CA2130059C - Manchon de traversee avec dispositif coupe-feu
- Google Patents
Manchon de traversee avec dispositif coupe-feu
Info
Publication number
CA2130059C
CA2130059CCA 2130059CA2130059ACA2130059CCA 2130059 CCA2130059 CCA 2130059CCA 2130059 CA2130059 CA 2130059CA 2130059 ACA2130059 ACA 2130059ACA 2130059 CCA2130059 CCA 2130059C
Authority
CA
Canada
Prior art keywords
diameter
ring
tubular sleeve
intumescent material
partition
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.)
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.)
Lamson and Sessions Co
Original Assignee
Lamson and Sessions 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.)
Filing date
Publication date
Priority claimed from US08/116,719external-prioritypatent/US5390465A/en
Application filed by Lamson and Sessions CofiledCriticalLamson and Sessions Co
Publication of CA2130059A1publicationCriticalpatent/CA2130059A1/fr
Application grantedgrantedCritical
Publication of CA2130059CpublicationCriticalpatent/CA2130059C/fr