DE69918490D1 - Selective nonlinear earplug - Google Patents

Selective nonlinear earplug

Info

Publication number
DE69918490D1
DE69918490D1 DE69918490T DE69918490T DE69918490D1 DE 69918490 D1 DE69918490 D1 DE 69918490D1 DE 69918490 T DE69918490 T DE 69918490T DE 69918490 T DE69918490 T DE 69918490T DE 69918490 D1 DE69918490 D1 DE 69918490D1
Authority
DE
Germany
Prior art keywords
earplug
selective nonlinear
nonlinear
selective
nonlinear earplug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69918490T
Other languages
German (de)
Other versions
DE69918490T2 (en
Inventor
Robert N Falco
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Innovative Properties Co
Original Assignee
Cabot Safety Intermediate LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/069,108 external-priority patent/US6148821A/en
Application filed by Cabot Safety Intermediate LLC filed Critical Cabot Safety Intermediate LLC
Publication of DE69918490D1 publication Critical patent/DE69918490D1/en
Application granted granted Critical
Publication of DE69918490T2 publication Critical patent/DE69918490T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

DE69918490T 1998-04-29 1999-04-21 Selective nonlinear earplug Expired - Lifetime DE69918490T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/069,108 US6148821A (en) 1998-04-29 1998-04-29 Selective nonlinear attenuating earplug
US69108 1998-04-29

Publications (2)

Publication Number Publication Date
DE69918490D1 true DE69918490D1 (en) 2004-08-12
DE69918490T2 DE69918490T2 (en) 2004-12-02

Family

ID=32710301

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69918490T Expired - Lifetime DE69918490T2 (en) 1998-04-29 1999-04-21 Selective nonlinear earplug

Country Status (1)

Country Link
DE (1) DE69918490T2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107750021A (en) * 2017-09-30 2018-03-02 江阴思安塑胶防护科技有限公司 Muffler and the noise reduction earplug for including it

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005039613B4 (en) * 2005-08-19 2008-02-28 Janssen, Dirk ear protection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107750021A (en) * 2017-09-30 2018-03-02 江阴思安塑胶防护科技有限公司 Muffler and the noise reduction earplug for including it
CN107750021B (en) * 2017-09-30 2024-04-02 江阴思安塑胶防护科技有限公司 Muffler and noise reduction earplug comprising same

Also Published As

Publication number Publication date
DE69918490T2 (en) 2004-12-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: 3M INNOVATIVE PROPERTIES CO., ST. PAUL, MINN., US