The Tower Garden, with patent number 7,055,282 describes a vertical aeroponic garden device. Many people have made similar devices over the years and there have been patents for some of them.

I have created a vertical garden that reuses plastic drinking bottles. The garden has similarities in the way it functions, i.e., it has a pump to deliver water from a reservoir to the top and the water drips down over the plant roots.

It seems to me that all the vertical gardens have these elements, so what must I avoid to not be violating a patent?

Thanks, Dan