Patent ID: 7380305
Filing Date: 2008-06-03
Classification: B65G

Abstract:
1. A loading dock system for engaging a vehicle at a loading dock, comprising: a dock member for selectively engaging the vehicle at the loading dock; a hydraulic actuator for moving the dock member relative to the vehicle; a reservoir that defines an air passageway that places an interior of the reservoir in fluid communication with an exterior of the reservoir; hydraulic fluid disposed within the reservoir; a pump for conveying the hydraulic fluid between the hydraulic actuator and the reservoir, wherein the hydraulic fluid is acceptably biodegradable and that has material properties that make it suitable for use in loading dock systems; a desiccant disposed in fluid communication with the air passageway, whereby the desiccant is able to absorb moisture from air passing between the interior and the exterior of the reservoir; and a heater in heat transfer relationship with the desiccant, wherein the heater is periodically energized and de-energized.