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    Varying strength interface system for robotic end-effector
    1.
    发明授权
    Varying strength interface system for robotic end-effector 有权

    公开(公告)号：US11642793B1

    公开(公告)日：2023-05-09

    申请号：US16899885

    申请日：2020-06-12

    Applicant: Amazon Technologies, Inc.

    Inventor： Margaret Jean Williams George ,  Gregory Coleman ,  Manikantan Nambi ,  Timothy G. Dietz

    IPC: B25J15/06

    CPC classification number: B25J15/0616

    Abstract: Aspects described herein include an end effector having an interface system that includes a body member attached to a mounting plate, and a plurality of strength-varying features at a plurality of regions of the interface system. The plurality of strength-varying features encourage the body member to repeatably deform into a deformed configuration. The end effector further comprises a vacuum port in fluid communication with an inner recess of the body member, and a plurality of actuators that apply a force to the mounting plate to pivot a portion of the mounting plate and deform the body member into the deformed configuration.

    Multi-piston, vacuum gripper assembly
    2.
    发明授权
    Multi-piston, vacuum gripper assembly 有权

    公开(公告)号：US12070850B1

    公开(公告)日：2024-08-27

    申请号：US16587652

    申请日：2019-09-30

    Applicant: Amazon Technologies, Inc.

    Inventor： Gregory Coleman ,  Timothy G Dietz ,  Leonard Thomas Lilliston, III ,  Beth A Marcus

    IPC: B25J15/06 ,  B25J9/12

    CPC classification number: B25J15/0616 ,  B25J9/123

    Abstract: A vacuum-gripper end effector conforms to and grasps items upon application of vacuum force and/or actuation of one or more actuators. The vacuum-gripper assembly can be round in top view or can be rectangular. At least three linear actuators deform the vacuum-gripper assembly. Four linear actuators may be spaced equidistantly apart on a square or rectangular vacuum-gripper assembly to enhance functionality of the vacuum-gripper, such as being capable of simultaneously engaging three sides formed at a corner of a box. A one-way actuation type air cylinder may be used. A low friction air cylinder may be returned to its retracted position by the resilience of the vacuum-gripper assembly.

    End effector having pliable bladder with adjustable rigidity
    3.
    发明授权
    End effector having pliable bladder with adjustable rigidity 有权

    公开(公告)号：US10357883B1

    公开(公告)日：2019-07-23

    申请号：US15966802

    申请日：2018-04-30

    Applicant: Amazon Technologies, Inc.

    Inventor： Michael James O'Connor ,  Gregory Coleman

    IPC: B25J15/06 ,  B25J15/00

    Abstract: End effectors and a related method of actuating items are disclosed. The end effector comprises a bladder comprising a pliable body that defines an inner recess in fluid communication with the manifold via a first connection. The pliable body has a sealing surface at its distal end and defines a chamber. The bladder further comprises a material disposed within the chamber. The method comprises contacting an item to conform the sealing surface to a contour of the item, transitioning the bladder to a structural state having greater rigidity, applying a vacuum to the inner recess via the first connection, and actuating the item.

    Robotic end effectors having fingers and nails to grasp and cage items
    4.
    发明授权
    Robotic end effectors having fingers and nails to grasp and cage items 有权

    公开(公告)号：US12226895B1

    公开(公告)日：2025-02-18

    申请号：US17398838

    申请日：2021-08-10

    Applicant: Amazon Technologies, Inc.

    Inventor： Manikantan Nambi ,  Chaitanya Mitash ,  Gregory Coleman ,  Timothy G. Dietz

    IPC: B25J15/00 ,  B25J9/16 ,  B25J15/06 ,  B25J15/12

    Abstract: Robotic end effectors may include a suction cup, one or more grasping fingers, and one or more flexible nails to securely and reliably engage, grasp, and cage items. The grasping fingers may move between open and closed positions to grasp items. In addition, the flexible nails may be coupled to ends of the grasping fingers to facilitate caging of items by the fingers and nails. For example, the flexible nails may bend, flex, or slide under, around, or relative to items and thereby enable grasping and caging of portions of items by the fingers and nails. The nails may be formed of various materials, with various layers or thicknesses of materials, and/or with variable flexibility or friction properties. Further, the nails may be transitioned or actuated between multiple configurations, including a sliding configuration and a grasping configuration.

    Vacuum-actuated end of arm tools with suction cups and extendible pistons
    10.
    发明授权
    Vacuum-actuated end of arm tools with suction cups and extendible pistons 有权

    公开(公告)号：US11772281B1

    公开(公告)日：2023-10-03

    申请号：US17067305

    申请日：2020-10-09

    Applicant: Amazon Technologies, Inc.

    Inventor： Noah Scott Wieckowski ,  Gregory Coleman

    IPC: B25J15/06

    CPC classification number: B25J15/0658 ,  B25J15/0683

    Abstract: Systems and methods to grasp objects using vacuum-actuated end of arm tools may include extending pistons and suction cups. For example, responsive to application of negative pressure, a piston may move from a retracted position to an extended position. In addition, responsive to grasping an object by a suction cup, the piston may remain in the extended position due to continued generation of pressure differentials that apply forces to the piston toward the extended position. Alternatively, a piston may be biased toward an extended position due to a spring force, and may remain in the extended position responsive to grasping an object. In the extended position of the piston, an object may be grasped with an amount of passive compliance to external forces that may be applied to the object.

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