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:
Aug. 09, 1994
Filed:
Feb. 09, 1993
Paul Dummermuth, Zunzgen, CH;
Pamag AG, , CH;
Abstract
A treatment disk for devices for roughening or treating surfaces of stone floors, wherein hammer-like treatment points are mounted on the treatment disk opposite each of respectively semicircular slideways of the treatment disk. This shape makes it possible for an operation of a treatment point to cause the treatment disk to make a circular movement in the slideway and not, as previously known, a jumping or chattering movement as in a compressed air jack. The treatment disk is preferably made in three parts, so that the cutout has an overall shape resembling a three-leaf clover and the treatment points are offset by approximately 20.degree. with respect to the symmetry axes of the clover leaf. This shape has proven to be particularly effective.