Self-adjusting rotary chuck
Patent 4284285 Issued on August 18, 1981. Estimated Expiration Date: 
May 7, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 7, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 310987 1396022 InventorApplicationNo. 06/036501 filed on 05/07/1979US Classes:279/62, Conical sleeve279/140, MEANS TO PREVENT JAW LOOSENING279/150, Nonseparable or built-in279/60Obliquely guided reciprocating jawsExaminersPrimary: Briggs, William R.Attorney, Agent or FirmInternational ClassB23B 31/12 (20060101)AbstractA chuck having self-closing jaws, and a key-threaded rotary ring to engage said jaws in working contact with a tool within their grasp or to disengage said jaws so as to permit their free movement. The jaws themselves are such that the act of performing work with a tool held by said jaws increases the holding pressure exerted by said jaws on said tool. | |
