Patent ID: 7272919

Claim:
A portable vacuum device for extracting fluid in a container having an opening, comprising: a handheld housing having a vacuuming head; a fluid extracting nozzle comprising a nozzle body having an enlarged vacuum chamber and a fluid inlet alignedly positioned at said vacuuming head of said handheld housing for communicating said vacuum chamber with an interior pressure of said container; a vacuum device supported in said handheld housing to generate a vacuum effect within said vacuum chamber of said fluid extracting nozzle at said vacuuming head of said handheld housing for extracting said fluid in said container, such that said vacuum pressure within said vacuum chamber is substantially corresponding to said interior pressure of said container; and a sensor switch electrically connected to said vacuum device to sense said vacuum pressure at said fluid extracting nozzle, wherein said fluid extracting nozzle further comprises a flexible sensor tube sealingly extended to said sensor housing to communicate said vacuum chamber with said sealing chamber and a flexible pumping tube sealingly extended to said vacuum device to communicate said vacuum chamber with said vacuum device, wherein said sensor switch is arranged to deactivate said vacuum device from generating said vacuum effect when said sensor switch senses said vacuum pressure within said vacuum chamber drops below a predetermined threshold pressure.