| US 7,465,881 B2 | ||
| Coupler stem assembly | ||
| Wei-Chung Lin, Birmingham, Ala. (US) | ||
| Assigned to MacLean-Fogg Company, Mundelein, Ill. (US) | ||
| Filed on Feb. 04, 2005, as Appl. No. 11/51,718. | ||
| Prior Publication US 2006/0175079 A1, Aug. 10, 2006 | ||
| Int. Cl. H01B 17/26 (2006.01) | ||
| U.S. Cl. 174—152R [174/650; 174/165; 411/383] | 10 Claims |
| 1. A coupler stem assembly, comprising:
a) a coupler that includes:
i) polymer material that has been molded to a predetermined shape;
ii) an outer surface that is threaded and provided with a coupler axis;
iii) an inner surface that defines a cavity and that includes a retaining member; and
b) a stem that includes:
i) an outer stem surface that is provided with a stem axis and that is shaped to fit within the cavity defined by the inner
surface of the coupler; and
ii) a retaining surface that is located on the outer stem surface and shaped to engage with the retaining member of the inner
surface of the coupler, wherein the stem further comprises a groove and a guide surface that are located on the outer stem
surface, the groove is dimensioned to accept the retaining member and the guide surface is configured to orient the coupler
so that the retaining member contacts the retaining surface on the stem.
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