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. 02, 2005
Filed:
May. 09, 1997
Ryan C. Shirk, Mendota Heights, MN (US);
Stephen M. Sanocki, Stillwater, MN (US);
Joseph C. Peisert, St. Paul, MN (US);
Roger L. Langer, Hudson, WI (US);
Loyd R. Hornback, Iii, Stillwater, MN (US);
Ian R. Harding, Mahtomedi, MN (US);
Ryan C. Shirk, Mendota Heights, MN (US);
Stephen M. Sanocki, Stillwater, MN (US);
Joseph C. Peisert, St. Paul, MN (US);
Roger L. Langer, Hudson, WI (US);
Loyd R. Hornback, III, Stillwater, MN (US);
Ian R. Harding, Mahtomedi, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
The invention provides a preform insulating end cone suitable for forming the end cone of a pollution control device. The preform insulating end cone includes a cone shaped intumescent or non-intumescent sheet material. The sheet material has a plurality of slits enabling the sheet material to be cone shaped. A shape retaining element is in intimate contact with the intumescent sheet material. The shape retaining element enables the intumescent sheet material to maintain a cone shape. The invention also provides methods of making preform insulating end cones of the invention.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile