Chuck jaw
Patent 5011167 Issued on April 30, 1991. Estimated Expiration Date: 
March 12, 2010. 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.
March 12, 2010. 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 725273 2615721 3927892 InventorAssigneeApplicationNo. 491729 filed on 03/12/1990US Classes:279/62, Conical sleeve279/123JawsExaminersPrimary: Schwartz, Larry I.Assistant: Schultz Attorney, Agent or FirmForeign Patent References
International ClassB23B 031/12AbstractThe profiles of the threads on the jaws of a chuck, such as a three-jawed chuck, are modified so that at least one end of the jaw thread segments curve in away from the threads on the nut which operate the jaws. This prevents the end edges of the jaw thread segments from digging into the nut threads when the nut is rotated to operate the jaws. | |
