Mechanical interlock for open clamp structures
Patent 4991266 Issued on February 12, 1991. Estimated Expiration Date: 
February 12, 2008. 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.
February 12, 2008. 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 1687854 1851733 2970359 3501814 Hose clamp Longitudinally split sleeve Earless clamp structure Clamp Separable fastener Fastening arrangement for open hose clamp Patent #: 4622720 InventorAssigneeApplicationNo. 942695 filed on 12/17/1986US Classes:24/20R, Metal bands24/20CWCircumferentially swagged band clampExaminersPrimary: Brittain, James R.Attorney, Agent or FirmForeign Patent References
International ClassF16L 033/02AbstractA mechanical interlock for an open clamp structure which includes a clamping band having an outer band portion and an inner band portion, intended to overlap in the closed condition of the clamp structure. The inner band portion is provided in the area near its end at least with an outwardly extending combined guide and support hook whose inclined guide and support surface is formed by its rear edge facing away from the free end of the inner band portion; the rear edge forming the guide and support surface is thereby non-rectilinear, as viewed in the axial direction of the clamp structure, to facilitate assembly of the clamp structure and minimize down-time of the machine for punching out the clamp structure. To further improve its holding ability, the rear edge includes a widened portion at least near the area where the outer band portion comes to lie when the clamp is installed on an object to be fastened. | |
