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, 2004
Filed:
May. 01, 2003
Applicant:
Inventors:
Alexander Hoop, Schaan, LI;
Christoph Würsch, Werdenberg, CH;
Hanspeter Schad, Grabs, CH;
Hans Boeni, Buchs/SG, CH;
Albert Binder, Buchs, CH;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25D 1/700 ;
U.S. Cl.
CPC ...
B25D 1/700 ;
Abstract
A pneumatic percussive mechanism having an axially reciprocating percussive loaded percussion piston ( ), wherein a non-contacting magnetic field sensitive sensor ( ) is arranged radial thereto. The percussion piston ( ) features at least externally ferromagnetic material and has a plurality of axially separated zones ( ) of different magnetic permeability.