Patent ID: 6792982
Filing Date: 2004-09-21
Classification: F04B

Abstract:
A vacuum device for extraction of a substance, comprising:an upper member having a bottom surface, the bottom surface defining a bottom opening; a vacuum pump therein the upper member, the vacuum pump in fluid communication with the bottom opening; an energy source selectively coupled to the vacuum pump; a lower member selectively coupled to the upper member, the lower member having a first surface, an opposing second surface, and defining an inner cavity having an inner surface, wherein the first surface defines a first opening and the second surface defines a second opening, the second opening of the lower member in selective fluid communication with the fluid source, and wherein the inner cavity is in fluid communication with the first opening and the second opening; and an elastic membrane disposed therein the inner cavity and coupled to the first opening of the lower member, the membrane having an interior surface and an exterior surface, the membrane forming a generally pouch shape defining an interior cavity that is in communication with the first opening of the lower member, wherein at least a portion of the exterior surface of the membrane is in contact with a portion of the inner surface of the inner cavity of the lower member, and wherein, in use, the lower member is selectively coupled to the upper member such that the energy source is electrically coupled to the vacuum pump and the bottom opening of the upper member is in sealed contact with the first opening of the lower member so that the vacuum pump is in fluid communication with the interior cavity of the elastic membrane.