Invertible aerosol valve

An invertible aerosol valve comprising:

• a. a cup-shaped valve body having a circular side wall and a floor with an opening therethrough, the side wall of the body extending downward below the floor to define a downwardly facing circular socket,
• b. an annular resilient gasket sealingly secured across the top of the valve body,
• c. a valve element defined by a tubular upward stem sealingly surrounded by the gasket, and an enlarged head normally seating against the underside of the gasket, the stem having outward passage means through the tubular stem adjacent the head, the gasket normally sealing the passage means,
• d. spring means in the valve body urging the valve element upward toward seating,
• e. a bypass appendage having a cylindrical side wall frictionally and sealingly engaging in the socket and vertically partitioned inside into:
• 1. a ball chamber provided at its lower end with a bypass valve seat having a central seat opening, the ball chamber having an upper end closed off by the floor and a lateral opening therein above the seat to outside the appendage and,
• 2. a substantially vertical product passage to the
• side of the ball chamber, the lower end communicating with the bypass valve seat opening from therebelow, the upper end communicating with the opening in the floor in the valve body,
• f. a dip tube connected to the appendage and communicating with the lower end of the product passage, and
• g. a gravity-responsive ball in the ball chamber normally seating on the seat and valving it off but falling away from the seat when the aerosol valve inverted to permit passage of product through the lateral opening, through the seat opening, through the vertical product passage into the valve body and out the tubular stem when the aerosol valve stem depressed to unseal the passage means.