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Curtis R Stidham

from Willow Spring, NC
Age ~61

Curtis Stidham Phones & Addresses

  • Willow Spring, NC
  • Vickery, OH
  • 1271 Wilbur Rd, Medina, OH 44256 (330) 239-5062 (330) 239-6070
  • 4309 Torrington Ave, Cleveland, OH 44134
  • 34600 Solon Rd, Solon, OH 44139
  • Olmsted Falls, OH
  • Chagrin Falls, OH
  • Aurora, OH
  • 1271 Wilbur Rd, Medina, OH 44256 (330) 239-6070

Work

Position: Professional/Technical

Resumes

Resumes

Curtis Stidham Photo 1

Manager Product Development & Applications Engineering At Harger Lightning & Grounding

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Curtis Stidham Photo 2

Curtis Stidham

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Curtis Stidham Photo 3

Curtis Stidham

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Publications

Us Patents

Exothermic Welding Assembly

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US Patent:
7950568, May 31, 2011
Filed:
Jan 4, 2008
Appl. No.:
11/969572
Inventors:
Curtis R. Stidham - Medina OH, US
Mark S. Harger - Libertyville IL, US
Assignee:
Harger, Inc. - Grayslake IL
International Classification:
B23K 31/02
B28B 7/24
US Classification:
2282343, 164 53, 164 54, 249 83, 249121
Abstract:
An assembly is disclosed for exothermic welding comprising a mold which is formed of a material which withstands exothermic welding temperatures and includes a weld cavity therein for positioning at least two members which are to be exothermically welded together, and an ignition cavity communicating with the weld cavity. The mold is capable of accommodating any one of several exothermic welding procedures which may involve either a flint igniter or the use of an electrical igniter which is readily accommodated by the mold in the performance of several of the procedures. The electrical igniter is formed of a pair of flat, longitudinally extending conductor strips with a sheet of insulation laminated therebetween, a filament adjacent one end of the strips, and one or more positioning tabs adjacent one end of the strips. A cartridge is also provided which contains the weld metal and the electrical igniter and which may be positioned in the ignition cavity of the mold. The cartridge is formed of a material which is consumed during the welding procedure and may contain a plate of a different material adjacent its bottom which melts at a higher temperature than the materials of the cartridge.

Exothermic Welding Assembly

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US Patent:
8581149, Nov 12, 2013
Filed:
Apr 21, 2011
Appl. No.:
13/091863
Inventors:
Curtis R. Stidham - Medina OH, US
Mark S. Harger - Libertyville IL, US
Assignee:
Harger, Inc. - Grayslake IL
International Classification:
F23Q 3/00
B23K 35/34
US Classification:
219260, 219270, 228 51, 2282343, 361248, 361253, 1022025, 431132
Abstract:
An assembly is disclosed for exothermic welding comprising a mold which is formed of a material which withstands exothermic welding temperatures and includes a weld cavity therein for positioning at least two members which are to be exothermically welded together, and an ignition cavity communicating with the weld cavity. The mold is capable of accommodating any one of several exothermic welding procedures which may involve either a flint igniter or the use of an electrical igniter which is readily accommodated by the mold in the performance of several of the procedures. The electrical igniter is formed of a pair of flat, longitudinally extending conductor strips with a sheet of insulation laminated therebetween, a filament adjacent one end of the strips, and one or more positioning tabs adjacent one end of the strips. A cartridge is also provided which contains the weld metal and the electrical igniter and which may be positioned in the ignition cavity of the mold. The cartridge is formed of a material which is consumed during the welding procedure and may contain a plate of a different material adjacent its bottom which melts at a higher temperature than the materials of the cartridge.

Exothermic Welding Crucible And Method

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US Patent:
55822282, Dec 10, 1996
Filed:
Apr 20, 1995
Appl. No.:
8/425405
Inventors:
Curtis R. Stidham - Parma OH
Robert McPherson - Aurora OH
Thomas M. Dedo - Independence OH
Assignee:
Erico International Corporation - Solon OH
International Classification:
B23K 2300
US Classification:
164 54
Abstract:
An exothermic welding apparatus and method uses a crucible which can be used with a variety of exothermic weld metal material volumes to produce welds of different sizes while maintaining the desired diameter to height ratio for each volume of exothermic material. In one embodiment, the crucible includes a double or two stage cavity. The crucible includes a somewhat smaller lower stage which reduces the diameter for smaller volumes. This lower stage may have two disk seats to isolate the two stages from the tap hole. A disk seat is provided for a larger disk between the two stages. The crucible may include a volume of exothermic material in the smaller lower chamber, the larger upper chamber, or a combination of both. In a triple stage embodiment, a wider variety of exothermic material volumes or masses may be accommodated, all while maintaining the desired diameter to height ratio for each charge. Although the desired ratio is approximately one, the ratio range should be maintained from about 0.

Exothermic Welding Apparatus

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US Patent:
55336620, Jul 9, 1996
Filed:
Jan 31, 1995
Appl. No.:
8/381205
Inventors:
Curtis R. Stidham - Parma OH
Robert McPherson - Aurora OH
Richard E. Singer - Beachwood OH
Assignee:
Erico International Corp. - Soloon OH
International Classification:
B23K 2300
US Classification:
228 33
Abstract:
Exothermic welding apparatus includes a toggle frame jig for supporting vertically split molds. The toggle includes a post projecting parallel to the main pivot of the jig on which telescopes a crucible support. The crucible support includes a handle extending above the crucible when secured to the support. A quick acting toggle connects the support and post enabling the crucible to be assembled, cleaned, or prepared remote from the molds and then quickly installed and locked in position.

Exothermic Welding Jig, Molds Therefor And Method

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US Patent:
56603177, Aug 26, 1997
Filed:
Jan 31, 1995
Appl. No.:
8/381640
Inventors:
Richard E. Singer - Beachwood OH
Curtis R. Stidham - Parma OH
Robert McPherson - Aurora OH
Thomas M. Dedo - Independence OH
Michael A. Spychola - Northfield Center OH
Assignee:
Erico International Corporation - Solon OH
International Classification:
B23K 2300
US Classification:
228 443
Abstract:
An exothermic welding jig, molds for the jig, and a method of forming and manipulating the mold parts is disclosed. Upper and lower mold parts are included with a crucible fitted on and clamped to the upper mold part. The upper mold part and crucible may be moved as a unit to open and close the mold and also inverted when open for cleaning and inspection. The crucible can quickly be removed or snapped in place for mold or crucible change out. The jig will fit in cramped quarters and has a handle which may be used as a cane or supporting device. A toggle opens and closes the mold set and will hold the molds at any position where released. A mold system with diagonal sleeving makes it easier to form X-connections and other connections in tight or restrictive locations. The method includes the attachment and manipulative steps.

Electrical Connector And Method Of Making

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US Patent:
59159987, Jun 29, 1999
Filed:
Jun 19, 1996
Appl. No.:
8/666010
Inventors:
Curtis R. Stidham - Parma OH
David S. Flaherty - Lakewood OH
Robert G. McPherson - Aurora OH
Assignee:
Erico International Corporation - Solon OH
International Classification:
H01R 1109
US Classification:
439723
Abstract:
A low resistance electrical connector comprising a flat bar having multiple lateral fingers projecting from the bar to form flat compression pads for attachment of electrical connectors, and an insulating housing surrounding said bar and including relatively short cylindrical projections enclosing a short extent of each finger and presenting a circular shoulder at the proximal end of each finger or the inner end of each compression pad so that a rocket may telescope over the shoulder and seal the connection to each pad. The number of fingers projecting from each bar may vary and they may project from one or both lateral sides of the bar. The connector is made by laser or waterjet cutting a flat sheet or bar of conductive metal such as copper, aluminum or a laminate to form a blank. The sheet is cut to avoid excessive scrap so that the space between fingers becomes the fingers of another blank. The blank is deburred and placed in a mold to form the insulating housing and cylindrical projections.
Curtis R Stidham from Willow Spring, NC, age ~61 Get Report