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公开(公告)号：US11123902B2
公开(公告)日：2021-09-21
申请号：US16103194
申请日：2018-08-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： James P. Endle , Jeffrey L. Hamer , Alan R. Seville , Kenneth F. Teeters
IPC: B29C44/12 , C08J9/10 , C08J9/32 , A61F11/08 , B29C44/34 , B29L31/00 , B29K25/00 , B29L9/00 , B29L31/48
Abstract: A method of making personal protective equipment, such as a push-in earplug, is disclosed. The method includes the steps of covering a substrate with an outer layer that includes an unactivated foaming agent, positioning at least a portion of the outer layer in a mold, and activating the foaming agent such that a portion of the outer layer expands.
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公开(公告)号：US09549855B2
公开(公告)日：2017-01-24
申请号：US13768214
申请日：2013-02-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jeffrey L. Hamer , Kenneth F. Teeters , Ravi Thomas
IPC: A61F11/08
CPC classification number: A61F11/08 , A61F2011/085 , A61F2210/0071 , A61F2240/004 , A61F2250/0014 , B29C44/1271 , B29K2101/10 , B29K2101/12 , B29L2031/768
Abstract: Hearing protection devices, e.g., push-to-fit earplugs, having a tip cavity in the sound attenuating body and methods of manufacturing the hearing protection devices are described herein.
Abstract translation: 本文描述了在声音衰减体中具有尖端空腔的听力保护装置，例如按钮式耳塞，以及制造听力保护装置的方法。
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公开(公告)号：US20180361633A1
公开(公告)日：2018-12-20
申请号：US16103194
申请日：2018-08-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： James P. Endle , Jeffrey L. Hamer , Alan R. Seville , Kenneth F. Teeters
Abstract: A method of making personal protective equipment, such as a push-in earplug, is disclosed. The method includes the steps of covering a substrate with an outer layer that includes an unactivated foaming agent, positioning at least a portion of the outer layer in a mold, and activating the foaming agent such that a portion of the outer layer expands.
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公开(公告)号：USD759802S1
公开(公告)日：2016-06-21
申请号：US29491294
申请日：2014-05-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Designer： Jeffrey L. Hamer , Kenneth F. Teeters , Ravi Thomas
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公开(公告)号：US20140230830A1
公开(公告)日：2014-08-21
申请号：US13768214
申请日：2013-02-15
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jeffrey L. Hamer , Kenneth F. Teeters , Ravi Thomas
IPC: A61F11/08
CPC classification number: A61F11/08 , A61F2011/085 , A61F2210/0071 , A61F2240/004 , A61F2250/0014 , B29C44/1271 , B29K2101/10 , B29K2101/12 , B29L2031/768
Abstract: Hearing protection devices, e.g., push-to-fit earplugs, having a tip cavity in the sound attenuating body and methods of manufacturing the hearing protection devices are described herein.
Abstract translation: 本文描述了在声音衰减体中具有尖端空腔的听力保护装置，例如按钮式耳塞，以及制造听力保护装置的方法。
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Patent Agency Ranking
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.
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公开(公告)号：US10966867B2
公开(公告)日：2021-04-06
申请号：US15693997
申请日：2017-09-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： James P. Endle , Jeffrey L. Hamer , Alan R. Seville , Kenneth F. Teeters
IPC: A61F11/08 , B29C44/50 , C08J9/10 , C08J9/32 , B29C44/02 , B29C44/04 , B29C44/32 , B29C44/08 , B29C44/26 , B29L31/00 , B29K23/00 , B29K105/04
Abstract: A push-in earplug including an elongate core and outer layer is disclosed. The outer layer includes a sound attenuating portion having a first average density and a stem portion having a second average density, and the second average density is greater than the first average density.
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公开(公告)号：US10065344B2
公开(公告)日：2018-09-04
申请号：US14601356
申请日：2015-01-21
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： James P. Endle , Jeffrey L. Hamer , Alan R. Seville , Kenneth F. Teeters
IPC: B29C44/12 , B29C44/34 , C08J9/10 , C08J9/32 , B29L31/00 , A61F11/08 , B29K25/00 , B29L9/00 , B29L31/48
CPC classification number: B29C44/12 , A61F11/08 , A61F2011/085 , B29C44/1266 , B29C44/3484 , B29K2025/04 , B29L2009/00 , B29L2031/4842 , B29L2031/768 , C08J9/105 , C08J9/32 , C08J2203/04 , C08J2203/184 , C08J2203/22 , C08J2353/02
Abstract: A method of making personal protective equipment, such as a push-in earplug, is disclosed. The method includes the steps of covering a substrate with an outer layer that includes an unactivated foaming agent, positioning at least a portion of the outer layer in a mold, and activating the foaming agent such that a portion of the outer layer expands.
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公开(公告)号：USD798435S1
公开(公告)日：2017-09-26
申请号：US29491298
申请日：2014-05-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Designer： Jeffrey L. Hamer , Kenneth F. Teeters , Ravi Thomas
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公开(公告)号：USD798434S1
公开(公告)日：2017-09-26
申请号：US29491296
申请日：2014-05-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Designer： Jeffrey L. Hamer , Kenneth F. Teeters , Ravi Thomas
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