Resistive grid systems
AssigneeTransportation IP Holdings, LLC
InventorsLaura Cooper, Theodore Brown, Jeffrey John Wolff
Life of this patent
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Abstract
A resistive grid includes a frame and at least one resistive element. The frame has a first frame end and a second frame end opposite the first frame end. The first frame end and the second frame end are joined by frame sides. The first frame end has a first length that is shorter than a second length of the second frame end. The at least one resistive element extends between the first frame end and the second frame end. The at least one resistive element has a first portion proximate the first frame end, and a second portion proximate the second frame end. The first portion is configured to have one or both of decreased heat generation or decreased electrical resistance relative to the second portion.
Claims18
A resistive grid comprising:
- a frame having a first frame end and a second frame end opposite the first frame end, the first frame end and the second frame end are joined by frame sides;
- and
- at least one resistive element extending between the first frame end and the second frame end, the at least one resistive element having a first portion and a second portion, wherein the first portion is configured to have one or both of decreased heat generation or decreased electrical resistance relative to the second portion.
A resistive grid comprising:
- a frame having a first frame end and a second frame end opposite the first frame end, the first frame end and the second frame end are joined by frame sides, the first frame end having a first length that is shorter than a second length of the second frame end;
- and
- a plurality of resistive plates extending between the first frame end and the second frame end, the resistive plates having a first plate end proximate to the first frame end, and a second plate end proximate to the second frame end, the resistive plates having a first plate portion proximate the first plate end and a second plate portion proximate the second plate end, wherein the first plate portion is configured to have one or both of decreased heat generation or decreased electrical resistance relative to the second plate portion.
A resistive grid system comprising:
- a first resistive grid comprising:
- a first frame having a first frame end and a second frame end opposite the first frame end, the first frame end and the second frame end are joined by frame sides, the first frame end having a first length that is shorter than a second length of the second frame end;
- and
- at least one first resistive element extending between the first frame end and the second frame end, the at least one first resistive element having a first portion proximate the first frame end, and a second portion proximate the second frame end, wherein the at least one first resistive element defines portions that are unevenly spaced along the first frame end;
- and
- a second resistive grid comprising:
- a second frame aligned with the first frame, and second attachment points aligned with the first attachment points;
- and
- at least one second resistive element that is coupled to offset attachment points relative to the at least one first resistive element,
- wherein the first frame comprises first attachment points along the first frame end, and
- wherein the at least one first resistive element is connected to alternating first attachment points.
Dependencies are inferred from the claim text.