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.:

US 6648079 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 18, 2003

Filed:

Mar. 16, 2001
Applicant:
Inventors:

Thomas Deimel, Mülheim, DE;

Markus Mellwig, Hagen, DE;

Heinz-Jürgen Prokop, Ratingen, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25D 1/700 ;
U.S. Cl.
CPC ...
B25D 1/700 ;
Abstract

A protective apparatus for preventing the infiltration of contaminants in a fluid-operated percussion device, having a striking tool ( ) that is guided to move in a housing ( ) and is driven by a percussion piston in the striking direction (arrow ), and a seal ( ) that is supported at least indirectly on the housing ( ), on the one hand, and on the striking tool ( ), on the other hand, and has a securing segment that is fixedly disposed with respect to either the housing or the striking tool. The seal ( ) is disposed between the inner guide portion ( ) of the striking-tool guide and the theoretical striking plane ( ) of the percussive piston on the striking tool ( ), when seen in the direction opposite the striking direction (arrow ), such that the countersurface ( ) for the seal, which countersurface moves relative to the securing segment ( ) of the seal ( ) and is in contact with the seal, is unaffected by wear.


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Deimel, Thomas. (2003). Protective apparatus for preventing the infiltration of contaminants in a fluid-operated percussion device (U.S. Patent No. 6648079). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6648079

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