Katherine L. Heinz, CA271698A

Grain Aerator.

On June 21, 1927, Katherine Lorella Heinz of Champaign, Illinois, was awarded a patent for a grain aerator that used the weight of falling grain to drive a system of vibrating screens. This design loosened and aerated the grain without external power, allowing sunlight and air to circulate through it.

Date of Application: 5 November 1926

Date of Issuance: 21 June 1927

For more information, please refer to the following webpage:

• Espacenet