Patent ID: 7134578
Filing Date: 2006-11-14
Classification: B05B

Abstract:
1. A pump able to close off the neck of a bottle comprising a body made from flexible material, the top part of which, after assembly of the pump in the neck, is held at the external edge of the neck, a pumping mechanism enclosed in said body made from flexible material, and a rigid sleeve interposed between said pumping mechanism and said body and provided with a ring embedded in said body characterized in that said ring is able to provide an annular space between the external surface of said sleeve situated above said ring and the opposite internal surface of the body, said annular space being of dimensions such that, after assembly, the radial distances between said external surface of the sleeve and the opposite internal surface of the neck of the bottle are greater than or equal to the thickness of the body made from flexible material, in the non-stressed state.