US Patent: 1,175,496
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| Lubricating-bolt
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Patentee:
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| Oscar Zerk (exact or similar names) - Cleveland, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 27, 1913 |
| Granted: |
Mar. 14, 1916 |
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Jeff Joslin
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Description: |
| This is a predecessor to the famous Zerk fitting for injecting grease into a grease cup. Oscar Zerkowitz came to the United States in 1907 on the Lusitania, changed his name, and started inventing. In 1922 he invented a grease fitting that now bears his name. He lived until age 90 and reportedly was granted over 300 patents. We have only found 159 U. S. patents granted to him; perhaps the others were foreign patents. At the time of Zerk's death in 1968, about 20 billion zerk fittings had been made, and he was a very wealthy man. |
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