Seal device for conduit in a fuel dispensing unit

摘要

Embodiments of seal device prevent migration of vapor into compartments that house electronics in a fuel dispensing unit. These embodiments deploy about conduits in a vapor barrier to seal gaps between the conduit and opening in plates of the vapor barrier and/or other components that separate the electronics from fuel-handing components. In one or more embodiments, the sealing device forms a radial seal about the conduit and a planar seal with the vapor barrier, where the sealing device is configured to maintain the planar seal and to allow relative movement of the conduit with respect to the vapor barrier in the opening. This relative movement can occur as a result of connection of the conduit to the fuel-handling components, e.g., a motor that can change position due to operation and/or natural settling of the support structure that supports the motor in the dispensing unit.

主权项

1. A fuel dispensing unit, comprising:
a first plate having a first opening; a conduit extending through the first opening, the conduit having a first position and a second position that is different than the first position in the first opening; a second plate in spaced relation to the first plate forming an air gap, the second plate having a second opening, wherein the conduit extends through the second opening; and a first seal device disposed against and sealed around the conduit and coupling with only the first plate, movement of the conduit causing the first seal device to translate along a surface of the first plate, the first seal device maintaining contact with the surface of the first plate in the first position and the second position of the conduit, wherein a wire extends through the conduit to connect a fuel-handling component to an electronic component.