CA2570061C - Systeme de commande par entrainement de porte de mine - Google Patents

Systeme de commande par entrainement de porte de mine Download PDF

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Publication number
CA2570061C
CA2570061C CA002570061A CA2570061A CA2570061C CA 2570061 C CA2570061 C CA 2570061C CA 002570061 A CA002570061 A CA 002570061A CA 2570061 A CA2570061 A CA 2570061A CA 2570061 C CA2570061 C CA 2570061C
Authority
CA
Canada
Prior art keywords
leaf
mine
door
open
closed positions
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
CA002570061A
Other languages
English (en)
Other versions
CA2570061A1 (fr
Inventor
William R. Kennedy
John M. Kennedy
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.)
Kennedy Jack Metal Products and Buildings Inc
Original Assignee
Kennedy Jack Metal Products and Buildings Inc
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 US09/538,199 external-priority patent/US6425820B1/en
Application filed by Kennedy Jack Metal Products and Buildings Inc filed Critical Kennedy Jack Metal Products and Buildings Inc
Publication of CA2570061A1 publication Critical patent/CA2570061A1/fr
Application granted granted Critical
Publication of CA2570061C publication Critical patent/CA2570061C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Power-Operated Mechanisms For Wings (AREA)
CA002570061A 2000-03-30 2001-03-29 Systeme de commande par entrainement de porte de mine Expired - Lifetime CA2570061C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/538,199 US6425820B1 (en) 2000-03-30 2000-03-30 Mine door power drive system
US09/538,199 2000-03-30
CA002399278A CA2399278C (fr) 2000-03-30 2001-03-29 Systeme de commande par entrainement de porte de mine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002399278A Division CA2399278C (fr) 2000-03-30 2001-03-29 Systeme de commande par entrainement de porte de mine

Publications (2)

Publication Number Publication Date
CA2570061A1 CA2570061A1 (fr) 2001-10-11
CA2570061C true CA2570061C (fr) 2009-05-26

Family

ID=37872018

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002570061A Expired - Lifetime CA2570061C (fr) 2000-03-30 2001-03-29 Systeme de commande par entrainement de porte de mine

Country Status (1)

Country Link
CA (1) CA2570061C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102661100A (zh) * 2012-05-14 2012-09-12 济南嘉宏科技有限责任公司 风门控制用气控装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102661100A (zh) * 2012-05-14 2012-09-12 济南嘉宏科技有限责任公司 风门控制用气控装置

Also Published As

Publication number Publication date
CA2570061A1 (fr) 2001-10-11

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Effective date: 20210329