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公开(公告)号：US12237570B1
公开(公告)日：2025-02-25
申请号：US18444574
申请日：2024-02-16
Applicant: HRL Laboratories, LLC
Inventor： Christopher P. Henry , Walter S. Wall , Carson White , Richard Berg
Abstract: Tethered Unmanned Aircraft Antenna utilizing a Vertical Take Off and Landing (VTOL) Unmanned Aerial System (UAS) which may be provided by quadcopter drone (for example) constrained by a tether connected at one end to a maritime or land-based platform, the tether also being used as a RF antenna. The tether is capable of transmitting DC power to the UAS or drone at a desired antenna height and simultaneously supports RF transmission power with the help of a DC power isolation circuit. The tether is desirously lightweight and corona resistant.
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公开(公告)号：US20180195570A1
公开(公告)日：2018-07-12
申请号：US15405014
申请日：2017-01-12
Applicant: HRL LABORATORIES, LLC
CPC classification number: F16F1/22 , F16F1/185 , F16F15/002 , F16F15/1215 , F16F2228/063 , F16F2228/066 , F16F2230/0064 , F16F2230/183 , F16F2236/04
Abstract: A variable stiffness structure includes a first negative stiffness element configured to buckle in a first direction, a second negative stiffness element configured to buckle in a second direction opposite to the first direction, and an actuator operatively coupled to ends of the first and second negative stiffness elements to control a stiffness of the variable stiffness structure. The first negative stiffness element and the second negative stiffness element are mode-3 buckling beams.
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公开(公告)号：US12169012B1
公开(公告)日：2024-12-17
申请号：US18495727
申请日：2023-10-26
Applicant: HRL LABORATORIES, LLC
Inventor： David W. Shahan , Geoffrey P. McKnight , Sloan P. Smith , Christopher P. Henry , Christopher B. Churchill , Andrew C. Keefe
IPC: F16F15/04
Abstract: An isolation system and method are disclosed. The isolation system includes a beam that includes a first end and a second end. The isolation system may include at least one clamping block comprising first elastomeric material, and the first end may be coupled with the first elastomeric material by the at least one clamping block. An end condition of the buckling beam may be varied based on compression stiffening of the first elastomeric material.
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公开(公告)号：US12012184B1
公开(公告)日：2024-06-18
申请号：US17018870
申请日：2020-09-11
Applicant: HRL Laboratories, LLC
Inventor： Christopher P. Henry , Walter S Wall , Carson R. White
Abstract: A spar buoy for very low frequency (VLF) or low frequency (LF) transmission including a first portion of the spar buoy extending above a mean water line including a conductive structure including a coaxial feed, and an antenna coupled to the coaxial feed and extending above the conductive structure, and a second portion of the spar buoy below the mean water line including a transmitter coupled to the coaxial feed, an energy storage subsystem coupled to the transmitter and an electric power generation subsystem coupled to the energy storage subsystem.
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公开(公告)号：US10788095B2
公开(公告)日：2020-09-29
申请号：US15957202
申请日：2018-04-19
Applicant: HRL LABORATORIES, LLC
Inventor： David W. Shahan , Sloan P. Smith , Adam E. Sorensen , Casey J. Sennott , Christopher P. Henry , Geoffrey P. McKnight
IPC: F16F15/027 , F16F15/02 , F16F13/10 , F16F15/00 , E21B12/00
Abstract: An isolator configured to isolate a payload from unwanted vibrations and shocks. The isolator includes a housing having a first end and a second end opposite the first end, a primary chamber defined in the housing, a backpressure chamber defined in the housing, a conduit placing the primary chamber in fluid communication with the backpressure chamber, a backpressure membrane in the housing proximate the first end, an elastomer dome in the housing proximate the second end, and a shaft connected to the elastomer dome. The primary chamber and the backpressure chamber are between the backpressure membrane and the elastomer dome. The shaft is configured to be connected to the payload.
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Patent Agency Ranking
公开(公告)号：US10422397B1
公开(公告)日：2019-09-24
申请号：US14214242
申请日：2014-03-14
Applicant: HRL Laboratories, LLC
Inventor： Geoffrey P. McKnight , Christopher B. Churchill , Christopher P. Henry
Abstract: A variable stiffness structure configured to isolate a mass from unwanted vibrations includes a negative stiffness element and an actuator operatively coupled to the negative stiffness element. The actuator is configured to be actuated to control a stiffness of the negative stiffness element. The variable stiffness structure may also include a positive stiffness element coupled to the negative stiffness element.
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公开(公告)号：US20190270495A1
公开(公告)日：2019-09-05
申请号：US16238251
申请日：2019-01-02
Applicant: HRL LABORATORIES, LLC
Inventor： Christopher P. Henry , Sloan P. Smith , David W. Shahan , Joseph Creecy , Jeffrey Bowles , Christopher Swanhart , Robert Walling
Abstract: A watercraft includes a hull having inner and outer surfaces and at least one collapsible strake coupled to the hull. The collapsible strake includes a movable skin hingedly coupled to the hull. The collapsible strake also includes a dampening element and a negative stiffness element each extending from an inner surface of the movable skin to the outer surface of the hull. The movable skin is configured to rotate between an uncollapsed configuration having a first stiffness and a collapsed configuration having a second stiffness greater than the first stiffness.
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公开(公告)号：US09850974B1
公开(公告)日：2017-12-26
申请号：US14199878
申请日：2014-03-06
Applicant: HRL LABORATORIES, LLC
Inventor： Christopher P. Henry , Jie Jiang , Sloan P. Smith , Jacob Mikulsky
CPC classification number: F16F1/025 , F16F2236/027
Abstract: A nonlinear mechanical element including a buckling column and hard stops. In one embodiment when the nonlinear mechanical element is subjected to an increasing compressive load, the buckling column buckles at a critical load, resulting in reduced stiffness past the critical load. One or more lateral hard stops may be provided adjacent to the buckling column to prevent the buckling deformation from exceeding a certain extent, and axial hard stops may be provided to shift the load path away from the buckling column when a certain amount of compressive displacement has been reached.
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公开(公告)号：US09394950B1
公开(公告)日：2016-07-19
申请号：US14195569
申请日：2014-03-03
Applicant: HRL LABORATORIES, LLC
Inventor： Christopher P. Henry , Geoffrey P. McKnight , Sloan P. Smith
CPC classification number: F16B1/00 , F16D1/0835 , F16F1/18 , F16F1/185 , F16F1/324 , F16F3/023 , F16F2228/063
Abstract: A deformable component which is initially flat and which can be caused to buckle by the application of a radially inward preload force, applied using an outer clamp. The deformable component in the buckled configuration then exhibits negative stiffness over a portion of its range of travel, when an axial force is applied. The deformable component may be fabricated from metal sheet, and may take the form of a polygonal central portion and at least two arms extending radially outwards.
Abstract translation: 最初是扁平的并且可以通过使用外部夹具施加径向向内的预加载力而使其变形的可变形部件。 当施加轴向力时，弯曲构造中的可变形部件在其行进范围的一部分上呈现负刚度。 可变形部件可以由金属板制成，并且可以采取多边形中心部分的形式和至少两个径向向外延伸的臂。
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公开(公告)号：US11569684B1
公开(公告)日：2023-01-31
申请号：US16867411
申请日：2020-05-05
Applicant: HRL Laboratories, LLC
Inventor： Carson R. White , Walter S. Wall , Christopher P. Henry , Christopher S. Roper , James H. Schaffner , Ignacio Ramos
Abstract: An energy conversion device disposed in series with an RF driver circuit and an RF antenna, the energy conversion device being arranged to convert a portion of available RF power from the RF driver circuit into a different form of energy (direct current, thermal, or higher frequency electromagnetic waves such as light) which is converted, if needed, to DC and stored in an energy storage device coupled with the RF driver circuit for supplying recycled electrical energy thereto. The RF antenna may be an electrically small antenna and thus a antenna matching network may be provided between the RF driver circuit and the RF antenna. The energy conversion device may comprise, for example, (i) a transformer in combination with a rectifying circuit, (ii) a full wave rectifier, (iii) a half wave rectifier, (iv) a heat and/or light producing device, an energy converter (such as a generator) or a combination of the foregoing.
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