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:
Jul. 03, 1990
Filed:
Jun. 16, 1988
Applicant:
Inventors:
Robert J Deffeyes, Cincinnati, OH (US);
William A Manly, Arlington, TX (US);
Assignee:
Carlisle Corporation, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B27K / ;
U.S. Cl.
CPC ...
52515 ; 52748 ; 1562724 ; 148105 ;
Abstract
To indicate the origin of manufacture of the components of a roofing system, magnetically permeable particles are incorporated into the components. The particles are preferably loaded into the lap sealant and adhesive used to form field splices. Thus loaded, the lap sealant and/or adhesive has magnetically permeable properties or characteristics which are electromagnetically detectable through and beyond one layer of rubber sheeting. Detection of these particles provides an indication of origin of the material.