Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1995-01-05
1997-09-02
Swarthout, Brent A.
Communications: electrical
Condition responsive indicating system
Specific condition
340635, 340643, 34081563, 361 72, 361115, 335 17, 335 28, G08B 2100
Patent
active
056637128
ABSTRACT:
An electrical contact position indicator assembly is operatively coupled to an electrical device, such as a recloser, for indicating the relative position of the contacts of the electrical device, i.e., opened or closed, at any given time during operation of the electrical device. The position indicator assembly includes a movable indicator having first indicia to indicate that the contacts are opened, and second indicia to indicate that the contacts are closed. Each of the first and second indicia of the indicator lies in more than one plane. Preferably, each of the first and second indicia of the indicator lies on a three-dimensional, curvilinear or spherical surface. In the preferred embodiment, the indicator includes a mechanical linkage to the contact opening and closing assembly.
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Mc Graw--Edison Bulletin--"Reclosers Types VSA and VSML; Three-Phase; Electronically Controlled--" Nov. 1978 p. 1.
Mc Graw--Edison Bulletin--"Reclosers Type VSO; Three-Phase; Electronically Controlled"-- Sep. 1980 pp. 7 and 15.
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Mc Graw--Edison Bulletin--"Reclosers Types RV, RX, VW, VWV, W, WV; Three-Phase", 1981 p. 7.
ESR--"Simplified Construction"--Prior to May 18, 1994, p. 2.
Joslyn JVR Vacuum Recloser--May 1994, pp. 1 and 3.
S & C Scada Mate Switching System, prior to Jan. 5, 1994, p. 4.
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'Hubbell Incorporated
Presson Jerry M.
Swarthout Brent A.
Tarnoff David L.
Trieu Vam T.
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