Appeal No. 1998-1981
Application No. 08/695,899
particular, the invention relates to high voltage insulators
that are designed to reduce or eliminate corrosion and erosion
effects associated with current leakage and corona discharge
effects.
Independent claim 1 is reproduced as follows:
1. Insulator terminator device, for use with a high voltage
power line insulator having a plurality of rainsheds
projecting from the sides thereof and having a lower end
fitting below the lowermost of said rain sheds, said insulator
terminator device comprising:
(a) volume current conveyance means, connected to a
portion of said insulator between said lowermost rain shed and
said lower end fitting, for conveying a volume current from
said portion of said insulator, through said volume current
conveyance means, and for avoiding high electric field
strengths in said means and on said portion of said insulator;
and
(b) surface current conduction and strength means,
surrounding and connected to a portion of said volume current
conveyance means, and connected to said lower end fitting, for
conveying a surface current through said surface current
conveyance means from said volume current conveyance means to
said lower end fitting, and for avoiding high electric field
strengths in the vicinity of said surface current conduction
and strength means; and for providing mechanical strength for
support of said volume current conveyance means.
The Examiner relies on the following references:
Ette 909,569 Jan. 12,
1909
Hawley 2,023,808 Dec. 10, 1935
Hirayama 3,791,859 Feb. 12, 1974
Tsuzuki et al. (Tsuzuki) 3,798,351 Mar. 19, 1974
2
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