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US Patent 4545598 - Safety ski binding
US Patent Issued on October 8, 1985
Estimated Patent Expiration Date:
October 8, 2002Estimated 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.
Estimated Patent Expiration Date:
October 8, 2002Estimated 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.AbstractA safety ski binding includes a releasable jaw having a pivotally supported holding mechanism which is adapted to engage a ski shoe. The jaw includes first and second cylinders with fluid actuated pistons therein, and a fluid channel interconnects the cylinders. A check valve in the fluid channel resists fluid flow from the first cylinder to the second, and a solenoid controlled valve in the fluid channel, when open, creates a bypass around the check valve. A mechanism is provided for applying forces to the piston of the second cylinder to pressurize the first cylinder via the check valve causing the piston of the first cylinder to itself be urged against or to urge another member against a locking track in a manner which maintains the jaw in a closed position. In a preferred embodiment, the cylinders are provided on the holding mechanism and the locking track is fixed to the ski. Sensors responsive to forces exerted on the holding mechanism by the ski shoe drive a control unit which, when the forces exceed a predetermined threshold, actuates the solenoid controlled valve to release the jaw.Other References
| InventorsAssigneeApplicationNo. 06/315671 filed on 10/27/1981US Classes:280/612, Magnetic280/628, Pivotable about both horizontal and vertical axis280/634With specific detent, adjustment, or tension structureField of Search280/612, Magnetic280/611, Ski fasteners280/613, Operating mechanism located in or under boot280/628, Pivotable about both horizontal and vertical axis280/627, With nonpivotal hold-down or clamp280/626, Pivotal about horizontal and/or vertical axis280/630, Single fixed axes280/631, Single, fixed, transverse horizontal axis280/634, With specific detent, adjustment, or tension structure280/624, Side or rear hold-down only (e.g., "Spademan" bindings)280/618, Plate is movable or releasable from ski280/620Attached to movable or releasable plateExaminersPrimary: Mitchell, David M.Attorney, Agent or FirmUS Patent References3820803, 3919563, 3933363, Safety ski bindingIssued on: 01/20/1976 Inventor: Schweizer , et al.4159124, Safety binding for a ski Issued on: 06/26/1979 Inventor: Salomon4160555, Safety bindings for skis Issued on: 07/10/1979 Inventor: Salomon4291894, Electrical ski boot release Issued on: 09/29/1981 Inventor: D'Antonio , et al.4298213, Ski safety binding of the diagonal release type Issued on: 11/03/1981 Inventor: Storandt4371188Method for programmed release in ski bindings Issued on: 02/01/1983 Inventor: Hull International ClassesA63C 9/08 (20060101)A63C 9/088 (20060101) Foreign Application Priority Data1980-10-31 AT |
