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:
Aug. 28, 1984
Filed:
Jul. 09, 1982
Richard R Licht, New Richmond, WI (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
An intumescent composite comprising a layer of intumescent sheet material having a restraining layer laminated thereto provides a superior intumescent barrier for use in sealing penetrations through floors, partitions and ceilings from smoke, fire, gas and water passage. The restraining layer causes the intumescent reaction to be generated in a directionalized manner and can be utilized to assure that the penetration cavity is optimally filled. The intumescent composite can have holes punched in it and can be used in fire protection applications where air circulation is desired. In the event of a fire, the expansion of the intumescent composite is in a direction which enable the punched holes to be quickly filled.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile