Abstract: A pump for delivering product from a product package to a nozzle. The pump may include a housing with a first port, a second port, and an interior. The first port mates with the product package and the second port mates with the nozzle. A first check valve may be positioned within the first port. A piston rod may be positioned within the interior of the housing for movement therein. The piston rod may include a first piston and a second piston. The first piston may include a second check valve positioned therein such that the product is forced past the first check valve on a down stroke of the piston rod and forced past the second check valve on an up stroke of the piston rod.

Abstract: The present invention discloses various one piece, flip style, injection molded, pour spout type closures. Each closure includes a frame having an aperture therethrough with a door hinged along a bottom edge of the aperture for opening and closing the aperture. Side panels are attached to the door and extend between the door and the side edges of the panel to form the pour spout when the door is in the opened position. Two embodiments of the present invention provide hinged side panels which fold up to help seal the closure and provide a substantially flat panel with the door in the closed position. Another embodiment of the present invention provides fixed side panels adapted to extend through the aperture and including stop members to limit the outward movement of the door to the fully opened position.