Patent ID: 7249754
Filing Date: 2007-07-31
Classification: B60S,B66F

Abstract:
1. A jack for securement to the underside of a recreational vehicle, the jack having an extended position and a retracted position, the jack comprising: an elongated channel, the channel having an upper central portion, downward extending bends extending from opposite sides of the upper central portion, a top trunnion flange extending outward from each downward extending bend, a side extending downward from each top trunnion flange, and a bottom trunnion flange extending inward from each side; a T-bracket attached to one end of the channel, the T-bracket comprising a folded unwelded sheet of metal; an elongated screw rotatably mounted to the T-bracket; a movable trunnion threadedly attached to the screw and slidably carried by the channel, the trunnion fitting between the channel top trunnion flanges and the channel bottom trunnion flanges, there being a clearance space between the trunnion and the channel upper central portion; an elongated support leg pivotally attached to the trunnion, the support leg having: struts pivotally attached to the channel and T-bracket and to the support leg, sides of the T-bracket fitting between the struts and the channel, the T-bracket being attached to the channel only by fasteners attaching the struts to the T-bracket and the channel; a U-shaped insert positioned within the support leg proximate the attachment of the struts to the support leg; a foot having a tab extending therefrom, the tab fitting into the support leg slot and being permanently attached to the support leg; and a plurality of welds, the welds being only between the foot tab and the support leg, and between sides of the insert and sides of the support leg, the support leg and the channel each having a thickness no greater than 10 gauge.