ROCKET LAUNCH ACCELERATION TESTING MACHINES

    公开(公告)号:US20250044186A1

    公开(公告)日:2025-02-06

    申请号:US18920889

    申请日:2024-10-19

    Abstract: A shock testing machine including: a carriage for holding a component to be tested, the carriage being configured to be movable in a linear direction along one or more elongated rails; a drum rotatable on a shaft, the drum having a circumferential surface; a cable having one end connected to the carriage and an other end connected to the drum; a motor having an output connected to the shaft to rotate the drum under the motive power of the motor to wind the cable on the circumferential surface of the drum; and a clutch disposed in a power train operatively connecting the motor to the drum, the clutch having a disengaged state and an engaged state. Where the motor is controlled to disengage the clutch while the motor reaches a predetermined rotational speed or predetermined rotational torque and to engage the clutch when the motor reaches the predetermined rotational speed or predetermined rotational torque to accelerate the carriage and component to be tested in the linear direction.

    Torsion Spring Actuated Inertia Igniters and Impulse Switches With Preset No-Fire Protection For Munitions and the Like

    公开(公告)号:US20210278186A1

    公开(公告)日:2021-09-09

    申请号:US16730512

    申请日:2019-12-30

    Abstract: A device including: a casing; an actuation mass rotatable between a first second positions relative to the casing; a first spring for biasing the actuation mass towards the second position; and a blocking mass rotatable between third fourth positions relative to the casing, a first portion of the blocking mass, while in the third position, is configured to engage with a second portion of the actuation mass to maintain the actuation mass in the first position and to prevent the actuation mass, against the biasing by the spring, from rotating to the second position; wherein upon an acceleration event having an acceleration and duration greater than a predetermined threshold, the blocking mass rotates to the fourth position to release engagement of the first portion of the blocking mass with the second portion of the actuation mass to allow the spring to move the actuation mass to the second position.

    High-G Shock Testing Machine
    13.
    发明申请

    公开(公告)号:US20200025645A1

    公开(公告)日:2020-01-23

    申请号:US16236420

    申请日:2018-12-29

    Abstract: A shock testing machine including: a test platform upon which one or more objects to be tested are mounted; one or more rails upon which the test platform is movable in a longitudinal direction; and a braking station for retarding a relative motion between the test platform and the braking station, wherein the test platform and the braking station include at least one portion interfering with the relative motion of the test platform and the braking station such that relative movement of the test platform and the braking station past the at least one portion produces a shock lateral to the longitudinal direction

    High-G shock testing machine
    14.
    发明授权

    公开(公告)号:US10190937B2

    公开(公告)日:2019-01-29

    申请号:US15058057

    申请日:2016-03-01

    Abstract: A shock testing machine including: a test platform upon which one or more objects to be tested are mounted; one or more rails upon which the test platform is movable in a longitudinal direction; and a braking station for retarding a relative motion between the test platform and the braking station, wherein the test platform and the braking station include at least one portion interfering with the relative motion of the test platform and the braking station such that relative movement of the test platform and the braking station past the at least one portion produces a shock lateral to the longitudinal direction.

    COMPACT INERTIAL IGNITERS FOR MUNITIONS AND THE LIKE WITH HIGH-G SHOCK PROTECTION

    公开(公告)号:US20240110774A1

    公开(公告)日:2024-04-04

    申请号:US18375470

    申请日:2023-09-30

    CPC classification number: F42C15/24

    Abstract: An inertial igniter including: a base; a first movable member, movable relative to the base in a first direction, the first movable member having a blocking portion; a second movable member movable relative to the base in a second direction, the second movable member having an engaging portion and an activation portion; and an intermediary member having a first portion engaged with the engaging portion and a second portion engaged with the blocking portion. Wherein upon the base experiencing an acceleration profile greater than a predetermined acceleration profile, the blocking portion disengages with the second portion allowing the intermediary member to move such that the first portion disengages with the engaging portion allowing the activation portion to move from an inactivated position to an activated position.

    LONG-DURATION SHOCK TESTING MACHINE
    16.
    发明公开

    公开(公告)号:US20230417625A1

    公开(公告)日:2023-12-28

    申请号:US18244271

    申请日:2023-09-10

    CPC classification number: G01M7/08

    Abstract: A shock testing machine including: a test platform; a carriage for carrying the test platform; one or more rails movably supporting one or both test platform and the carriage; a stop for stopping the carriage in a testing direction; and a brake for decelerating the carriage after the carriage engages the stop. Wherein the brake includes: a braking member separate from the carriage, the braking member having braking material separated by a gap, the carriage configured to expose the braking member to the stop when the carriage moves past the stop in the testing direction; and an elongated member extending from the carriage, the elongated member extending through the gap, respectively, in the braking member such that a braking pressure is applied from the braking material to the elongated member to decelerate the carriage when a braking surface of the braking member engages a braking surface of the stop.

    Actuation Mechanism for Actuating a Device and Method for Actuating a Device

    公开(公告)号:US20220381543A1

    公开(公告)日:2022-12-01

    申请号:US17878701

    申请日:2022-08-01

    Abstract: A method of actuating a device, the method including: allowing a movable mass to move back and forth in a first portion of a passage upon the device experiencing a first acceleration profile having a first magnitude and a first duration; and allowing the movable mass to move to a second portion of the passage to actuate the device upon the device experiencing a second acceleration profile having a second acceleration lower than the first acceleration and a second duration greater than the first duration. The device can be one of an inertial igniter, a normally open latching electrical circuit, a normally open non-latching electrical circuit, a normally closed latching electrical circuit or a normally closed non-latching electrical circuit.

    Rocket Launch Acceleration Testing Machines

    公开(公告)号:US20220299400A1

    公开(公告)日:2022-09-22

    申请号:US17573604

    申请日:2022-01-11

    Abstract: A shock testing machine including: a carriage for holding a component to be tested, the carriage being configured to be movable in a linear direction along one or more elongated rails; a drum rotatable on a shaft, the drum having a circumferential surface; a cable having one end connected to the carriage and an other end connected to the drum; a motor having an output connected to the shaft to rotate the drum under the motive power of the motor to wind the cable on the circumferential surface of the drum; and a clutch disposed in a power train operatively connecting the motor to the drum, the clutch having a disengaged state and an engaged state. Where the motor is controlled to disengage the clutch while the motor reaches a predetermined rotational speed or predetermined rotational torque and to engage the clutch when the motor reaches the predetermined rotational speed or predetermined rotational torque to accelerate the carriage and component to be tested in the linear direction.

    High-G Shock Testing Machine
    19.
    发明申请

    公开(公告)号:US20200025660A1

    公开(公告)日:2020-01-23

    申请号:US16236407

    申请日:2018-12-29

    Abstract: A brake for use with a shock testing machine, the brake including: a brake material for generating a frictional force to stop a test platform when the brake material is urged against an opposed braking surface; links for rotatably connecting the brake material to the test platform; a biasing spring to bias the brake material towards the braking surface; a restraint mechanism for restraining the braking material, against a biasing force of the biasing spring, in a retracted position where the braking material is separated from the braking surface; and a release mechanism for releasing the restraint of the release mechanism to bias the brake material against the braking surface; wherein the links are configured such that relative movement between the brake material and braking surface while the brake material and braking surface are engaged causes a frictional force between the brake material and braking material to increase.

    Long-duration shock testing machine

    公开(公告)号:US12292359B2

    公开(公告)日:2025-05-06

    申请号:US17555609

    申请日:2021-12-20

    Abstract: A shock testing machine including: a test platform for holding an item to be shock tested; a carriage for carrying the test platform and being movable relative to the test platform in a testing direction, the testing direction being a direction of movement of the carriage; one or more rails movably supporting one of the test platform and the carriage; a stop configured to stop the carriage from moving in the testing direction at a predetermined location while allowing the test platform to continue moving in the testing direction past the predetermined location; and a brake configured to decelerate the test platform after the carriage has been stopped by the stop.

Patent Agency Ranking