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. 26, 2005
Filed:
Nov. 21, 2003
Frank Kienzler, Villingen-Schwenningen, DE;
Jürgen Voigt, Schramberg, DE;
Wolfgang Schillinger, Schiltach, DE;
Herbert Höni, Aichhalden-Roethenberg, DE;
Frank Kienzler, Villingen-Schwenningen, DE;
Jürgen Voigt, Schramberg, DE;
Wolfgang Schillinger, Schiltach, DE;
Herbert Höni, Aichhalden-Roethenberg, DE;
Junghans Feinwerktechnik GmbH & Co. KG, Schramberg, DE;
Abstract
An energy supply device for a mortar fuse includes a housing, a driven rotary shaft including a cylindrical shaft surface rotatably disposed in a stationary cylindrical bearing surface in the housing, and a fan connected to the shaft for rotating the shaft in a single direction of rotation in a speed range of 30,000-50,000 rpm. Either of the cylindrical bearing surface or the cylindrical shaft surface has a destructible coating of polytetrafluoroethylene, the coating having a thickness in the range of 0.02-0.03 mm, and being destructible in response to rotation of the shaft in the speed range for a period of time no longer than 5 minutes.