US 5,311,162 A · Solenoid device

Abstract

A solenoid for a solenoid actuator or solenoid valve is encapsulated within a unitary homogenous plastic body which is molded directly about the solenoid coil and the adjacent portion of the solenoid leads so as to seal the coil and leads against the ambient environment and includes a first body portion enclosing and sealing the coil, and an integral second body portion in the form of an externally threaded stem circumferentially surrounding and sealing the adjacent portion of the leads. The externally threaded stem may be used to couple the solenoid to an electrical cable through which the solenoid is energized or to mount the solenoid on a support, such as a barrier wall between a hostile environment to which the sealed solenoid may be safely exposed, and an environment to which the unencapsulated portions of the solenoid leads may be safely exposed.

Claims15

Dependent claims

A solenoid device comprising:

a solenoid including a coil and a pair of electrical leads connected to said coil and having free ends,
a unitary homogeneous body of solidified plastic material including a first body portion of said plastic material encapsulating and sealed to said coil and a second body portion of said plastic material integral with said first body portion and encapsulating and sealed to said leads between said first body portion and a position spaced from said free ends of the leads, and wherein
said second body portion comprises an externally threaded mounting stem having an outer end, and
said leads extend axially through and beyond said outer end of said stem and have free end portions extending beyond said outer end of the stem for connection to an electrical energy source for energizing said coil.

1 more element

Dependencies are inferred from the claim text.

Solenoid device

Life of this patent

Solenoid device

Life of this patent

Abstract

Claims15