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:
Feb. 19, 1980
Filed:
Apr. 04, 1978
Applicant:
Inventor:
Robert Eberle, Nurtingen, DE;
Assignee:
Metabowerke GmbH & Co., Nurtingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23Q / ; E02D / ;
U.S. Cl.
CPC ...
173 13 ; 173 48 ; 173 97 ;
Abstract
A hammer drill has a housing and a spindle mounted on the housing for rotating and reciprocating longitudinal movement. The spindle has a leading end provided with an end portion extending outward through a hole in the housing, facing a wall to be drilled. The housing is provided with a motor rotating the spindle and a member which subjects the spindle, when the latter rotates, to reciprocating longitudinal movement.