F16F 1/22

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9897161 Hingeless, large-throw negative stiffness structureDec 09, 14Feb 20, 18HRL LABORATORIES, LLC
9840012 Variable stiffness actuator with large range of stiffnessApr 24, 14Dec 12, 17MARQUETTE UNIVERSITY
9599180 Beam-based nonlinear springMay 03, 16Mar 21, 17MASSACHUSETTS INSTITUTE OF TECHNOLOGY
9382960 Beam-based nonlinear springJan 23, 15Jul 05, 16MASSACHUSETTS INSTITUTE OF TECHNOLOGY
8870169 Load stabilizing insert for vehicle springsMar 08, 13Oct 28, 14Not available
6841900 Reciprocating device and linear suspensionSep 24, 02Jan 11, 05RIX INDUSTRIES
6492748 Reciprocator and linear suspension element thereforJun 09, 00Dec 10, 02RIX INDUSTRIES
5280889 Shock isolatorApr 08, 91Jan 25, 94RAYTHEON COMPANY
5035406 Variable rate secondary spring for a primary leaf suspension springMar 09, 89Jul 30, 91MOOG AUTOMOTIVE PRODUCTS, INC.
4468014 Composite leaf springApr 23, 82Aug 28, 84PACCAR INC
4436201 Disc cartridge having a detachable lidNov 08, 82Mar 13, 84VICTOR COMPANY OF JAPAN, LTD.
4397108 Interacting spring assemblyJan 16, 81Aug 09, 83Not available
4315378 Inactive spring assemblyJul 06, 79Feb 16, 82Not available
4291480 Interacting leaf springsOct 12, 79Sep 29, 81Not available
4258495 Interacting springsJan 15, 79Mar 31, 81Not available
4205474 Inactive spring for magazineDec 11, 78Jun 03, 80Not available