Abstract: A foldable top cover for an agricultural mower that includes first and second generally planar cover portions connected by an intermediately positioned hinge that reduces the required overhead clearance necessary for opening the top cover. The hinge connection axis is offset in a first direction from the from plane of the cover portions and further includes hinge stops on the first and section portions that limit the hinge motion so that the first and second portions are maintained in a generally co-planar arrangement when in an operating position but may be folded in a direction opposite to the offset direction of the hinge connection thereby allowing the top cover to be compactly repositioned for service access to the mower.

Abstract: A foldable top cover for an agricultural mower that includes first and second generally planar cover portions connected by an intermediately positioned hinge that reduces the required overhead clearance necessary for opening the top cover. The hinge connection axis is offset in a first direction from the from plane of the cover portions and further includes hinge stops on the first and section portions that limit the hinge motion so that the first and second portions are maintained in a generally co-planar arrangement when in an operating position but may be folded in a direction opposite to the offset direction of the hinge connection thereby allowing the top cover to be compactly repositioned for service access to the mower.

Abstract: In a vacuum unit for use in drawing a vacuum on a steam sterilizer, a pump circulates water through an ejector and a reservoir. Fresh water is injected at the pump inlet to maintain a low temperature in the ejector so that it can operate efficiently. Excess water is taken from a location adjacent the bottom of the reservoir through an internal dip tube, and passed through a U-shaped conduit that serves as a condensate trap. To maintain the water discharge temperature below a predetermined level, fresh water is injected into the U-shaped conduit through a valve controlled by a temperature sensor downstream from the water injection point.

Abstract: In a vacuum unit for use in drawing a vacuum on a steam sterilizer, a pump circulates water through an ejector and a reservoir. Fresh water is injected at the pump inlet to maintain a low temperature in the ejector so that it can operate efficiently. Excess water is taken from a location adjacent the bottom of the reservoir through an internal dip tube, and passed through a U-shaped conduit that serves as a condensate trap. To maintain the water discharge temperature below a predetermined level, fresh water is injected into the U-shaped conduit through a valve controlled by a temperature sensor downstream from the water injection point.