Abstract: A headrest assembly for a user to recline thereon. The headrest assembly comprises an upper portion for supporting the user's head and a lower portion for supporting the user's upper back. There is a rigid base that supports the upper and lower portions. At the upper portion, there are one or more upper cushions coupled to the rigid base. The upper cushion(s) are configured to support a user's head. At the lower portion, one or more elongated back support(s) are coupled to the rigid base. Also disclosed are methods for using a headrest assembly.

Abstract: A headrest assembly for a user to recline thereon. The headrest assembly comprises an upper portion for supporting the user's head and a lower portion for supporting the user's upper back. There is a rigid base that supports the upper and lower portions. At the upper portion, there are one or more upper cushions coupled to the rigid base. The upper cushion(s) are configured to support a user's head. At the lower portion, one or more elongated back support(s) are coupled to the rigid base. Also disclosed are methods for using a headrest assembly.

Abstract: A headrest assembly for a user to recline thereon. The headrest assembly comprises an upper portion for supporting the user's head and a lower portion for supporting the user's upper back. There is a rigid base that supports the upper and lower portions. At the upper portion, there are one or more upper cushions coupled to the rigid base. The upper cushion(s) are configured to support a user's head. At the lower portion, one or more elongated back support(s) are coupled to the rigid base. Also disclosed are methods for using a headrest assembly.

Abstract: A headrest assembly for a user to recline thereon. The headrest assembly comprises an upper portion for supporting the user's head and a lower portion for supporting the user's upper back. There is a rigid base that supports the upper and lower portions. At the upper portion, there are one or more upper cushions coupled to the rigid base. The upper cushion(s) are configured to support a user's head. At the lower portion, one or more elongated back support(s) are coupled to the rigid base. Also disclosed are methods for using a headrest assembly.

Abstract: A refillable container includes a filling valve, and a pressurization station having housing at which a needle is coupled to a compressor. The needle includes an enlarged frustoconical head, a reduced diameter neck, and a larger diameter base. The filling valve has an upper split portion, a frustoconical section expanding downward and terminating in a barb, and a lower flared flange, and defines an interior space having a first portion sized to accommodate the head of the needle, a reduced diameter neck portion, and a flared third portion providing an entrance for the needle. Upon compressor actuation, air is forced into the valve and causes the bills of the valve to flutter open to pressurize the container. As pressure within the container increases, force against the valve from within the container increases, locking the container on the needle. The container may be guided onto the needle with minimal effort.

Abstract: A refillable container includes a filling valve, and a pressurization station having housing at which a needle is coupled to a compressor. The needle includes an enlarged frustoconical head, a reduced diameter neck, and a larger diameter base. The filling valve has an upper split portion, a frustoconical section expanding downward and terminating in a barb, and a lower flared flange, and defines an interior space having a first portion sized to accommodate the head of the needle, a reduced diameter neck portion, and a flared third portion providing an entrance for the needle. Upon compressor actuation, air is forced into the valve and causes the bills of the valve to flutter open to pressurize the container. As pressure within the container increases, force against the valve from within the container increases, locking the container on the needle. The container may be guided onto the needle with minimal effort.