Erik L Gotlund

US Patent:

20120291976, Nov 22, 2012

Filed:

May 17, 2011

Appl. No.:

13/109870

Inventors:

Erik Gotlund - Green Oaks IL, US
Vaughn Makary - Muskego MI, US
Nick Salamasick - Nunica MI, US

International Classification:

B22C 9/00

US Classification:

164 1

Abstract:

A method of manufacturing a bolster of a rail car that includes a pair of shoe pockets at respective ends configured to be inserted into bolster openings of respective side frames includes providing a bolster pattern for forming a drag portion and cope portion of a mold. Cores that define an interior region of a cast bolster are also provided. The bolster pattern and the cores are configured to constrain shoe pocket angles within about 0.5.

US Patent:

20120291977, Nov 22, 2012

Filed:

May 17, 2011

Appl. No.:

13/109857

Inventors:

Erik Gotlund - Green Oaks IL, US
Maureen Werner - Bolingbrook IL, US
Vaughn Makary - Muskegon MI, US

International Classification:

B22C 9/10

US Classification:

164 6, 164271

Abstract:

A method for manufacturing cores utilized in conjunction with a mold for casting a side frame of a railway car truck includes forming separate drag and cope portions of at least one pedestal core. The drag and cope portions of the pedestal core define an interior region of a pedestal of the side frame. The drag and cope portions are attached form a pedestal core for insertion into a mold.

US Patent:

20120291979, Nov 22, 2012

Filed:

May 17, 2011

Appl. No.:

13/109866

Inventors:

Erik Gotlund - Green Oaks IL, US
Vaughn Makary - Muskegon MI, US
Nick Salamasick - Nunica MI, US

International Classification:

B22D 25/02

US Classification:

164137

Abstract:

A method of manufacturing a side frame of a rail car, where the side frame includes a pair of pedestals for mounting wheel sets, includes providing a side frame pattern for forming a drag portion and a cope portion of a mold. Cores that define an interior region of a cast side frame are also provided. The side frame pattern and the cores are configured to constrain a spacing between the pair of pedestals to within about 0.038 inches.

US Patent:

20120291661, Nov 22, 2012

Filed:

May 17, 2011

Appl. No.:

13/109843

Inventors:

Erik Gotlund - Green Oaks IL, US
Maureen Werner - Bolingbrook IL, US
Vaughn Makary - Muskegon MI, US

International Classification:

B61F 5/52
B22D 31/00
B22C 9/22

US Classification:

1052061, 164 6, 164 701, 164271

Abstract:

A method of manufacturing a side frame mold for casting a side frame of a railway car truck includes forming a drag and a cope portion of a mold from a casting material to define an exterior surface of a drag portion and cope portion, respectively, of the side frame. The mold includes a portion for casting the pedestal jaw of the side frame. The drag and the cope portions are then cured.

US Patent:

20120291662, Nov 22, 2012

Filed:

May 17, 2011

Appl. No.:

13/109880

Inventors:

Erik Gotlund - Green Oaks IL, US
Vaughn Makary - Muskegon MI, US

International Classification:

B61F 5/00
B22D 31/00
B22C 9/22
B22C 1/22

US Classification:

105230, 164137, 164 6, 164 44, 164527, 164 701, 164271

Abstract:

A method for manufacturing a bolster of a railway car truck includes providing a drag portion and a cope portion of a mold. In a main body section of the mold, a parting line that separates the drag portion from the cope portion is substantially centered between portions of the mold that define brake window openings in sides of the bolster. One or more cores are inserted into the mold and a molten material is poured into the mold to thereby case the bolster.

US Patent:

20170232503, Aug 17, 2017

Filed:

Nov 28, 2016

Appl. No.:

15/362381

Inventors:

- Wilmington DE, US
Jerry R. Smerecky - South Barrington IL, US
Ronald P. Sellberg - Naperville IL, US
Arthur A. Gibeaut - Erie IL, US
Erik L. Gotlund - Green Oaks IL, US
Maureen Werner - Bolingbrook IL, US
Vaughn Makary - Muskegon MI, US
Jon R. Jeambey - Naperville IL, US
James A. Pike - Fairview PA, US
Jason C. Bryant - Erie PA, US
Jonathan A. Stull - Erie PA, US
William A. Kurtzhals - Erie PA, US
Roshan N. Manibharathi - Des Plaines IL, US

International Classification:

B22C 9/02
B22D 25/02
B22C 9/24
B61F 5/52
B22C 1/00

Abstract:

A method for casting a railroad component such as a component of a railway car truck. The component of the railway car truck may be, e.g., a side frame or a bolster of the railway car truck. The method includes manufacturing the railroad component made of steel in a no-bake manufacturing process including use of a chemically-bonded sand system that results in a sand mold from which the railroad component is cast. The railroad component resulting from the no-bake manufacturing process has a surface finish less than 750 micro-inches RMS, resulting in increased fatigue life compared to a railroad component manufactured by a green sand process.

US Patent:

20160031001, Feb 4, 2016

Filed:

Jul 17, 2015

Appl. No.:

14/802363

Inventors:

- Wilmington DE, US
Erik L. Gotlund - Green Oaks IL, US

International Classification:

B22C 9/22
B22C 9/02
B22D 25/02
B61F 5/12

Abstract:

A method of manufacturing a friction wedge of a rail car includes forming, in drag and cope portions of a mold, at least one cavity that defines at least some exterior features of at least one friction wedge. At least one core is inserted into the drag portion adjacent to the cavity. The core includes at least one surface configured to define a column face of the friction wedge. Rigging is formed in the drag and cope portion of the mold. The rigging includes a down sprue, at least one ingate, and at least one runner for directing molten material to the cavity. Molten material is poured into the mold to form the friction wedge casting. The friction wedge casting is removed from the mold. Rigging is removed from the friction wedge casting and the friction wedge casting is finished.

US Patent:

20140102330, Apr 17, 2014

Filed:

Mar 14, 2013

Appl. No.:

13/828074

Inventors:

- Wilmington DE, US
Erik Gotlund - Green Oaks IL, US

Assignee:

Nevis Industries LLC - Wilmington DE

International Classification:

B61F 5/12

US Classification:

1051982, 164 6

Abstract:

A method of manufacturing a friction wedge of a rail car includes forming, in drag and cope portions of a mold, at least one cavity that defines at least some exterior features of at least one friction wedge. At least one core is inserted into the drag portion adjacent to the cavity. The core includes at least one surface configured to define a column face of the friction wedge. Rigging is formed in the drag and cope portion of the mold. The rigging includes a down sprue, at least one ingate, and at least one runner for directing molten material to the cavity. Molten material is poured into the mold to form the friction wedge casting. The friction wedge casting is removed from the mold. Rigging is removed from the friction wedge casting and the friction wedge casting is finished.