master66,
For now, make a dwg. and in detail describe how it works. Sign and date this paper. Put it in an envelope, seal it, and address it to yourself. Take this to the post office and have the postal date seal stamped on the envelope seal. Then pay the postage, mail it to yourself. Do not open this envelope, you may need to present this to your patent attorney, if you proceed with a patent.
You now have a postal patent.
