Spring barrel module
Patent 6695103 Issued on February 24, 2004. Estimated Expiration Date: 
April 23, 2022. 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.
April 23, 2022. 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 542840 3160911 Combined rotary damper device including a stored energy mechanism and braking mechanism Rotation damper Power transmission device Damping element for damping translatory motion Pedal return device having improved hysteresis characteristics Device for dampening the movement of a pivotally supported structural part, for example, a flap in an automobile Patent #: 5862896 InventorsAssigneeApplicationNo. 10/127902 filed on 04/23/2002US Classes:188/291, Including clutch188/276, With means compensating for change in temperature or viscosity267/215Relatively rotating friction surfaces (e.g., drum type)ExaminersPrimary: Lavinder, JackAssistant: Williams, Thomas J. International ClassesF16F 9/12 (20060101)E05F 5/00 (20060101) F16F 9/10 (20060101) F16F 7/00 (20060101) F16F 7/06 (20060101) F03G 1/02 (20060101) F03G 1/00 (20060101) H04M 1/02 (20060101) F16F 9/516 (20060101) E05F 1/00 (20060101) E05F 1/12 (20060101) E05F 3/00 (20060101) E05F 3/20 (20060101) F16F 9/50 (20060101) Foreign Application Priority Data2001-04-27 FIAbstractThe invention concerns a spring barrel module having two chambers. A spring is located in the first chamber and a damper in the second chamber. The unidirectional damper is implemented by a clutch means that connects the damper plate to the spring shaft when the tightened spring is released, whereby the rotation of the damper slows down. Correspondingly, the clutch loosens the connection between the damper plate and the spring shaft when the spring is tightened. In low temperatures (e.g. below 0° C. degrees) the damper fails to dampen the rotation. The unidirectional feature of the damper improves both usability and durability. Breakage of the mechanical components of the spring barrel is prevented by an overload clutch, which means that the spring barrel module will tolerate even relatively rough handling of the equipment. | |
