Guy C Nelson

US Patent:

20060162102, Jul 27, 2006

Filed:

Jan 20, 2006

Appl. No.:

11/337206

Inventors:

Guy Nelson - Grand Rapids MI, US

International Classification:

E01D 21/00

US Classification:

014077100

Abstract:

The prefabricated, prestressed bridge system comprises one or more prefabricated, prestressed bridge modules. Each module includes one or more steel beams arranged in a first direction on three or more supporting formwork elements that are arranged in a second direction generally perpendicular to the first direction. Rebar runs through the steel beams in a direction perpendicular to the steel beams and above at least two of the supporting formwork elements. Concrete material is poured to form concrete diaphragms on top of and around the rebar at locations above the supporting formwork elements. After the diaphragms are poured, one or more of the supporting formwork elements are adjusted to stress the steel beams. A concrete deck is fabricated over the surface atop the diaphragms and the steel beams such that the resulting compression stress of the concrete deck secures in place the stresses imparted to the steel beams.

US Patent:

20130142577, Jun 6, 2013

Filed:

Oct 26, 2011

Appl. No.:

13/317714

Inventors:

Guy C. Nelson - Byron Center MI, US
John M. Ogorchock - Montgomery TX, US
Peter M. Sevick - Tomball TX, US

International Classification:

E02D 29/02
E02D 17/20

US Classification:

405262, 4053027

Abstract:

A crimped connection system and methods for use in connection with the construction of earth walls is disclosed. A grid-type soil mat may be provided with a number of crimped ends. The crimped ends may be adapted for engagement through the use of a locking member with another soil mat or with a plurality of anchors partially embedded within a precast concrete panel. The plurality of anchors may be formed as part of a gang or unitary structure to facilitate alignment of the anchors when being cast into the precast concrete panels.

US Patent:

20210363709, Nov 25, 2021

Filed:

Aug 10, 2021

Appl. No.:

17/398734

Inventors:

- Omaha NE, US
Guy C. Nelson - Byron Center MI, US

Assignee:

Valmont Industries, Inc. - Omaha NE

International Classification:

E01D 2/04
E01D 1/00
E04C 3/294

Abstract:

Improved tub girders and related manufacturing methods are provided, such as for example for use in road construction in connection with concrete bridges. Disclosed improved tub girders may include upper flanges that extending inwardly or outwardly. Disclosed improved tub girders may be provided with camber along the length of the girders. Ends of the disclosed improved tub girders may be provided with diaphragms. Disclosed improved tub girders may include a base section including one more access ports for enabling inspection of the interior of the girders after installation. Disclosed improved tub girders may include a plurality of stud members extending upwardly from upper flanges for engaging with a concrete bridge deck. Disclosed tub girders may be providing with a coating, such as galvanized, aluminized or metalized, to fight corrosion and extend life and limit need for inspection.

US Patent:

20200354905, Nov 12, 2020

Filed:

Jul 21, 2020

Appl. No.:

16/934611

Inventors:

- Omaha NE, US
Guy C. Nelson - Byron Center MI, US

Assignee:

Valmont Industries, Inc. - Omaha NE

International Classification:

E01D 19/12
E01D 2/02
E01D 2/00

Abstract:

A method for making a prefabricated, prestressed module includes arranging one or more steel beams atop a supporting formwork element in a direction transverse to the supporting formwork element and arranging one or more precast deck elements across the one or more steel beams to create a substantially continuous surface. The one or more precast deck elements have pockets for receiving connectors that protrude from the one or more steel beams. The method also includes arranging the supporting formwork element to allow the one or more steel beams to bend into a cambered shape to impart compressive stresses to a bottom flange of the one or more steel beams and tension stresses to a top flange of the one or more steel beams and inserting grout into the pockets to hold the cambered shape and to bond the one or more precast deck elements to the connectors and the top flange.

US Patent:

20200347561, Nov 5, 2020

Filed:

Jul 20, 2020

Appl. No.:

16/933360

Inventors:

- Omaha NE, US
Guy C. Nelson - Byron Center MI, US

Assignee:

Valmont Industries, Inc. - Omaha NE

International Classification:

E01D 2/04
E01D 1/00
E04C 3/294

Abstract:

Improved tub girders and related manufacturing methods are provided, such as for example for use in road construction in connection with concrete bridges. Disclosed improved tub girders may include upper flanges that extending inwardly or outwardly. Disclosed improved tub girders may be provided with camber along the length of the girders. Ends of the disclosed improved tub girders may be provided with diaphragms. Disclosed improved tub girders may include a base section including one more access ports for enabling inspection of the interior of the girders after installation. Disclosed improved tub girders may include a plurality of stud members extending upwardly from upper flanges for engaging with a concrete bridge deck. Disclosed tub girders may be providing with a coating, such as galvanized, aluminized or metalized, to fight corrosion and extend life and limit need for inspection.

US Patent:

20200256022, Aug 13, 2020

Filed:

Feb 12, 2019

Appl. No.:

16/273928

Inventors:

- Omaha NE, US
Guy C. Nelson - Byron Center MI, US

International Classification:

E01D 2/04
E01D 1/00
E04C 3/294

Abstract:

Improved tub girders and related manufacturing methods are provided, such as for example for use in road construction in connection with concrete bridges. Disclosed improved tub girders may include upper flanges that extending inwardly or outwardly. Disclosed improved tub girders may be provided with camber along the length of the girders. Ends of the disclosed improved tub girders may be provided with diaphragms. Disclosed improved tub girders may include a base section including one more access ports for enabling inspection of the interior of the girders after installation. Disclosed improved tub girders may include a plurality of stud members extending upwardly from upper flanges for engaging with a concrete bridge deck. Disclosed tub girders may be providing with a coating, such as galvanized, aluminized or metalized, to fight corrosion and extend life and limit need for inspection.

US Patent:

20180135261, May 17, 2018

Filed:

Nov 15, 2017

Appl. No.:

15/813423

Inventors:

Guy C. Nelson - Wyoming MI, US

International Classification:

E01D 19/12
E01D 2/02

Abstract:

A method for making a prefabricated, prestressed module includes arranging one or more steel beams atop a supporting formwork element in a direction transverse to the supporting formwork element and arranging one or more precast deck elements across the one or more steel beams to create a substantially continuous surface. The one or more precast deck elements have pockets for receiving connectors that protrude from the one or more steel beams. The method also includes arranging the supporting formwork element to allow the one or more steel beams to bend into a cambered shape to impart compressive stresses to a bottom flange of the one or more steel beams and tension stresses to a top flange of the one or more steel beams and inserting grout into the pockets to hold the cambered shape and to bond the one or more precast deck elements to the connectors and the top flange.

US Patent:

20160177533, Jun 23, 2016

Filed:

Dec 22, 2014

Appl. No.:

14/578702

Inventors:

Robert E. May - Friendswood TX, US
Guy C. Nelson - Byron Center MI, US

International Classification:

E02D 29/02
E02D 5/80

Abstract:

A connection system for stabilizing an earth wall is disclosed. The system may include a geosynthetic loop assembly partially embedded within a concrete panel. The geosynthetic loop assembly may include a plurality of spaced apart geosynthetic loops that may be connected by at least one transverse geosynthetic strip. The geosynthetic loops are partially embedded within the concrete panel and partially extending from a front face of the concrete panel in generally aligned relationship. The system may also include a geosynthetic reinforcement web including a plurality of longitudinal geosynthetic strips and a plurality of transverse geosynthetic strips. The web may be folded to form a fold and the longitudinal strips adjacent the fold may be positioned adjacent the geosynthetic loops extending from the front face of the concrete panel in aligned relationship to form a passageway. The system may include a locking member disposed in the passageway to engage the geosynthetic loop assembly to the geosynthetic reinforcement web.