Method for barrier assembly
AssigneeEdward L. Gibbs
InventorsEdward L. Gibbs, Fred L. Givens, Gary W. Vonnahme
Life of this patent
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Abstract
A barrier such as a fence is formed by welding conductive upright members to conductive U-shaped rails by a projection resistance welding process. The rail includes at least one weld-forming region which projects within the rail channel, and may be formed within as a ridge, or as a longitudinally spaced series of nipple-shaped projections. The upright member is transversely positioned within the rail channel in contact with the weld-forming region. A welding current transmitted between the upright member and the rail causes the weld-forming region to at least partially melt and form a weld within the rail channel.
Claims55
A method of assembling a barrier from at least one conductive upright member and at least one elongate conductive rail comprising a flat web and a pair of opposed side walls extending from the web to define a rail channel, with at least one of the side walls having a weld-forming region which projects within the rail channel, comprising:
- transversely positioning an upright member within the rail channel such that it contacts the weld-forming region;
- contacting the upright member with an electrode having a first polarity;
- contacting the rail with an electrode having a second polarity opposed to the first polarity;
- and
- transmitting a welding current between the rail-contacting electrode and the upright member-contacting electrode to cause the weld-forming region to form a weld within the rail channel which joins the upright member to the rail.
A method of assembling a barrier panel from at least one conductive upright member and at least one elongate conductive rail comprising an elongate web and a pair of opposed side walls depending from the web to define a rail channel, each side wall having a first surface contiguous to the rail channel and an opposed second surface, the first surface having a weld forming region, comprising:
- transversely positioning an upright member within the rail channel such that it contacts the weld-forming region;
- contacting the upright member with an electrode having a first polarity;
- contacting the rail with an electrode having a second polarity opposed to the first polarity;
- and
- transmitting a welding current between the rail-contacting electrode and the upright member-contacting electrode to cause the weld-forming region to form a weld which joins the upright member to the rail.
A method of assembling a barrier panel from at least one conductive upright member and at least one elongate conductive channel-shaped rail, the rail having at least a first weldable structural element characterized by opposed first and second surfaces, in which the first surface is contiguous to a rail channel, comprising:
- transversely positioning an upright member within the rail channel such that it contacts at least a portion of the first surface;
- contacting the upright member with an electrode having a first polarity;
- contacting the rail with an electrode having a second polarity opposed to the first polarity;
- and
- transmitting a welding current between the rail-contacting electrode and the upright member-contacting electrode to produce a weld which joins the upright member to the rail.
A method of assembling a barrier from at least one conductive upright member and at least one elongate conductive rail comprising a web and a pair of opposed side walls extending from the web to define a rail channel, comprising:
- transversely positioning an upright member within the rail channel such that the upright member and a side wall contact at a projection;
- contacting the upright member with an electrode having a first polarity;
- contacting the rail with an electrode having a second polarity opposed to the first polarity;
- and
- transmitting a welding current between the rail-contacting electrode and the upright member-contacting electrode to cause the projection to form a weld within the rail channel which joins the upright member to the side wall.
A method of assembling a barrier panel from at least one conductive upright member and at least one elongate conductive channelshaped rail, the rail having at least a first structural element characterized by opposed first and second surfaces, in which the first surface is contiguous to a rail channel, comprising:
- transversely positioning an upright member within the rail channel such that such that the upright member and the first surface of the first structural element are in contact;
- contacting the upright member with an electrode having a first polarity;
- contacting the rail with an electrode having a second polarity opposed to the first polarity;
- and
- transmitting a welding current between the rail-contacting electrode and the upright member-contacting electrode to produce a weld which joins the upright member to the rail.
Dependencies are inferred from the claim text.