Vibration isolator
    1.
    发明授权

    公开(公告)号:US11644081B2

    公开(公告)日:2023-05-09

    申请号:US17454500

    申请日:2021-11-11

    CPC classification number: F16F15/046 F16F15/022

    Abstract: A vibration isolator, system, and method for minimizing propagation of vibrations between structures are configured to decouple axial and lateral structural modes. The vibration isolator includes an axial flexural support that provides axial compliance relative to a central axis and a lateral elastomeric support that provides lateral compliance relative to the central axis. The axial flexural support and the lateral elastomeric support provide stiffness about the central axis. The vibration isolator includes a first mount coupled to a first external structure and a second mount coupled to a second external structure. The axial flexural support is coupled to the first mount and the lateral elastomeric support is coupled to the second mount and the axial flexural support. Using an axial flexural support and a lateral elastomeric support enables tuning of the structural modes in one axis while minimizing the effects to the structural modes in the orthogonal axes.

    Telescope bypass mirror mechanism with minimized stow volume

    公开(公告)号:US11099371B2

    公开(公告)日:2021-08-24

    申请号:US15839573

    申请日:2017-12-12

    Abstract: An optical system (e.g., a telescope) comprising an optical assembly that reflects and refracts light rays through a single window about an optical path to a detector. A field-of-view bypass assembly comprises a bypass mirror movably coupled with respect to the optical assembly. The bypass mirror is selectively translatable and tiltable between a bypass configuration and a retracted configuration. In the bypass configuration, the bypass mirror is disposed in and interrupts the primary optical path and oriented to define a secondary optical path to the detector. In the retracted configuration, the bypass mirror is both disposed out of the primary optical path and is properly shielded to prevent stray light reflections.

    Internally Damped Crossbar Assembly Having Elastomeric Isolator

    公开(公告)号:US20210190170A1

    公开(公告)日:2021-06-24

    申请号:US16721726

    申请日:2019-12-19

    Abstract: A crossbar assembly for facilitating isolation of a sensor assembly from vibration of a payload mounting system on a vehicle comprises an outer crossbar segment, an inner crossbar segment, and an isolator. The outer crossbar segment comprises a payload mount interface operable to mount to a payload mount, and an outer isolator interface operable to mount to an isolator. The inner crossbar segment comprises a structure interface to mount to a structure, and an inner isolator interface operable to mount to the isolator. The isolator can be supported by the outer and inner crossbar segments. The isolator comprises an elastomeric component operable to elastically deform in response to relative movement between the outer and inner crossbar segments. The isolator operates to partially decouple the outer crossbar segment from the inner crossbar segment and dampen vibrations propagating between the outer and inner crossbar segments.

    BOOTSTRAP ACCUMULATOR CONTAINING INTEGRATED BYPASS VALVE

    公开(公告)号:US20190120256A1

    公开(公告)日:2019-04-25

    申请号:US15792971

    申请日:2017-10-25

    Inventor: Kirk A. Miller

    Abstract: An apparatus includes a bootstrap accumulator having multiple fluid expansion volumes each configured to receive fluid. The bootstrap accumulator also includes a piston assembly configured to move within the fluid expansion volumes based on pressures within the fluid expansion volumes. The piston assembly includes (i) a fluid pathway that couples the fluid expansion volumes and (ii) a bypass valve configured to selectively open or block the fluid pathway. The piston assembly could also include multiple pistons and a connecting rod coupling the pistons. The fluid pathway could include a narrower path through a first portion of the connecting rod and a wider path through a second portion of the connecting rod. The bypass valve could include a ball and a spring configured to push the ball to block the narrower path through the first portion of the connecting rod.

    Optical path switching device
    6.
    发明授权

    公开(公告)号:US09678331B1

    公开(公告)日:2017-06-13

    申请号:US15009292

    申请日:2016-01-28

    Inventor: Kirk A. Miller

    CPC classification number: G02B26/0816 G02B7/1827 G02B13/146 H04N5/2254

    Abstract: An optical path switching device is configured to selectively direct electromagnetic radiation toward one detector of a plurality of detectors. The switching device includes a platform, a mirror mount rotatably mounted on the platform by a bearing, a mirror coupled to the mirror mount, and an active actuator configured to rotate the mirror mount with respect to the platform a predetermined amount to direct electromagnetic radiation toward a desired detector.

    2D bi-pod flexure design, mount technique and process for implementation

    公开(公告)号:US11187871B2

    公开(公告)日:2021-11-30

    申请号:US15845981

    申请日:2017-12-18

    Inventor: Kirk A. Miller

    Abstract: A bipod flexure mount couples an optic to a base while isolating the optic from strain to resist wavefront error. The bipod flexure mount has a distal attachment pad to be coupled to the optic and a proximal attachment pad to be coupled to the base. A pair of beams extend between and couple the distal and proximal attachment pads. The distal attachment pad, the proximal attachment pad and the pair of beams are disposed in and define a planar layer with opposite planar surfaces that are substantially parallel. The bipod flexure mount is relatively flexible about four degrees of freedom and is relatively stiff about two degrees of freedom.

    2D Bi-Pod Flexure Design, Mount Technique and Process for Implementation

    公开(公告)号:US20190187407A1

    公开(公告)日:2019-06-20

    申请号:US15845981

    申请日:2017-12-18

    Inventor: Kirk A. Miller

    CPC classification number: G02B7/182 G02B7/1822 G02B7/1825 G02B23/02

    Abstract: A bipod flexure mount couples an optic to a base while isolating the optic from strain to resist wavefront error. The bipod flexure mount has a distal attachment pad to be coupled to the optic and a proximal attachment pad to be coupled to the base. A pair of beams extend between and couple the distal and proximal attachment pads. The distal attachment pad, the proximal attachment pad and the pair of beams are disposed in and define a planar layer with opposite planar surfaces that are substantially parallel. The bipod flexure mount is relatively flexible about four degrees of freedom and is relatively stiff about two degrees of freedom.

    Telescope Bypass Mirror Mechanism with Minimized Stow Volume

    公开(公告)号:US20190179129A1

    公开(公告)日:2019-06-13

    申请号:US15839573

    申请日:2017-12-12

    Abstract: An optical system (e.g., a telescope) comprising an optical assembly that reflects and refracts light rays through a single window about an optical path to a detector. A field-of-view bypass assembly comprises a bypass mirror movably coupled with respect to the optical assembly. The bypass mirror is selectively translatable and tiltable between a bypass configuration and a retracted configuration. In the bypass configuration, the bypass mirror is disposed in and interrupts the primary optical path and oriented to define a secondary optical path to the detector. In the retracted configuration, the bypass mirror is both disposed out of the primary optical path and is properly shielded to prevent stray light reflections.

    VIBRATION ISOLATION SYSTEM
    10.
    发明申请

    公开(公告)号:US20190162268A1

    公开(公告)日:2019-05-30

    申请号:US15825594

    申请日:2017-11-29

    Abstract: A vibration isolation device includes flexures and a multi-part mounting interface for coupling a frame that supports equipment to a structure. The flexures may include three pairs of flexures that allow movement in three orthogonal directions, to allow compliance and/or damp vibrations in the three directions. The flexures may surround the multi-part mounting interface, the parts of which are configured to move relative to one another. One of the parts of the mounting interfaces passes through another part of the mounting interface, such as in one or more holes in one of the interfaces. The device allows equipment mounted on the frame to be isolated from some or all of vibrations produced at the structure. In an example embodiment the vibration isolation system is used in mounting an optical sensor or device to an aircraft.

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