Patented Product: U.S. Patent No. 7,318,793, Push up/pull up exercise apparatus and methods for use. The entire patent can be viewed in its entirety by copying and pasting in your internet address box: http://patft.uspto.gov/netahtml/PTO/srchnum.htm and pasting the patent number in the box on the resulting page.
Claims:
1. An exercise device comprising: a geometric element with a relatively flat bottom; a top comprising a compressible covering; a spring element between the top and the bottom of the device, the spring element comprising an inflatable bag; the device being sized for use as a push up exercise device; whereby the distance from the top to the bottom of the device varies with the amount of force placed on the device during an exercise.
2. The device according to claim 1 wherein the exercise is a pull-up.
3. The device according to claim 1 wherein the exercise is a dip.
4. An exercise device comprising: a geometric element with a relatively flat bottom; a top comprising a compressible covering; a spring element between the top and the bottom of the device; whereby the distance from the top to the bottom of the device varies with the amount of force placed on the device during an exercise; and elastic means for decreasing the force required to be exerted by a user during an exercise by adding an elastic element to the to the spring element.
5. The device according to claim 4 wherein the device comprises user-assemblable components.
6. The device according to claim 1 wherein the compressible covering is contoured to fit to the shape of the human chest.
7. An exercise device comprising: a geometric element with a relatively flat bottom; a top; a coil spring between the top and the bottom of the device, the coil spring comprising coils; spacers, the compression force between the coils being adjustable by adding spacers between the coils; whereby the distance from the top to the bottom of the device varies with the amount of force placed on the device.
8. An exercise device comprising: a geometric element with a relatively flat bottom; a top; a loop spring between the top and the bottom of the device; an elastic band, the compression force between the top and the bottom of the loop spring being adjustable by adding at least one said elastomeric band around the loop spring; whereby the distance from the top to the bottom of the device varies with the amount of force placed on the device.
