Metal fitting for composite insulators

Details Metal fitting for composite insulators Metal fitting for composite insulators

1994-03-24

1996-07-23

Picard, Leo P.

Electricity: conductors and insulators

Insulators

With terminal elements

174158R, 174179, 174209, H01B 1702, H01B 1740

Patent

active

055391559

ABSTRACT:
A metal fitting for a composite electrical insulator (1) including a plastic rod (2), e.g., an FRP rod. The metal fitting (4) includes a radially inwardly deformable sleeve portion having a bore (5) into which an end portion of the rod (1) can be inserted for fixedly securing the metal fitting (4) to the rod (1). The bore (5) in the metal fitting (4) has an inner surface which is formed with fine protrusions (7). These protrusions (7) provide a satisfactory resistivity to the tensile force applied to the insulator (1), to thereby effectively prevent withdrawal of the rod (2) from the metal fitting (4) when it is in use.

REFERENCES:
patent: 3698749 (1972-10-01), Yonkers
patent: 4107455 (1978-08-01), Richards
patent: 4421948 (1983-12-01), Willem
patent: 4435615 (1984-03-01), Kaczerginski et al.
patent: 5253946 (1993-10-01), Watkins

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