Abstract: A ball valve has a valve body having proximal and distal portions, a seat assembly that is compressed by the valve body, a flow control ball, and an actuator for actuating the flow control ball between open and closed positions. The seat assembly may include proximal and distal seats, a medial gasket, and O-rings. The flow control ball has a ball body having an outer surface that includes at least one shoulder and a neck, the at least one shoulder having a larger radius than the neck.

Abstract: A valve is disclosed including a body, a bonnet, a flexible diaphragm adapted to be positioned between the bonnet and the body, and an actuator mechanism. The flexible diaphragm has a central portion and a peripheral portion surrounding the central portion, wherein the peripheral portion includes a substantially rigid ring extending continuously through or on the peripheral portion. The body has an input port, a central portion, and an output port. The actuator mechanism is operatively coupled to the diaphragm for moving the diaphragm between an open configuration wherein the input port and output port are in fluid communication with each other, and a closed configuration wherein the diaphragm blocks the central portion and prevents fluid flow between the input port and the output port. The bonnet is adapted to house the actuator mechanism, and the actuator mechanism is positioned in the bonnet.

Abstract: A valve has a body, a bonnet, an actuator mechanism, and a flexible diaphragm adapted to be positioned between the bonnet and the body. The flexible diaphragm has a central portion and a peripheral portion, and the central portion is covered with a thin alloy layer.

Abstract: A ball-massaging board (14) molded out of plastic with a curved surface to comfortably support a person's spine in the supine position. Attached to the surface of board (14) are a number of rubber balls (15/16) that have a bolt head (18) bonded inside them, and a threaded portion (19) protruding outside them. Threaded portion (19) is inserted through a hole (21) in board (14), then secured in place by a lock nut (20). Because hole (21) is larger in diameter than the diameter of threaded portion (19) balls (15/16) are able to freely spin about the surface of board (14). Balls (15/16) are able to spin and roll simultaneously along the surface of board (14) while remaining attached to board (14). As an individual lies on the massaging board (14) and swivels his or her hips a combined spinning and rolling effect is created by balls (15/16) on the user's back and neck, simulating a real life massage.