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:
Apr. 04, 2006
Filed:
Oct. 25, 2002
Manfred Droste, Limburg-Offheim, DE;
Martin Soika, Idstein, DE;
Manfred Droste, Limburg-Offheim, DE;
Martin Soika, Idstein, DE;
Black & Decker Inc., Newark, DE (US);
Abstract
An electrically powered hammer comprising a hammer housing () with a hollow cylindrical spindle () mounted within it and an air cushion hammering mechanism mounted within the spindle for generating repeated impacts on a tool or bit of the hammer which hammering mechanism includes a piston (). A rotatingly driven intermediate shaft () is rotatably mounted in the housing and a wobble drive arrangement () reciprocatingly drives the piston (). The wobble drive arrangement includes a wobble sleeve () rotatably mounted on the intermediate shaft () and a wobble bearing () on the wobble sleeve. A support bearing () for the intermediate shaft is mounted on the wobble sleeve forwardly of the wobble bearing assembly. The support bearing () comprises a bearing ring () and the bearing ring is formed with a peripheral flange which can be fixed to a housing part () of the hammer housing ().