CA2404509C - Clapet d'expiration - Google Patents

Clapet d'expiration Download PDF

Info

Publication number: CA2404509C
Authority: CA; Canada
Prior art keywords: seal surface; orifice; flap; portions; flexible flap
Prior art date: 1995-08-04
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 - Fee Related

Application number

CA002404509A

Other languages

English (en)

Other versions

CA2404509A1 (fr

Inventor

John Lawrence Bowers

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 Co

Original Assignee

Minnesota Mining and Manufacturing Co

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.)

1995-08-04

Filing date

1996-07-23

Publication date

2005-11-08

1995-08-04 Priority claimed from GB9515986A external-priority patent/GB9515986D0/en

1996-07-23 Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co

1997-02-05 Publication of CA2404509A1 publication Critical patent/CA2404509A1/fr

2005-11-08 Application granted granted Critical

2005-11-08 Publication of CA2404509C publication Critical patent/CA2404509C/fr

2016-07-23 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

239000012530 fluid Substances 0.000 title claims abstract description 28
230000002093 peripheral effect Effects 0.000 claims description 23
238000001914 filtration Methods 0.000 claims description 8
238000011144 upstream manufacturing Methods 0.000 claims description 2
230000000694 effects Effects 0.000 description 3
239000000356 contaminant Substances 0.000 description 2
239000000463 material Substances 0.000 description 2
101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 description 1
244000043261 Hevea brasiliensis Species 0.000 description 1
241001504505 Troglodytes troglodytes Species 0.000 description 1
230000002301 combined effect Effects 0.000 description 1
238000005336 cracking Methods 0.000 description 1
230000007423 decrease Effects 0.000 description 1
229920001971 elastomer Polymers 0.000 description 1
239000000806 elastomer Substances 0.000 description 1
230000005484 gravity Effects 0.000 description 1
238000001746 injection moulding Methods 0.000 description 1
239000004816 latex Substances 0.000 description 1
229920000126 latex Polymers 0.000 description 1
238000000034 method Methods 0.000 description 1
239000003595 mist Substances 0.000 description 1
239000002991 molded plastic Substances 0.000 description 1
229920003052 natural elastomer Polymers 0.000 description 1
229920001194 natural rubber Polymers 0.000 description 1
238000007493 shaping process Methods 0.000 description 1
229920002379 silicone rubber Polymers 0.000 description 1
239000004945 silicone rubber Substances 0.000 description 1
238000003856 thermoforming Methods 0.000 description 1

Landscapes

Respiratory Apparatuses And Protective Means (AREA)
Check Valves (AREA)

CA002404509A 1995-08-04 1996-07-23 Clapet d'expiration Expired - Fee Related CA2404509C (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
GB9515986.9		1995-08-04
GB9515986A GB9515986D0 (en)	1995-08-04	1995-08-04	Uni-directional fluid valve
CA 2181878 CA2181878C (fr)	1995-08-04	1996-07-23	Clapet d'expiration

Related Parent Applications (1)

Application Number	Title	Priority Date	Filing Date
CA 2181878 Division CA2181878C (fr)	1995-08-04	1996-07-23	Clapet d'expiration

Publications (2)

Publication Number	Publication Date
CA2404509A1 CA2404509A1 (fr)	1997-02-05
CA2404509C true CA2404509C (fr)	2005-11-08

Family

ID=25678577

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002404509A Expired - Fee Related CA2404509C (fr)	1995-08-04	1996-07-23	Clapet d'expiration

Country Status (1)

Country	Link
CA (1)	CA2404509C (fr)

1996
- 1996-07-23 CA CA002404509A patent/CA2404509C/fr not_active Expired - Fee Related

Also Published As

Publication number	Publication date
CA2404509A1 (fr)	1997-02-05

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Legal Events

Date	Code	Title	Description
2003-07-18	EEER	Examination request
2015-09-03	MKLA	Lapsed	Effective date: 20150723