US Patent: 4,802,389 
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| Adjustable Workpiece Gripping and Rotating Device
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	        Patentee:
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 | William E. Shultz (exact or similar names) - Lombard, IL |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Dec. 31, 1984 | 
 
| Granted: | 
Feb. 07, 1989 | 
 
 
 
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                        Joel Havens 
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        Description: |  
| Mason, Kolehmainen, Rathburn & Wyss - patent attorneys
Abstract
Disclosed is a new and improved device for gripping and rotating a workpiece. The device includes an adjustable jaw, adjustable through a rack and pinion gear assembly so that torque applied to the gear member, for example by connecting the gear to a cooperatively fitting ratchet wrench drive handle, causes simultaneous jaw tightening and rotation of the device to achieve rotation of the workpiece without jaw slippage. 
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