US Patent: 4,434,986 
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| Shaft Seal
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	        Patentee:
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 | Dale J. Warner (exact or similar names) - Palos Heights, Cook County, IL |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Oct. 12, 1982 | 
 
| Granted: | 
Mar. 06, 1984 | 
 
 
 
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                        Joel Havens "Vintage Machinery" entry for Gits Bros. Mfg. Co. 
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        Description: |  
| Abstract:
A shaft seal has a pair of stationary, yet floating, seals which are biased into engagement with opposite sides of a mating ring carried on a rotating drive sleeve. The mating ring is maintained perpendicular to the axis of rotation and against a squaring surface of the drive sleeve. The location of a secondary seal pressure balances internal machine pressure at the primary seal at a ratio of 80:20, and provides a reverse pressure balance of greater than 100%. |  
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