ROBERT J RACE
Engineers in Saint Paul, MN

2011014, Jun 23, 2011

Aug 25, 2009

12/547300

Paul J. FORSBERG - Windermere FL, US
Robert J. RACE - Eagan MN, US
John F. DOLAN - Golden Valley MN, US
Craig S. WYLER - Papillion NE, US
GARRY GEHRKE - JORDAN MN, US

E04C 2/20, B44F 9/04, B44F 9/02, B28B 11/04, B44F 9/00

523091, 428 15, 428151, 425 94, 428141

The present invention relates to landscaping products (e.g. retaining wall building materials, landscaping stones/boulders, pavers . . . ) and wall veneering products that provide a replica image of a natural stone, rock, brick or wood surface. Such landscaping and veneering products are easily installable due to its lightweight characteristics and engagable design. The present invention further includes methods of use for such landscaping and veneering products and also includes systems for assembling such products to provide pleasing landscaping and wall veneering arrangements. The present invention also includes methods of manufacture of these imaged stone products, which ensures the natural appearance of stone, rock, brick or wood by imaging a natural surface, such as stone or a rock, preparing a mold from that image to mass produce a replica of that particular surface and applying a coating to the surface of the replica to provide the appearance and texture of the natural stone or rock.

7168892, Jan 30, 2007

May 14, 1999

09/312352

Robert A. MacDonald - Plymouth MN, US
Robert J. Race - Eagan MN, US

Keystone Retaining Wall Systems, Inc. - Bloomington MN

B02D 29/02

405284, 405286

A retaining wall block () has parallel top and bottom faces (), a front face (), a rear face (), first and second side wall faces () and a vertical plane of symmetry (S) extending between the front and rear faces (). The block () is formed as a body portion () including the front face (), a head portion () including the rear face () and a neck portion () connecting the body portion () and the head portion (). The body, head and neck portions () each extend between the top and bottom faces () and between the first and second side wall faces (). An opening ()′ extends through the neck portion () from the top face () to the bottom face (), dividing the neck portion () into first and second neck wall members () extending rearwardly from the body portion () to the head portion (). First and second pin holes ( and ) are each disposed in the body portion () and open onto the top face () for receiving a pin () with a free end of the pin protruding beyond the top face. First and second pin receiving cavities () are each disposed in the body portion () and open onto the bottom face () for receiving the free end of a pin () received in a pin hole ( and ) of an adjacent block () disposed therebeneath so as to interlock the blocks () with a predetermined setback.

7448830, Nov 11, 2008

Jan 26, 2007

11/698341

Robert A. MacDonald - Plymouth MN, US
Robert J. Race - Eagan MN, US

Keystone Retaining Wall Systems, Inc. - Bloomington MN

B02D 29/02

405284, 405286

A retaining wall block () has parallel top and bottom faces (), a front face (), a rear face (), first and second side wall faces () and a vertical plane of symmetry (S) extending between the front and rear faces (). The block () is formed as a body portion () including the front face (), a head portion () including the rear face () and a neck portion () connecting the body portion () and the head portion (). The body, head and neck portions () each extend between the top and bottom faces () and between the first and second side wall faces (). An opening ()′ extends through the neck portion () from the top face () to the bottom face (), dividing the neck portion () into first and second neck wall members () extending rearwardly from the body portion () to the head portion (). First and second pin holes ( and ) are each disposed in the body portion () and open onto the top face () for receiving a pin () with a free end of the pin protruding beyond the top face. First and second pin receiving cavities () are each disposed in the body portion () and open onto the bottom face () for receiving the free end of a pin () received in a pin hole ( and ) of an adjacent block () disposed therebeneath so as to interlock the blocks () with a predetermined setback.

2011018, Jul 28, 2011

Dec 17, 2010

12/971672

Edward Alan Knudson - Annandale MN, US
John F. Dolan - Golden Valley MN, US
Robert J. Race - Eagan MN, US
Vishal N. Lokhande - Minneapolis MN, US
Daniel Darst - Zimmerman MN, US
Lee Gordon Macklem - New Hope MN, US
Eric Jason Krause - Big Lake MN, US

NEW TECHNOLOGY RESOURCES, INC. - Edina MN

E02D 5/00

405284

The present invention relates to environment resistant landscaping products, such as retaining wall and earth retention products, edgers, paving stones and the like, that provide a natural earthen appearance, such as rock, stone, sand, soil, clay, wood, trees and foliage, water, or any other natural earthen appearance. The present invention also includes a mass confinement cell that may be used in retaining walls and earth retention systems that has a natural earthen appearance and is resistant to damage and wear caused by the environment. The mass confinement cells are generally light-weight and include a continuous chamber that at least partially aligns with confinement cells positioned above and below, thereby allowing the intermingling of fill material between adjacent cells. The mass confinement cells are capable of accepting and retaining any type of filling material. The filling material provides weight, stability and security to a retaining wall constructed of such mass confinement cells.

2003001, Jan 16, 2003

Jul 12, 2001

09/904037

Robert Race - Eagan MN, US

E02D003/02

405/284000

Connectors for use in a retaining wall and a retaining wall having grooved blocks configured to receive the connector. Connectors can be used in various orientations within the grooves of the blocks. In a retaining wall, a flexible geosynthetic material fits into a channel of a channel connector, and is held in place by an elongate bar. The connector prevents abrasion of geosynthetic material. The connector can also be a plurality of spaced-apart projections for use with an apertured, relatively rigid geogrid. The connectors hold geogrid firmly in place, providing for increased connection capacity.

6854231, Feb 15, 2005

Jul 12, 2001

09/904038

Robert A. MacDonald - Plymouth MN, US
Robert J. Race - Eagan MN, US

Keystone Retaining Wall Systems, Inc. - Bloomington MN

E04C002/04, E02D029/02

52562, 52574, 52604, 52606, 52608, 5274712, 405284, 405286

A retaining wall block system having multiple sizes and shapes of blocks with differently dimensioned, interchangeable front and back faces. The blocks are used to construct an irregularly textured wall having a weathered, natural appearance. Multiple channels in the lower face of the block are used to engage pins in pin-receiving apertures to form an attachment system. Horizontal reinforcing members are also used in the channels and vertical reinforcing members are used in cores of adjacent blocks for reinforcing a wall. Reinforcing geosynthetic materials can also be firmly held in a wall by means of the pins or by connectors adapted to fit in the block channels.

2011010, May 12, 2011

Jan 17, 2011

13/007828

Robert A. MacDonald - Plymouth MN, US
Robert J. Race - Eagan MN, US

KEYSTONE RETAINING WALL SYSTEMS, INC. - Bloomington MN

E04C 2/04

52609

A retaining wall block has parallel top and bottom faces, a front face, a rear face, first and second side wall faces and a vertical plane of symmetry extending between the front and rear faces. The block is formed as a body portion including the front face, a head portion including the rear face and a neck portion connecting the body portion and the head portion. The body, head and neck portions each extend between the top and bottom faces and between the first and second side wall faces. An opening extends through the neck portion from the top face to the bottom face, dividing the neck portion into first and second neck wall members extending rearwardly from the body portion to the head portion.

6912823, Jul 5, 2005

Jul 11, 2002

10/194433

Robert A. MacDonald - Plymouth MN, US
Robert J. Race - Eagan MN, US

Keystone Retaining Wall Systems, Inc. - Bloomington MN

E04C002/04, E02D029/02

52574, 52562, 52605, 52608, 5274712, 405284, 405262

A retaining wall block system having multiple sizes and shapes of blocks with differently dimensioned, interchangeable front and back faces. The blocks are used to construct an irregularly textured wall having a weathered, natural appearance. Multiple channels in the lower face of the block are used to engage pins in pin-receiving apertures to form an attachment system. A side connection system is particularly useful for stabilizing free-standing walls. Horizontal reinforcing members are also used in the channels and vertical reinforcing members are used in cores of adjacent blocks for reinforcing a wall. Reinforcing geosynthetic materials can also be firmly held in a wall by means of the pins or by connectors adapted to fit in the block channels.

2011015, Jun 23, 2011

Jan 10, 2011

12/987835

Edward Alan Knudson - Annandale MN, US
John F. Dolan - Golden Valley MN, US
Robert J. Race - Eagan MN, US
Timothy Paul Bendell - Cologne MN, US
Vishal Nanasaheb Lokhande - Minneapolis MN, US
Daniel Darst - Zimmerman MN, US
Eric Jason Krause - Big Lake MN, US

NEW TECHNOLOGY RESOURCES, INC. - Edina MN

E02D 17/20

405284

The present invention relates to mass confinement cells that may be used in retaining walls and earth retention systems that has a natural earthen appearance or other aesthetic design and is resistant to damage and wear caused by the environment. The mass confinement cells are generally light-weight and include a continuous chamber that at least partially aligns with confinement cells positioned above and below, thereby allowing the intermingling of fill material between adjacent cells. The mass confinement cells are capable of accepting and retaining any type of filling material. The filling material provides weight, stability and security to a retaining wall constructed of such mass confinement cells.

7654776, Feb 2, 2010

Apr 17, 2008

12/105064

Robert A. MacDonald - Plymouth MN, US
Robert J. Race - Eagan MN, US

Keystone Retaining Wall Systems, Inc. - Bloomington MN

E02D 29/02

405284, 405286

A retaining wall block has parallel top and bottom faces, a front face, a rear face, first and second side wall faces and a vertical plane of symmetry extending between the front and rear faces. The block is formed as a body portion including the front face, a head portion including the rear face and a neck portion connecting the body portion and the head portion. The body, head and neck portions each extend between the top and bottom faces and between the first and second side wall faces. An opening extends through the neck portion from the top face to the bottom face, dividing the neck portion into first and second neck wall members extending rearwardly from the body portion to the head portion.