Who invented the biscuit dough tube?

In 1930, a Louisville, Kentucky, baker named Lively B. Willoughby came up with a way to store premade biscuit dough in a cardboard tube that could be stored in a refrigerator. After a few failed attempts that resulted in packaging explosions and biscuit dough being scraped off the ceiling, Willoughby developed a technique that successfully packaged ready-to-bake, proportioned biscuit dough. It was done by preparing the baking dough, cut into proportioned size, packaged them in aluminum foil, put them in an epsom salt lined cardboard tube, glued lids on both ends, and refrigeration at 40 F degrees. The packaged biscuit dough retained its freshness up to three months. Out of his small bakery, Willoughby marketed his biscuits dough in the packaged tubes as Ye Old Kentuckie Buttermilk Biscuits for about six months

Since Willoughby's invention occurred during the middle of the Great Depression, he needed financial support to further promote his packaged biscuits. Willoughby sold his patent to the Ballard & Ballard Flour Co. of Louisville, Kentucky in 1931 which held the patent until 1948. In 1951, Pillsbury purchased Ballard & Ballard Flour Co. Pillsbury expanded the biscuit product line and continued to use the same Willoughby process. The acquisition of Ballard & Ballard Flour Company and the beginning of packaged biscuit dough in a tube become one of Pillsbury's most important and profitable product lines for the next 50 years until it was purchased by General Mills in 2001.