H - Electricity – 01 – B
Patent
H - Electricity
01
B
337/123
H01B 17/02 (2006.01) H01B 17/08 (2006.01)
Patent
CA 1293543
62-64,214 A SUSPENSION INSULATOR Abstract of the Disclosure A suspension insulator having an insulating member with a head portion of the porcelain and a shed, a metal cap cemented to the top of the head portion of the porcelain, and a metal pin cemented to the lower end of the head portion of the porcelain at a pin hole formed in the head portion of the porcelain. The pin hole has a closed top and a downward opening, and its inside surface includes a cylindrical surface portion around the opening, a curved top surface and a round corner surface forming a smooth boundary between the cylindrical surface portion and the curved top surface. The cemented part of the inside surface of the hole has sands rigidly deposited thereon over a range from its lower end to a level within ?3 mm of junction between the cylindrical surface portion and the round corner surface.
558051
Moriya Tsutomu
Nozaki Hiroshi
Moriya Tsutomu
Ngk Insulators Ltd.
Nozaki Hiroshi
Smart & Biggar
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