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:
Oct. 05, 2021
Filed:
Mar. 25, 2020
Applicant:
Hilti Aktiengesellschaft, Schaan, LI;
Inventor:
Herbert Muenzenberger, Wiesbaden, DE;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 5/04 (2006.01); A62C 2/06 (2006.01); H02G 3/04 (2006.01); H02G 3/22 (2006.01); A62C 3/16 (2006.01);
U.S. Cl.
CPC ...
F16L 5/04 (2013.01); A62C 2/065 (2013.01); A62C 3/16 (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, and is characterized in that an intumescent inlay () is disposed between the block () and the frame ().