Exercise lifting bar with self-contained weight mounts
Patent 4787629 Issued on November 29, 1988. Estimated Expiration Date: 
December 21, 2007. 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.
December 21, 2007. 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 3146010 3606406 Lifting bar assembly Dumbbell, adjustable, and locking means Exercise device Quick-bolt locking system Apparatus for securing exercise weights on shafts Patent #: 4738446 InventorApplicationNo. 07/135601 filed on 12/21/1987US Classes:482/107, Having securing member (e.g., locking collar, etc.) for retaining weight on bar403/261Coaxial collar or shoulder or rod is clamp elementExaminersPrimary: Apley, Richard J.Assistant: Bahr, Robert Attorney, Agent or FirmInternational ClassesA63B 21/06 (20060101)A63B 21/072 (20060101) AbstractAn exercise lifting bar. A set of plates are pivotally mounted to each end of the bar. Each plate within a set is independently and pivotally movable relative to the bar. The plates are positioned between an outer collar threaded to the end of the bar and a spring housing rotatably mounted to the bar. The plates are movable to an aligned position allowing weights to be slipped thereover to facilitate removal or addition of weights to the bar. Plates located outward of the weights are then pivoted against the weights securing the weights between the outer plates and the spring housing. The collars are threaded inwardly tightly securing the weights between the outer plates and the spring housing. | |
