Portable vacuum device

Details Portable vacuum device Portable vacuum device

2007-09-25

2007-09-25

Rada, Rinaldi L. (Department: 3721)

Package making

With contents treating

Vacuum or inert atmosphere

C053S084000, C053S088000

Reexamination Certificate

active

11481667

ABSTRACT:
A portable vacuum device for extracting fluid in a container having an opening includes a handheld housing, a fluid extracting nozzle, a vacuum device and a sensor switch. The fluid extracting nozzle has a vacuum pressure corresponding to an interior pressure of the container, extended towards the handheld housing for communicating with the opening of the container. The vacuum device is supported in the handheld housing to generate a vacuum effect within the fluid extracting nozzle. The sensor switch includes a movable conductive member driven with respect to the vacuum pressure of the fluid extracting nozzle and a control member normally positioned spaced apart from the movable conductive member to allow the vacuum device to be operated, wherein when the vacuum pressure drops below a predetermined threshold pressure, the movable conductive member is driven to electrically contact with the control member to deactivate the vacuum device.

REFERENCES:
patent: 2899516 (1959-08-01), Smith
patent: 5195427 (1993-03-01), Germano
patent: 5765608 (1998-06-01), Kristen
patent: 6410870 (2002-06-01), Nishizaki et al.
patent: 6799506 (2004-10-01), Tarlow
patent: 2003/0110741 (2003-06-01), Wang

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