US Patent: 2,881,015
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| Shaft Seal Means and Method
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Patentee:
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| Edward C. Wahl (exact or similar names) - Arlington Heights, Cook County, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 15, 1956 |
| Granted: |
Apr. 07, 1959 |
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Joel Havens
"Vintage Machinery" entry for Gits Bros. Mfg. Co.
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Description: |
| Claim:
The method of developing a smooth wear resistant seal face having a low coefficients of friction on an elastomeric seal ring of a seal of the relatively rotating face to face engaging type which comprises providing an elastomeric seal ring with a soft deformable nose portion and a flexible diaphragm portion, insulating the nose portion from the diaphragm portion, spring loading the soft deformable nose portion of the elastomeric seal ring against a hard surface, relatively rotating the nose and surface, loading the nose sufficiently against the hard surface to conform the nose to said surface in good sealing relation therewith, continuing said loading and said relative rotation of the nose and hard surface to develop an elevated glaze hardening temperature for the nose, confining the glaze hardening temperature to the nose, glaze hardening the surface of said nose and thereby reducing the coefficient of friction between the nose and said surface for providing a cool running wear resisting seal, and retaining the flexibility of the diaphragm portion. |
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