US 12,169,012 B1
Isolation system and method
David W. Shahan, Los Angeles, CA (US); Geoffrey P. McKnight, Los Angeles, CA (US); Sloan P. Smith, Sherman Village, CA (US); Christopher P. Henry, Thousand Oaks, CA (US); Christopher B. Churchill, Ventura, CA (US); and Andrew C. Keefe, Encino, CA (US)
Assigned to HRL LABORATORIES, LLC, Malibu, CA (US)
Filed by HRL LABORATORIES, LLC, Malibu, CA (US)
Filed on Oct. 26, 2023, as Appl. No. 18/495,727.
Application 18/495,727 is a division of application No. 18/110,729, filed on Feb. 16, 2023, granted, now 11,841,060.
Application 18/110,729 is a division of application No. 17/864,067, filed on Jul. 13, 2022, granted, now 11,624,420, issued on Apr. 11, 2023.
Application 17/864,067 is a division of application No. 14/839,770, filed on Aug. 28, 2015, granted, now 11,473,647, issued on Oct. 18, 2022.
Claims priority of provisional application 62/043,369, filed on Aug. 28, 2014.
Int. Cl. F16F 15/04 (2006.01)
CPC F16F 15/04 (2013.01) [F16F 2228/063 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An isolation system comprising:
a buckling beam comprising a first end and a second end; and
a first restraining mechanism engaged with the buckling beam, the first restraining mechanism being configured to variably control a first restraining condition of the buckling beam and to thereby affect a negative stiffness of the buckling beam,
wherein the buckling beam is movably pinned or fixed at the first end,
wherein the first restraining mechanism is configured to move between an engaged position and a disengaged position to control whether the buckling beam has a pinned restraining condition or a fixed restraining condition at the first end,
wherein the first restraining mechanism includes an actuator configured to move the first restraining mechanism between the engaged position and the disengaged position, and
wherein the actuator is a pneumatic actuator, a hydraulic actuator, an electromagnetic motor with lead screw, a piezoelectric actuator, or a magnetostrictive actuator.