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:
Nov. 10, 2020
Filed:
Jul. 16, 2015
Hilti Aktiengesellschaft, Schaan, LI;
Benno Verhaag, Furstenfeldbruck, DE;
Bernd Ziegler, Hiltenfingen, DE;
Hubert Ludwig, Landsberg am Lech, DE;
Michael Brandner, Landsberg am Lech/Erpfting, DE;
Klaus Hauser, Schwabmunchen, DE;
HILTI AKTIENGESELLSCHAFT, Schaan, LI;
Abstract
The battery unit according to the invention for a handheld machine tool comprises a number of battery cells, with at least one of the battery cells being embodied as an isolation battery cell, and showing a fire protection jacket comprising an intumescent material. The fire protection jacket surrounds the isolation battery cell at least partially such that the isolation battery cell is surrounded by the fire protection jacket at a predetermined temperature such that the isolation battery cell is thermally insulated.