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US 6,392,322 B1Granted
Rugged explosion-proof actuator with integral electronics
AssigneePrecision Engine Controls Corporation
InventorsE. Joseph Mares, Ronald Zawistowski, Daniel R. Clark
Life of this patent
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Abstract
An explosion-proof actuator assembly includes an explosion-proof housing, a motor, motor control electronics, and an actuator. The housing has at least one inner cavity and at least one exit path comprising an explosion-proof flame path. The motor is disposed within the housing. The motor control electronics communicate with the motor and are disposed within the housing. The actuator is carried by the housing, communicates with the motor, and is configured for movement relative to the housing responsive to actuation of the motor.
Claims32
An actuator assembly, comprising:
- an explosion-proof housing having an inner cavity and at least one exit path comprising an explosion-proof flame path;
- a motor disposed within the housing;
- and
- an actuator carried by the housing, communicating with the motor, and operative to generate movement externally of the housing responsive to actuation of the motor.
1 more element
An actuator assembly, comprising:
- an explosion-proof housing having an inner cavity and at least one exit path comprising an explosion-proof flame path;
- a motor disposed within the housing;
- and
- an actuator carried by the housing, communicating with the motor, and operative to generate movement externally of the housing responsive to actuation of the motor;
- wherein the actuator comprises an actuator rod extending through the housing, and wherein a flame path is provided between the actuator rod and the housing.
2 more elements
An actuator assembly, comprising:
- a housing having an inner cavity and at least one exit path providing an explosion-proof flame path;
- a motor disposed within the housing;
- motor control electronics communicating with the motor and disposed within the housing;
- and
- an actuator carried by the housing and communicating with the motor, the actuator carried for movement relative to the housing responsive to actuation of the motor.
2 more elements
An actuator assembly, comprising;
- a housing having an inner cavity, the housing comprising an actuator/motor housing sub-assembly and an electronics housing sub-assembly;
- a motor disposed within the housing within a first cavity provided within the actuator/motor housing;
- motor control electronics communicating with the motor and disposed within the housing within a second cavity provided within the electronics housing sub-assembly;
- and
- an actuator carried by the housing and communicating with the motor, the actuator carried for movement relative to the housing responsive to actuation of the motor;
- wherein a ferrule extends between the first cavity and the second cavity such that the first cavity and the second cavity are provided in fluid communication via the ferrule.
3 more elements
An actuator assembly, comprising:
- a housing having an inner cavity and at least one exit path providing an explosion-proof flame path;
- a motor disposed within the housing;
- motor control electronics communicating with the motor and disposed within the housing;
- and
- an actuator carried by the housing and communicating with the motor, the actuator carried for movement relative to the housing responsive to actuation of the motor;
- wherein the actuator includes an actuator rod extending through the housing, and wherein an explosion-proof flame path is formed between the actuator rod and the housing.
3 more elements
An actuator assembly, comprising;
- a housing having an inner cavity and at least one exit path providing an explosion-roof flame path;
- a motor disposed within the housing;
- motor control electronics communicating with the motor and disposed within the housing;
- and
- an actuator carried by the housing and communicating with the motor, the actuator carried for movement relative to the housing responsive to actuation of the motor;
- wherein the housing includes a clevis that is removably secured to a motor cover of the housing, and wherein an explosion-proof flame path is formed between the clevis and the motor cover.
3 more elements
An actuator assembly, comprising:
- a housing having an inner cavity and at least one exit path providing an explosion-proof flame path;
- a motor disposed within the housing;
- motor control electronics communicating with the motor and disposed within the housing;
- and
- an actuator carried by the housing and communicating with the motor, the actuator carried for movement relative to the housing responsive to actuation of the motor;
- wherein the housing comprises an electronics tray and a cover, the cover is removably secured to the electronics tray via a plurality of fasteners, and an explosion-proof flame path is provided between the cover and the tray.
3 more elements
An explosion-proof actuator assembly, comprising:
- an explosion-proof housing having at least one inner cavity and at least one exit path comprising an explosion-proof flame path;
- a motor disposed within the housing;
- motor control electronics communicating with the motor and disposed within the housing;
- and
- an actuator carried by the housing, communicating with the motor, and operative to generate movement externally of the housing responsive to actuation of the motor.
2 more elements
Dependencies are inferred from the claim text.