Plastic beer keg
AssigneeRehrig Pacific Company
InventorWilliam P. Apps
Life of this patent
Estimating the term…
Abstract
A beer keg assembly includes a liner or bottle having a body portion and a neck portion. A valve assembly is in the neck portion of the liner. The valve assembly includes an inner retainer portion having an inner annular surface formed on a portion of reduced diameter. A cap is secured to the inner retainer portion. At least one spring imparting force between the cap and the inner annular surface. The at least one spring may include an inner spring biasing a piston and a port against one another. The at least one spring may further include an outer spring, wherein the inner spring and the outer spring are both captured between the inner annular surface and the cap. A pressure relief valve may be disposed in a fluid path leading through a wall of the inner retainer portion.
Claims35
A beer keg assembly comprising:
- a liner having a body portion and a neck portion, the neck portion including an outer circumferential surface;
- and
- a valve assembly in the neck portion of the liner, the valve assembly including a retainer capturing an inner spring biasing a port and a piston toward one another, wherein the valve assembly is secured to the outer circumferential surface of the neck portion of the liner such that the inner spring does not impart force on a connection between the valve assembly and the neck portion.
A beer keg assembly comprising:
- a liner having a body portion and a neck portion;
- and
- a valve assembly in the neck portion of the liner, the valve assembly including a retainer having an annular wall sealing against the neck portion, a fluid passage extending through the annular wall, a pressure relief valve in the fluid passage.
A beer keg assembly comprising:
- a liner having a body portion and a neck portion;
- and
- a valve assembly in the neck portion of the liner, the valve assembly including an inner retainer portion having an inner annular surface formed on a portion of reduced diameter, a cap secured to the inner retainer portion, at least one spring imparting force between the cap and the inner annular surface.
A beer keg assembly comprising:
- a liner having a body portion and a neck portion;
- and
- a valve assembly in the neck portion of the liner, the valve assembly including a retainer capturing an inner spring biasing a port and a piston toward one another, wherein the retainer further includes an outer retainer secured to an inner retainer portion and wherein the outer retainer is secured to an outer surface of the neck portion.
A beer keg assembly comprising:
- a liner having a body portion and a neck portion;
- a valve assembly in the neck portion of the liner, the valve assembly including a retainer capturing an inner spring biasing a port and a piston toward one another;
- and
- a pressure relief valve disposed in a fluid path leading through a wall of the retainer.
Dependencies are inferred from the claim text.