US 12,345,268 B2
Machine and method for vacuum assisted servicing of a fluid enclosure
Oscar T. Scott, IV, Perryton, TX (US)
Assigned to Red Dog Vac Trac LLC, Austin, TX (US)
Filed by Red Dog International L.P., Perryton, TX (US)
Filed on Dec. 8, 2022, as Appl. No. 18/077,329.
Claims priority of provisional application 63/291,816, filed on Dec. 20, 2021.
Prior Publication US 2023/0193905 A1, Jun. 22, 2023
Int. Cl. F04D 25/02 (2006.01); F04D 13/06 (2006.01); F04D 19/00 (2006.01); F04D 25/12 (2006.01); F04D 29/40 (2006.01); F04F 3/00 (2006.01)
CPC F04D 25/026 (2013.01) [F04D 13/068 (2013.01); F04D 25/12 (2013.01); F04D 29/406 (2013.01); F04D 19/002 (2013.01); F04F 3/00 (2013.01); F05D 2250/231 (2013.01); F05D 2260/60 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A portable battery-powered vacuum pump, comprising:
an elongate housing having proximal and distal ends and a long axis extending between the proximal and distal ends, wherein the housing includes first and second surfaces, an inlet, and an outlet, wherein the first surface forms a sidewall of the housing disposed between the proximal and distal ends, the second surface is at the proximal end and is formed at an angle to the first surface, and the inlet is formed through the second surface, wherein the long axis is orthogonal to the second surface and the second surface forms a maximum extension of the housing along the long axis;
a fan assembly disposed within the housing, the fan assembly including a fan;
a battery disposed within the housing;
a power and control circuit disposed within the housing, wherein the power and control circuit is configured to selectively apply power from the battery to rotate the fan, such that gas is drawn into the inlet and expelled from the outlet; and
a magnet disposed on the second surface in which the inlet is formed, wherein:
the magnet surrounds the inlet;
the magnet is configured to fixedly secure the second surface of the housing in direct contact with a mating face of an enclosure containing the gas such that the inlet is in fluid communication with an interior of the enclosure; and
the magnet exerts magnetic force great enough to support an entire weight of the vacuum pump subject to terrestrial gravitational force.