Abstract: A portable furniture and appliance mover includes a frame which has a handle on the rearward portion and a lateral load-engaging member on the forward portion. A forward projecting member engages the load longitudinally and permits application of a moment on the load about a lateral axis that is both perpendicular to the direction of motion and parallel to the incline on which the load is moved. An operable winch is mounted on a medial lateral member of the frame. The winch cable is played off of the winch and is trained around a pulley which is removably secured below the center of gravity of the load. The free end of the cable is then removably attached to a fixed point at or beyond the top of the incline.

Abstract: A method of determining the rate of air leakage from or into a containment is described. The internal pressure of the containment is maintained at a positive or negative value with reference to ambient air pressure and the air mass changes are continuously monitored through measurements of pressure, temperature, relative humidity and free volume. Air leakage is measured through a mass balance equation and a regression analysis carried out to yield constants which characterize the various features of the leakage flow and give an indication of the accuracy of the results.