Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Reexamination Certificate
2008-03-11
2008-03-11
Singh, Sunil (Department: 3673)
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
C030S170000, C015S093100, C180S209000
Reexamination Certificate
active
07341315
ABSTRACT:
The invention relates to an apparatus for removing coverings laid on even surfaces, comprising a support frame (10) for mounting driving wheels (16) and for accommodating a motor (17) and a gear (18) for driving the driving wheels (16), and comprising a motor-driven separating knife (25). According to the invention it is provided that at least one loosely rotatable support element (21) is arranged on the support frame (11) parallel to the driving wheels (16).
REFERENCES:
patent: 4880491 (1989-11-01), Jacobs et al.
patent: 5082330 (1992-01-01), Holder
patent: 5098165 (1992-03-01), Jacobs et al.
patent: 6135566 (2000-10-01), Anderson
patent: 6299257 (2001-10-01), Constantino
patent: 7618703 (1976-11-01), None
patent: 9112551 (1992-04-01), None
International Search Report dated Mar. 21, 2005.
Hammel Dieter
Scheffe Willi
Jenkins Wilson Taylor & Hunt, P.A.
Singh Sunil
Uzin Utz AG
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