Geometrical instruments
Patent
1975-05-19
1976-12-14
McGlynn, Joseph H.
Geometrical instruments
339268R, H01R 1352
Patent
active
039972321
ABSTRACT:
A plurality of separate electrical power supply lead wires each have an exposed end portion projecting from a surrounding insulation. The end portions are slidably received within corresponding collett-like socket members supported by an insulator plug disposed within a bore formed within a submersible electrical motor housing. A strain relief washer engages the socket members and supports a resilient gland member which has corresponding bores for slidably receiving the insulation on the lead wires. A bushing and tubular nut surround the lead wires and project into the upper end of the bore to provide for compressing the gland member axially within the bore for producing a fluid-tight seal between the insulation on each lead wire and the housing and to press the strain relief washer against the socket members for gripping the lead wires. The socket members project through corresponding holes within a lightning arrestor electrode which defines an annular gap surrounding each socket member, and a corresponding plurality of threaded coupling elements connect the stator lead wires to the socket members and form part of a sub-assembly. The coupling elements are also sealed to the motor housing by compressing a resilient gland member axially within the lower end portion of the bore with another insulator bushing and tubular nut which surround the stator lead wires.
REFERENCES:
patent: 2142176 (1939-01-01), Cameron
patent: 2605315 (1952-07-01), Hargett
patent: 2700140 (1955-01-01), Phillips
patent: 2742622 (1956-04-01), Stevens, Jr.
patent: 2933712 (1960-04-01), Klopfenstein
patent: 3092431 (1963-06-01), Bilbrey
patent: 3266009 (1966-08-01), Jensen et al.
patent: 3384860 (1968-05-01), Schaefer et al.
patent: 3406371 (1968-10-01), Buckeridge
patent: 3501737 (1970-03-01), Harris et al.
patent: 3550065 (1970-12-01), Phillips
Century Electric Motor Co.
McGlynn Joseph H.
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