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:
May. 06, 2003
Filed:
Oct. 25, 2001
Wolfgang Nehl, Waldachtal, DE;
Fischerwerke Artur Fischer GmbH & Co. KG, Waldachtal, DE;
Abstract
The invention relates to a plug ( ) for fastening to hollow or panel-type building materials and to solid building materials. The invention proposes providing the plug ( ) with expansion limbs ( ) that extend longitudinally and that are connected to one another by thin skins ( ) having a corrugation in the peripheral direction. That has the advantage of good screw guidance and a torsionally rigid construction of the plug ( ); especially when fastening to hollow and panel-type building materials, undesirable backwards rotation of the plug tip ( ) is avoided when screwing in an expansion screw by hand. Angled slits ( ) in the plug tip ( ) bring about good adaptation to screws having different diameters and different pitches of thread.