Isaac Merritt Singer (October 27, 1811 – July 23, 1875) was an American inventor, actor, and entrepreneur. He made important improvements in the design of the sewing machine and was the founder of the Singer Sewing Machine Company. Many had patented sewing machines before Singer, but his success was based on the practicality of his machine, the ease with which it could be adapted to home use, and its availability on an installment payment basis.