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Here are several packing extractors incorporating a flexible shaft. The one on the top is

marked

―

Mound St. Louis

.‖

The one on the bottom is the

―

Dura-Hook

‖

based on

Christopher Wiessner 1937 patent. This patent is discussed in the patents section of this

article. The Dura Hook is sold by Flowserve headquartered in Irving, Texas.

Mound Tool Company was founded in St. Louis in 1899. The company currently

produces tools for meat packers and processors.

Twisted wire packing extractor