Patent ID: 10900623

Abstract:
Apparatus and methods are disclosed which may keep retractable landscape lamps substantially free from water intrusion in operation for a variety of embodiments. Retractable lamps may have a lower fixed portion which could be buried in the ground and an upper portion which may rise and illuminate. When the upper portion rises it may create a low pressure or vacuum inside. Water may be pulled into the lamp which may lead to failure. The lamp may benefit from a seal between the lower and upper portions. A seal may consist of a flexible rubber material and a grease or other lubricant which may form a watertight seal with low friction. The upper portion may have a cap with provisions for aspiration. While traveling between the retracted and extended positions the lamp may aspirate through the bottom of this cap. The cap may be designed to trap an air reservoir when it retracts. It may then provide air for aspiration the next time the lamp rises to permit such a rise such as above wet conditions or above standing water. The cap may have a protective vent which may allow air to pass while restricting water from passing.