Patent ID: 6405534
Filing Date: 2002-06-18
Classification: B60T

Abstract:
An evacuation and fill valve assembly suitable for use in connection with a hydraulic brake system including a master cylinder connection, said assembly comprising:at least one passageway including an opening; and a valve designed to seal the opening of said passageway; wherein during evacuation of air from the system, said valve is in an open position relative to said passageway to permit air to flow past said valve to a master cylinder connection, and further wherein, after evacuation of air from the system and filling of the system with a given volume of brake fluid, said valve is moved to a closed position relative to said passageway, thereby providing a seal between said valve and said passageway provided said given volume of fluid is present in the system, wherein the valve is moved to a closed position relative to said passageway by a force selected from the group consisting of: a pressure differential on opposite surfaces of said valve and the expansion of a portion of said valve initiated by exposure to fluid within the system.