Gas separation: processes – Filtering – With cleaning of filter
Reexamination Certificate
2009-01-06
2011-11-01
Hopkins, Robert A (Department: 1776)
Gas separation: processes
Filtering
With cleaning of filter
C095S287000, C055S283000, C055S301000, C055S482000, C055S486000
Reexamination Certificate
active
08048206
ABSTRACT:
An apparatus and a method for filtering sectioning wastes of a microtome that are present in an air stream is suggested. The apparatus encompasses an aspiration device. With the aspiration device, sectioning waste can be aspirated from a blade region of the microtome with an air stream. The aspiration device comprises a main filter in which the sectioning wastes can be filtered from the air. In order to allow inadvertently aspirated histological sections to be retrieved again without mix-up, the apparatus according to the present invention has an aspiration device comprising a prefilter that is arranged between the blade region and the main filter and prefilters the sectioning wastes. The present invention further relates to a microtome.
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Related non-published U.S. Appl. No. 12/349,321, filed Jan. 6, 2009 and assigned to Leica Biosystems Nussloch GmbH.
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Schmitt Christoph
Walter Roland
Hopkins Robert A
Leica Biosystems Nussloch GmbH
Schlee Alexander R.
Schlee IP International P.C.
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