelcase Development Corporation - Caledonia MI

International Classification:

A47G 500

US Classification:

52 361, 524812, 52245, 52243, 52273, 160351, 160352

Abstract:

A screen apparatus includes a perimeter frame with a notch and arcuate foot in one of the bottom corners that are adapted to receive a raised floor device, such as a raised power outlet. A covering covers the frame but the notch is not covered. The covering is preferably a light-passing translucent sheet of performance fabric which is adapted to pass light sufficient for a viewer to see a person behind the screen, but which scatters and blocks sufficient light to provide privacy by hiding details of the persons work from the viewer. The screen apparatus also includes bowed frame members extending horizontally between some of the outer frame members. The perimeter frame and bowed frame members space the front and rear panels of the covering from each other in a three-dimensionally curved manner, which results in additional visual hiding power to the screen apparatus and further results in a novel appearance of sweeping arcuate visual lines based on the non-planar partial-see-through condition of the two-panel covering. A hub is provided for selectively interconnecting screens in a radial arrangement.

US Patent:

6851226, Feb 8, 2005

Filed:

Feb 15, 2002

Appl. No.:

10/076709

Inventors:

Bruce G. MacGregor - Palo Alto CA, US
Juan Carlos Bruce Novoa - Cupertino CA, US
Larry Cheng - Mountain View CA, US
Energy Cruse, II - Foster City CA, US
Thomas B. Eich - Palo Alto CA, US
Jesse A. Fourt - Palo Alto CA, US
David M. Gresham - East Grand Rapids MI, US
Alex T. Grishaver - Daly City CA, US
Joseph Lishing Hei - Palo Alto CA, US
Matthew D. Inouye - Foster City CA, US
Katherine J. Kuchenbecker - Menlo Park CA, US
James N. Ludwig - East Grand Rapids MI, US
Sven D. Newman - Menlo Park CA, US
Todd A. Pelman - San Francisco CA, US
Alexey Salamini - San Francisco CA, US
Franz Niklaus Schulz - St. Gallen, CH
Benjamin J. V. Tarbell - Menlo Park CA, US
Scott A. Whitman - Palo Alto CA, US
David M. Webster - San Francisco CA, US

Assignee:

Steelcase Development Corporation - Caledonia MI

International Classification:

E04H001/00

US Classification:

52 361, 52239, 522207

Abstract:

A freestanding partition panel for dividing a floor space includes a rigid partition frame having vertical side frame members and first and second horizontal frame members extending between the vertical side frame members to form a vertically enlarged opening through the frame, and an open space within the panel. At least one intermediate horizontal cross member extends across the vertically enlarged opening and defines upper and lower openings through the frame. The intermediate cross member and at least a selected one of the first and second horizontal frame members include a plurality of horizontally spaced apart attachment locations defining a plurality of discrete, serially adjacent mounting spaces. The partition panel further includes a utility unit that is mountable in a selected one of the mounting spaces. The partition panel further includes a first cover panel secured to the partition frame and extending horizontally between the side edge of the utility unit and the selected vertical side frame member.

US Patent:

D600930, Sep 29, 2009

Filed:

May 26, 2008

Appl. No.:

29/318689

Inventors:

Thomas Overthun - San Francisco CA, US
Lukas Scherrer - San Francisco CA, US
James Ludwig - Grand Rapids MI, US
Bruce Smith - Grand Rapids MI, US

Assignee:

Steelcase Inc. - Grand Rapids MI

International Classification:

0601

US Classification:

D 6366

US Patent:

D600949, Sep 29, 2009

Filed:

May 26, 2008

Appl. No.:

29/318690

Inventors:

Thomas Overthun - San Francisco CA, US
Lukas Scherrer - San Francisco CA, US
James Ludwig - East Grand Rapids MI, US
Bruce Smith - Grand Rapids MI, US

Assignee:

Steelcase Inc. - Grand Rapids MI

International Classification:

0601

US Classification:

D 6500, D6366

US Patent:

D636612, Apr 26, 2011

Filed:

Feb 1, 2010

Appl. No.:

29/355006

Inventors:

Thomas Overthun - San Francisco CA, US
Elger Oberwelz - San Francisco CA, US
David J. Battey - Caledonia MI, US
Sean M. Corcorran - East Grand Rapids MI, US
Nickolaus William Charles Deevers - Grand Rapids MI, US
Keith Robert Machin - Wyoming MI, US
James N. Ludwig - Grand Rapids MI, US

Assignee:

Steelcase Inc. - Grand Rapids MI

International Classification:

0601

US Classification:

D 6338

US Patent:

D636613, Apr 26, 2011

Filed:

Feb 1, 2010

Appl. No.:

29/355013

Inventors:

Thomas Overthun - San Francisco CA, US
Elger Oberwelz - San Francisco CA, US
David J. Battey - Caledonia MI, US
Sean M. Corcorran - East Grand Rapids MI, US
Nickolaus William Charles Deevers - Grand Rapids MI, US
Keith Robert Machin - Wyoming MI, US
James N. Ludwig - Grand Rapids MI, US

Assignee:

Steelcase Inc. - Grand Rapids MI

International Classification:

0601

US Classification:

D 6338

US Patent:

D646085, Oct 4, 2011

Filed:

Feb 1, 2010

Appl. No.:

29/355010

Inventors:

Thomas Overthun - San Francisco CA, US
Elger Oberwelz - San Francisco CA, US
James N. Ludwig - Grand Rapids MI, US
Sean M. Corcorran - East Grand Rapids MI, US

Assignee:

Steelcase Inc. - Grand Rapids MI

International Classification:

0601

US Classification:

D 6500, D6375

US Patent:

D646497, Oct 11, 2011

Filed:

Feb 1, 2010

Appl. No.:

29/355008

Inventors:

Thomas Overthun - San Francisco CA, US
Elger Oberwelz - San Francisco CA, US
David J. Battey - Caledonia MI, US
Sean M. Corcorran - East Grand Rapids MI, US
Nickolaus William Charles Deevers - Grand Rapids MI, US
Keith Robert Machin - Wyoming MI, US
James N. Ludwig - Grand Rapids MI, US

Assignee:

Steelcase Inc. - Grand Rapids MI

International Classification:

0601

US Classification:

D 6375