Explosion-proof enclosures including light transmissive portions
AssigneeEaton Intelligent Power Limited
InventorsJesse Wade Taylor, Joseph Michael Manahan, Andrew Francis Scarlata
Life of this patent
Estimating the term…
Abstract
Aspects and techniques of the present disclosure relate to a structure for housing an electrical component. The structure can include an explosion-proof enclosure that is rated for use in a hazardous location. The explosion-proof enclosure can include at least one flame path and at least a portion that has a plastic construction that is light transmissive for inspection purposes.
Claims19
A structure for housing an electrical component, the structure comprising:
- an explosion-proof enclosure rated for use in a hazardous location, the explosion-proof enclosure including at least one flame path, the explosion-proof enclosure also including at least a portion having a plastic construction that is light transmissive;
- wherein the portion of the explosion-proof enclosure including the plastic construction that is light transmissive is provided as at least part of a sealing fitting having first and second pipe hubs and a sealant injection port.
A method of evaluating a conduit system, including an explosion-proof enclosure therein, for visually observing structural integrity of sealant within a sealing fitting, the sealing fitting including a main body that defines at least a first port that extends therethrough into an interior of the sealing fitting, at least a first plug removably configured to be inserted into the at least first port:
- the method including a step of viewing through a transparent portion of the sealing fitting to inspect the interior of the sealing fitting.
A cable gland rated for use in hazardous environments, the cable gland comprising:
- a main body defining an internal bore for receiving a cable;
- a plug fitted inside a portion of the internal bore of the main body, the plug including a compound chamber, the compound chamber being configured to receive a volume of sealant;
- a first transparent window positioned in the main body;
- and
- a second transparent window positioned in the plug;
- wherein the first and second transparent windows are aligned for allowing visual inspection inside the compound chamber of the cable gland.
A structure for housing an electrical component, the structure comprising:
- an explosion-proof enclosure rated for use in a hazardous location, the explosion-proof enclosure including at least one flame path, the explosion-proof enclosure also including at least a portion having a plastic construction that is light transmissive;
- wherein the portion of the explosion-proof enclosure including the plastic construction that is light transmissive is provided as at least part of a lighting guard defining an interior enclosure volume in which a light emitter is housed, the lighting guard having a one-piece, unitary construction with a closed end positioned opposite from an open end, the lighting guard including internal threads adjacent the open end that provide the explosion-proof enclosure with the at least one flame path.
Dependencies are inferred from the claim text.