Freeweight locking mechanism
Patent 5123885 Issued on June 23, 1992. Estimated Expiration Date: 
September 10, 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.
September 10, 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 ReferencesWeight lifting apparatus Barbell system Variable add-on weight device Exercise equipment with detachable barbell weight Alignment apparatus for use in freeweight barbell systems Patent #: 4982957 InventorAssigneeApplicationNo. 580093 filed on 09/10/1990US Classes:482/106, Handheld bar with weight at each end (e.g., barbell, dumbbell, etc.) or component thereof482/98, Having guide around or through weight482/107Having securing member (e.g., locking collar, etc.) for retaining weight on barExaminersPrimary: Apley, Richard J.Assistant: Donnelly, Jerome Attorney, Agent or FirmInternational ClassA63B 013/00AbstractAn improved freeweight locking mechanism employs a spring-biased lever having a locking end which blocks movement of the freeweight securing member from a first position whereby a weight is secured to a lifting bar and an operating end, which when contacted by the support frame for the weights, will cause the locking end to move a sufficient distance to allow movement of the weight-securing member to the release position. The member has a rib which defines two surfaces or shoulders to allow the member to be locked in either the weight-securing or weight-releasing positions. The movement of a weight away from the support frame allows spring bias to force the locking end of the lever into the locked position and this blocks accidental movement of the member from its weight-securing position.Field of SearchHAND BARS AND HAND BARROWS | |
