Concrete extraction system

#I. Field of the Invention

#The present invention relates generally to the field of concrete, and more particularly to a system and method for extracting concrete.

#II. Description of the Related Art.

#FIG. 1 illustrates a view of an embodiment of a concrete extraction apparatus;

#FIG. 2 illustrates an embodiment of a vacuum cup frame and a block of material;

#FIG. 3 illustrates a side view of an embodiment of a concrete extraction apparatus in a lowered position;

#Referring to the drawings wherein like reference numerals designate corresponding parts throughout the several figures, reference is made first to FIG. 1 that illustrates a view of an embodiment of a concrete extraction apparatus 100. The apparatus 100 includes a frame 105 having a handling bar 106. The frame 105 includes a first upper bar 107 and a first lower bar 146, a second upper bar 130 and a second lower bar 133. Several cross bars 108 are connected between the first upper and lower bars 107, 146 and between the second upper and lower bars 130, 133. Wheels 110 are connected to the frame 105 substantially perpendicular to a wheel pivot bar 115. The wheel pivot bar 115 is connected to the frame 105. A support frame 120 is connected to the frame 105 and the wheel pivot bar 115. The frame 120 includes a center bar 121 and two inclined bars 122. The center bar is connected to the wheel pivot bar at its lower end and to the intersection of the bars 107, 130. The inclined bars 122 are connected to the center bar 121 and to the wheel pivot bar 115. A vacuum cup frame 125 is connected to an upper bar 130 of the frame 105 at a pivot point 131. The bar 130 is shown as an L-shape. In another embodiment, the upper bar 130 can be straight with the pivot point 131 on the end. It is understood that different orientations of the bars of the frame 105 is possible without departing from the spirit of the invention.

#Two vacuum cups 135 are connected to the vacuum cup frame 125 by attachment plates 140. The vacuum cups 135 typically include a flexible and resilient material such as a durable rubber. The vacuum cup frame 125 and the attachment of the vacuum cups 135 are described further below with respect to FIG. 2.

#The apparatus 100 further includes a vacuum pump 145 connected to the frame 105. The vacuum pump is illustrates as attached to a lower bar 146 of the frame 105. The vacuum pump can typically be connected at any desired location on the apparatus 100. Hoses 150 are connected to both the vacuum cups 135 and to the vacuum pump 145 so that the vacuum cups 135 are coupled to the vacuum pump 145, so that any vacuum pulled by the vacuum pump 145 is also pulled in the vacuum cups 145. The vacuum pump 145 can be powered by many methods including, but not limited to battery, external electricity combustion engine and solar power. A power switch 155 is connected to the frame 105 and is electrically coupled to the vacuum pump 145.