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    Push-to-fit earplug with tip cavity
    13.
    发明授权
    Push-to-fit earplug with tip cavity 有权

    公开(公告)号：US11304851B2

    公开(公告)日：2022-04-19

    申请号：US16643080

    申请日：2018-08-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Robert C. Coffin ,  Matthew V. Stonebraker, Jr. ,  Jacob H. Ely ,  Jeff L. Hamer ,  Kenneth F. Teeters ,  Ravi Thomas

    IPC: A61F11/08

    Abstract: An earplug comprises a core and a sound-attenuating body attached to the core, the sound-attenuating body comprising a tip cavity extending proximally from the tip of the sound-attenuating body and comprising a distal opening. The tip cavity side wall includes a plurality of protrusions extending inwardly toward the longitudinal axis of the core. The plurality of protrusions may include from 2 to 12 protrusions. A method of making an earplug includes covering at least a portion of a core with a material including unactivated foaming agent; inserting an end of the core and at least a portion of the material into a mold cavity; and activating the foaming agent to create a sound-attenuating body. The sound-attenuating body has a base, tip, and tip cavity with a plurality of protrusions. The mold cavity may include a boss with a cup and plurality of cut-outs on the cup for forming the protrusions.

    Battery
    15.
    外观设计
    Battery 有权

    公开(公告)号：USD993165S1

    公开(公告)日：2023-07-25

    申请号：US29758485

    申请日：2020-11-16

    Applicant: 3M Innovative Properties Company

    Designer： William P. Atwood ,  Yi-Chi Huang ,  Ravi Thomas ,  Jeffrey L. Hamer ,  Paul D. Henry

    Abstract: FIG. 1 is a top left rear perspective view of a battery showing our new design;
    FIG. 2 is a rear elevation view thereof;
    FIG. 3 is a front elevation view thereof;
    FIG. 4 is a right side elevation view thereof;
    FIG. 5 is a left side elevation view thereof;
    FIG. 6 is a top plan view thereof; and,
    FIG. 7 is a bottom plan view thereof.
    The regularly spaced broken lines shown in the drawings depict portions of the battery that form no part of the claimed design.
    The labels used herein to describe orientation (e.g., front, rear, left, right) are merely for reference and are not intended to limit the interpretation of the design.

    Push-to-fit earplug having an array of cavities
    16.
    发明授权
    Push-to-fit earplug having an array of cavities 有权

    公开(公告)号：US10660797B2

    公开(公告)日：2020-05-26

    申请号：US14282266

    申请日：2014-05-20

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Jeffrey L. Hamer ,  Kenneth F. Teeters ,  Ravi Thomas

    IPC: A61F11/08

    Abstract: The present description provides an earplug. One exemplary earplug described herein includes a stem and a sound attenuating body attached to the stem. The sound attenuating body includes a leading end, a base end, a tip region positioned rearward of the leading end, and a longitudinal axis extending between the leading end and the base end. An array of cavities is positioned within the tip region and spaced around the longitudinal axis and provides a collapsible volume.

    Push-To-Fit Earplug Having An Array of Cavities
    20.
    发明申请
    Push-To-Fit Earplug Having An Array of Cavities 审中-公开
    具有空穴阵列的即插式耳塞

    公开(公告)号：US20150335490A1

    公开(公告)日：2015-11-26

    申请号：US14282266

    申请日：2014-05-20

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Jeffrey L. Hamer ,  Kenneth F. Teeters ,  Ravi Thomas

    IPC: A61F11/08

    Abstract: The present description provides an earplug. One exemplary earplug described herein includes a stem and a sound attenuating body attached to the stem. The sound attenuating body includes a leading end, a base end, a tip region positioned rearward of the leading end, and a longitudinal axis extending between the leading end and the base end. An array of cavities is positioned within the tip region and spaced around the longitudinal axis and provides a collapsible volume.

    Abstract translation: 本说明书提供耳塞。 本文所述的一个示例性耳塞包括连接到杆上的杆和声音衰减体。 声音衰减体包括前端，基端，位于前端后方的尖端区域以及在前端与基端之间延伸的纵向轴线。 空腔阵列定位在尖端区域内并且围绕纵向轴线间隔开并提供可收缩体积。

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