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Primary Examiner: Salce, Patrick R.
Assistant Examiner:
Attorney: Burns; Robert E., Lobato; Emmanuel J., Adams; Bruce L.

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Title: Lightning arrester device

Abstract: A stack of nonlinear resistors of sintered zinc oxide superposing one another is connected across a bottom of a grounded cylindrical housing and a high voltage conductor insulatingly supported by the housing. Within the housing a shielding conductor slantingly hangs from the connection of the stack and conductor. Alternatively, the shielding electrode may extend from the high voltage conductor to run along the longitudinal axis of the housing. A plurality of nonlinear resistors are divided in several stacks and serially interconnected between the shielding conductor and the inside of the housing to be radially outward inclined to the shielding electrode. Such stacks may be disposed close to the free end portion of the shielding electrode.

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Inventors: Nitta, Tohei (Amagasaki, JP)
Shibuya, Yoshikazu (Amagasaki, JP)
Fuziwara, Yukio (Amagasaki, JP)

Application Number: 916053
Filing Date: 1978-06-16
Publication_date: 1980-08-26
Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP)
Primary Class(es): 361/120 361/127
Other Classes:
US Patent Ref:

3649875	Mar, 1972	Nagai et al.	361/130.
3727108	Apr, 1973	Westrom	361/127.
3753045	Aug, 1973	Osmundsen et al.	361/120.
3767973	Oct, 1973	Osmundsen et al.	361/120.
3806765	Apr, 1974	Matsuoka et al.	361/128.
3842318	Oct, 1974	Nitta	361/120.

Other Refs: Other References: "Gapless Arrester Shows Promise," Electrical World, Dec. 15, 1976, Transmission/Distribution.