Pierce's design was later improved by U.S. appliance engineers Ivar Jepson, Ludvik Koci, and Eric Bylund of Sunbeam in the late 1930s. They altered the heating chamber and eliminated the recessed well which was hard to clean. They also made several improvements to the filtering mechanism. Their improved design of plated metals, styled by industrial designer Alfonso Iannelli, became the famous Sunbeam Coffeemaster line of automated vacuum coffee makers (Models C-20, C-30, C40, and C-50). The Coffeemaster vacuum brewer was sold in large numbers in the United States during the years immediately following World War I.
Treat yourself to a new coffee maker from our selection at Williams Sonoma and get those mornings off to a brighter start. Choose from ultra machines for the office to low-tech coffee makers for camp and off-grid activities. Coffee machines are available with and without a coffee mill so you can choose to have the convenience of grinding your beans right where you brew your favorite beverages. Deluxe coffee centers allow you to make coffee, espresso, cappuccino and other coffee-based beverages including latte, pepresso, and Irish coffee. Several versions of coffee-espresso makers include milk foaming technology for creamy toppings on your mochas and macchiatos. Deluxe coffee makers and machines are superb additions to galleries, offices, club meeting spaces and anywhere you need to make a lot of coffee fast.