Watertight seal for plug-in type pothead

Details Watertight seal for plug-in type pothead Watertight seal for plug-in type pothead

1991-02-11

1992-05-12

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

174 75D, 310 71, H02K 5132, H01R 13426, F04D 1308

Patent

active

051131013

ABSTRACT:
A plug-in type pothead includes specially designed seal sleeves formed from a heat shrinkable polymer. One end of the sleeve has an annular collar about it which, when snugly fitted within the motor lead entry hole of the terminal block, forms a watertight seal between the terminal block and the sleeve. The other end of each of the sleeves is heat shrunk about its respective motor lead to form a watertight seal between the sleeve and the lead. In addition, a gasket between the connecting face of the terminal block and the connecting face of the pothead provides a watertight seal between the pothead and the terminal block. The result is a completely watertight connecting system, extending from the pothead through the terminal block to the motor leads.

REFERENCES:
patent: 2049749 (1936-08-01), Roth
patent: 2050294 (1936-08-01), Edmonds
patent: 4050765 (1977-09-01), Duesterhoeft et al.
patent: 4123133 (1978-10-01), Pickett et al.
patent: 4456844 (1984-06-01), Yamamoto et al.
patent: 4626721 (1986-12-01), Ouchi

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