Patent ID: 6520461
Filing Date: 2003-02-18
Classification: A47B

Abstract:
A leg support comprisinga plastic housing disposed on a vertical axis and having an internal buttress thread and an upper support surface for receiving a load, said internal buttress thread having a lower load resisting flank disposed on an upwardly directed angle of from 1Â° to 7Â° relative to a horizontal plane for transferring the load therethrough and an upper flank disposed on a downwardly directed angle relative to said vertical axis and a plastic foot having an external buttress thread threadably mounted in said internal thread of said housing and extending from one end of said housing, said external buttress thread having an upper load-resisting flank disposed in mating engagement with said lower flank of said internal thread to receive the load therefrom and a lower flank disposed on a downwardly directed angle relative to said vertical axis of said housing.