Gasket having upper and lower active layers and a spacer layer
Abstract:
A gasket (20) is provided with a uniform thickness spacer layer (66) between two metal upper active layers (78, 80) and two lower active layers (82,84). Each of the layers has aligned openings. A first tab (158, 140) is formed from one of the upper active layers and is located in a first slot (168) in the spacer layer. A second tab (132, 150) is formed in a flange of one of the upper active layers and is located in a second slot (174) located in the spacer layer. A third tab (190, 208) is formed from one of the lower active layers and is located in a third slot (212) located in the spacer layer. A fourth tab (176, 194) is formed in a flange of one of the lower active layers and is located in a fourth slot (218) located in the spacer layer.
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