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:
Apr. 18, 2023
Filed:
Sep. 22, 2022
Applicant:
Hilti Aktiengesellschaft, Schaan, LI;
Inventors:
Herbert Muenzenberger, Wiesbaden, DE;
Hans Henning Artmann, Munich, DE;
Markus Koegler, Buchloe, DE;
Egon Berghofer, Scheuring, DE;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62C 2/06 (2006.01); F16L 5/04 (2006.01); H02G 3/04 (2006.01); H02G 3/22 (2006.01); E04B 1/94 (2006.01);
U.S. Cl.
CPC ...
A62C 2/065 (2013.01); E04B 1/947 (2013.01); F16L 5/04 (2013.01); H02G 3/0412 (2013.01); H02G 3/22 (2013.01);
Abstract
A firestop collar for sealing of openings, especially of line penetrations, that pass through walls or ceilings, has a frame and a block of optionally intumescent material disposed therein.