US 5,667,060 AGranted

Diaphragm seal for a high voltage switch environment

AssigneeAmerace Corporation

InventorGlenn J. Luzzi

Life of this patent

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Abstract

A diaphragm for the contact insulating housing of a mechanically operated high voltage switch. The diaphragm has a central portion through which the shaft from the mechanical operating mechanism to the movable contact passes. The walls of the diaphragm about the central portion are mechanically joined or chemically bonded to the shaft. The diaphragm is made of such materials, is dimensioned and configured so that the diaphragm moves with the shaft and prevents relative motion therebetween. The outer rim of the diaphragm is mechanically joined or chemically bonded to the switch housing. The quality of the diaphragm and the seals permits them to withstand the application of the full operating voltage of the switch.

Claims46

Dependent claims

A mechanically operated high voltage electrical switch comprising:

a) a switch body having a first end and a second end and a central bore therethrough;
b) a first contact member adjacent said body first end for connecting a first high voltage electrical cable thereto;
c) a second contact member intermediate said body first and second ends for connecting a second high voltage electrical cable thereto;
d) a fixed first electrical contact in said central bore adjacent said body first end and coupled to said first contact member;
e) a moveable second electrical contact in said central bore intermediate said first and second ends and coupled to said second contact member, in linear alignment with said fixed first electrical contact, said first and said second contact members and said moveable second electrical contact capable of being moved between a first position engaging said fixed first electrical contact and a second position separated from said fixed first electrical contact;
f) an operating shaft having a first end and a second end, said shaft first end extending through said body second end and a portion of said central bore and coupled to said moveable second electrical contact for moving said movable second contact between said first and second positions;
g) sealing means composed of a material able to withstand the high voltages impressed on said fixed first electrical contact and said movable second electrical contact coupled to said operating shaft and at said sealing means outer periphery to the wall of said body defining said central bore to seal said second end of said body and prevent an arc between said first fixed electrical contact or said movable second electrical contact and said operating shaft second end;
and
h) mechanical means coupled to said second end of said operating shaft to selectively and directly position said movable second electrical contact with respect to said fixed first electrical contact.

6 more elements

Dependencies are inferred from the claim text.

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Abstract

A mechanically operated high voltage electrical switch comprising:

a) a switch body having a first end and a second end and a central bore therethrough;
b) a first contact member adjacent said body first end for connecting a first high voltage electrical cable thereto;
c) a second contact member intermediate said body first and second ends for connecting a second high voltage electrical cable thereto;
d) a fixed first electrical contact in said central bore adjacent said body first end and coupled to said first contact member;
e) a moveable second electrical contact in said central bore intermediate said first and second ends and coupled to said second contact member, in linear alignment with said fixed first electrical contact, said first and said second contact members and said moveable second electrical contact capable of being moved between a first position engaging said fixed first electrical contact and a second position separated from said fixed first electrical contact;
f) an operating shaft having a first end and a second end, said shaft first end extending through said body second end and a portion of said central bore and coupled to said moveable second electrical contact for moving said movable second contact between said first and second positions;
g) sealing means composed of a material able to withstand the high voltages impressed on said fixed first electrical contact and said movable second electrical contact coupled to said operating shaft and at said sealing means outer periphery to the wall of said body defining said central bore to seal said second end of said body and prevent an arc between said first fixed electrical contact or said movable second electrical contact and said operating shaft second end;
and
h) mechanical means coupled to said second end of said operating shaft to selectively and directly position said movable second electrical contact with respect to said fixed first electrical contact.

6 more elements