US Patent: 3,698,725
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| Hydrostatic Seal for Rotary Machine Tool Spindles
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Patentee:
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| Steven E. Klabunde (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 13, 1971 |
| Granted: |
Oct. 17, 1972 |
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Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.
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Description: |
| Abstract:
A hydrostatic seal is provided for machine tool headstocks having rotary, or rotary and translatable, tool spindles. A pressurized air film is formed between opposite sides of a thrust ring and adjacent hydrostatic seal bearings, forming a substantially frictionless seal and preventing oil leakage from around the tool spindle. |
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