Lock for cylindrical rod
Patent 5605411 Issued on February 25, 1997. Estimated Expiration Date: 
August 14, 2015. 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.
August 14, 2015. 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 808706 1645457 2662712 Locking mechanism for extendible telescoping tubular members Barbell collar Quick release collar Rapid connection between two shafts or the like Barbell weight lock Barbell clamp Quick release weight bar clamp and method for use Patent #: 5295933 InventorsAssigneeApplicationNo. 514598 filed on 08/14/1995US Classes:403/325, Spring biased manipulator403/109.8, Self-locking403/324, Transversely sliding pin482/107Having securing member (e.g., locking collar, etc.) for retaining weight on barExaminersPrimary: Kim, Harry C.Attorney, Agent or FirmForeign Patent References
International ClassF16B 002/18AbstractA lock, which releasably affixes to the end of a cylindrical rod, includes a torus-like case having a central cylindrical passageway that fits over the rod. A spring normally urges a pair of cylindrical pistons located in the case to a locked position where they partially extend into the passageway by a spring. An actuation mechanism allows the pistons to be moved to an unlocked position where they are completely contained within the case by pressing a plunger that extends through the case. The rod contains a plurality of pairs of openings at specified locations along the rod that receive the pistons when the lock is placed on the rod.Field of SearchRetainer extends through aligned recessesMANUALLY RELEASEABLE LATCH TYPE Transversely sliding pin Spring biased manipulator For telescoping members Transverse pin STRUCTURALLY INSTALLED IN DIVERSE ART DEVICE Handheld bar with weight at each end (e.g., barbell, dumbbell, etc.) or component thereof Having securing member (e.g., locking collar, etc.) for retaining weight on bar Bar held by single hand of user (e.g., dumbbell, etc.) | |
