Hydro-Power Jack

FIG. 1 illustrates a complete assembly of the jack as if it where ready for use.

FIG. 2 illustrates the jack and all its parts as if it where taken apart in logical order.

FIG. 3 is a detail of the end connection tab of the flange clamping ring.

FIG. 4 is a detail of the connection of the tap water supply to the jack body can.

FIG. 5 is a detail of the connection of the piston plate and the hollow shaft. FIG. 5 also shows a detail of head center hole.

The body of the jack is thin walled cylindrical can 1 FIGS. 1 & 2 which has a formed inlet nozzle 16 near the closed bottom and a formed flange 17 around the top opening. The said flange 17 connects the body 1 to the lid plate 6 FIGS. 1 & 2 by an open clamping ring 2 that is in the form of a "C" or bracket when looked upon in section. The mouth of the "C" section is pulled over the periphery of the lid plate and body flange by a clamp nut and bolt 8,7 FIG. 2 which extends thru clamp tabs 9,21 FIGS. 2 & 3 that are attached to the clamping ring 2 with tab connectors 14 (shown as spot welds). The lid plate has a hole in its center 15 which is flared outward to clear shaft connection 20 FIGS. 2 & 5 and allows the hollow shaft 3 to move up and down thru it. The said shaft 3 is connected to the center of piston plate 10 assembled inside of jack body 1 thru connection 20 (shown as a fillet weld- all around). The piston plate sets on an inflatable cloth bag 11 FIGS. 2 & 4 which has an impervious flexible, stretchable, inner bladder 12 FIGS. 2 & 4 like a heavy balloon. The inner bladder has an integral tube inlet 18 which extends out thru the bag outlet 19 FIG. 2 thru the nozzle 16 and thru and back over the spiggot piece 13. The said spiggot piece will be held into the nozzle 16 FIG. 4 by a shrink or force fit. The hose piece 4 FIGS. 2 & 4 will fit over the bladder tube covered spigot 13 FIG. 4 and will be held in place by the spiggot ferrules 21 and hose clamp 5. The hose piece 4 is terminated with a female hose fitting 23 that is compatable with and connectable to any standard garden hose.

Tap water flows into the inner bladder 18 FIG. 2 thru hose piece 4. The said bladder will expand and inflate due to the water pressure and lift the piston plate 10 and hollow shaft 3 which in turn will apply force to any load setting on top of them. The inner bladder 18 is restrained from penetrating the gap between the piston plate 10 FIG. 4 and the jack body 1 by the cloth bag 11 which also protects the bladder.