Patent ID: 8240112
Filing Date: 2012-08-14
Classification: F04B

Abstract:
1. A method of evacuating a storage container having a sidewall enclosing an interior volume and a one-way valve element attached to the sidewall and communicating with the interior volume, the method comprising: i) providing an evacuation device having a housing including a nozzle having a side aperture, a motor with a rotating shaft extending along an axis line and located in the housing, a reciprocal element operatively connected to the rotated shaft and reciprocally movable along the axis line within a chamber, the chamber being in communication with the nozzle, a rotating ring having one or more ring holes; ii) aligning a ring hole with the aperture; iii) placing the nozzle over the valve element; iv) rotating the motor to move the reciprocal element along the axis line within the chamber during an intake stroke; and v) transferring air from the interior volume to the chamber via the one-way valve element.