The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 1989
Filed:
Oct. 24, 1988
Applicant:
Inventor:
Rolf Tschudin-Mahrer, Lausen, CH;
Assignee:
Irbit Research & Consulting AG, Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
4283171 ; 428 57 ; 4283055 ; 4283173 ; 4283179 ; 428921 ;
Abstract
The invention relates to a sealing element for sealing openings in special walls subject to fire-protection requirements, brick wall breaches or the like, wherein for cost-effective manufacturability and processibility and simultaneously fire-protection assurance the sealing element is made of a precompressed strip, preferably impregnated with a chloroparaffin and neoprene base, with delayed restoration, the strip being interspersed with a heat-expanding intumescent compound in an essentially uniform distribution.