High Visibility Plasma Arc Torch
First Claim
Patent Images
1. An electrode for a high visibility plasma arc cutting torch comprising:
- an elongated electrode body having a first end and a second end, the body defining a bore in the first end for receiving an insert, the electrode body including;
(i) a first body portion extending from the first end and having a first length and a first width; and
(ii) a second body portion extending to the second end and comprising a second length and a second width,wherein a ratio of the second width to the first width is at least about 2, and a ratio of the first length to the first width is at least about 3.
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0 Petitions
Accused Products
Abstract
An improved torch providing high visibility of the work zone to the operator, an increased viewing angle, and a reduced obstruction angle. The high visibility torch includes consumables adapted to maintain torch and consumables performance while reducing visual obstruction to the user, by coordinating, balancing, and optimizing design requirements and stack up tolerances. The invention also includes a related low-profile safety switch that promotes workpiece visibility and minimizes view obstruction.
55 Citations
76 Claims
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1. An electrode for a high visibility plasma arc cutting torch comprising:
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an elongated electrode body having a first end and a second end, the body defining a bore in the first end for receiving an insert, the electrode body including; (i) a first body portion extending from the first end and having a first length and a first width; and (ii) a second body portion extending to the second end and comprising a second length and a second width, wherein a ratio of the second width to the first width is at least about 2, and a ratio of the first length to the first width is at least about 3. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An electrode for a high visibility plasma arc cutting torch comprising:
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an elongated electrode body having a first end and a second end, a distance from the first end to the second end defining an overall length, the body defining a bore in the first end for receiving an insert, the electrode body including; (i) a first body portion extending from the first end and having a first length and a first width; and (ii) a second body portion extending to the second end and comprising a second length and a second width, wherein a ratio of the second width to the first width is at least about 2, and a ratio of the first length to the overall length is at least about 0.6. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An electrode for a plasma arc cutting torch comprising:
an elongated electrode body having a first end and a second end, a distance from the first end to the second end defining an overall length and a bore disposed in the first end for receiving an insert, the electrode body including; a first body portion extending from the first end and having a first length and a first width, a ratio of the first length to the first width having a value of between about 4 and about 9; and a second body portion extending to the second end and comprising a second length and a second width, the second width greater than the first width. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A gas control swirl ring for a high visibility plasma arc torch comprising:
a body having a first end and a second end with a central gas passage extending from the first end to the second end, the body including; a first body portion with a first outside diameter and a plurality of gas passages in fluid communication with the central gas passage; and a second body portion having a second outside diameter which is larger than the first outside diameter. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A switch assembly for detecting a position of a consumable torch component in a plasma cutting torch, comprising:
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a switch mounted substantially within a torch handle of the torch and electrically connected to a control circuit of the torch; a torch body at least partially contained within the torch handle; and a pin having a first end and a second end, the pin slidably disposed in a passage through the torch body, the first end disposed to engage the consumable torch component and the second end disposed to engage the switch, wherein the second end of the pin activates the switch when the first end of the pin engages the torch component. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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61. A switch assembly for detecting a position of a removable torch component in a plasma cutting torch, comprising:
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a switch mounted substantially within a torch handle of the torch and electrically connected to a control circuit of the torch; a torch body at least partially contained within the torch handle and defining an axial passage therein, a pathway defined at least in part by the passage and extending between the torch component and the switch; and a pin slideably disposed in the at least part of the pathway, wherein one end of the pin engages the switch and another end of the pin engages the torch component. - View Dependent Claims (62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76)
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Specification