Gas separation – Residue access – handling or removing means – Separable collection container
Reexamination Certificate
2007-11-20
2007-11-20
Smith, Duane (Department: 1724)
Gas separation
Residue access, handling or removing means
Separable collection container
C055S428000, C055S430000, C055S432000, C055S466000, C095S273000, C220S745000, C220S810000, C220S811000, C220S913000
Reexamination Certificate
active
10999540
ABSTRACT:
A hopper arrangement includes a damper arrangement selectively moveable in a plurality of positions to manipulate access to the interior volume. A first position includes a standby position wherein the enclosure and the damper arrangement block access to the interior volume. Another position includes a pressure-relief position wherein the interior volume is open to a continuous airflow path through the container. In some arrangements, there is an evacuation position wherein the damper arrangement allows access to the interior volume and blocks a continuous airflow path through the container. A gas turbine intake system includes a hood, a filter arrangement downstream of the hood and a collection hopper. The collection hopper is in airflow communication with an upstream side of the filter arrangement and downstream of the hood. The collection hopper includes a standby position and a pressure-relief position. A method of filtering air includes drawing air into a hood and then into a filter arrangement. Debris from the filter arrangement is collected in a collection hopper. Further, there is a step of allowing air to bypass the hood and flow to the filter arrangement through a bypass flow passageway selectively opened by the collection hopper.
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Handley Michael
Renwart Dominique
Vanormelingen Herman
Donaldson & Company, Inc.
Merchant & Gould P.C.
Smith Duane
Turner Sonji
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