Ted: You will most likely need a programmable relay module like this one that I found on eBay. This particular one uses the eBay number: (cut and paste into eBay search box)
322531852849
Note that it has a programming mode (P7) for being triggered (the foot pedal) that turns the relay off for a fixed time period and back on again. That sounds like what you're looking for. You can find the rest of the explanation on the different modes in the description on eBay. You have to scroll down to find it.