Outdoor communication cabinet including fan tray and filter and method of detecting blockage of communication cabinet filter
OwnerAlan James Skrepcinski, Deepak Kumar Sivanandan +2inventors
InventorsAlan James Skrepcinski, Deepak Kumar Sivanandan, Walter Mark Hendrix, Mark George Spaulding
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Abstract
An outdoor communication cabinet includes a housing having a interior, an opening into the interior and a door connected to the housing at the opening that includes a first aperture and a first fan tray with a plurality of fans, the fan tray being hingedly connected to the door for movement between first and second positions relative to the first aperture. Also a method of detecting blockage of filters in a communication cabinet.
Claims21
An outdoor communication cabinet comprising:
- a housing having a interior and an opening into said interior;
- a door connected to said housing at the opening and including a first aperture;
- and
- a first fan tray, including a plurality of fans, hingedly connected to said door for movement between first and second positions relative to said first aperture.
A method of detecting a degree of blockage of a filter in an outdoor communication cabinet, the cabinet comprising a housing and at least one fan for driving air into the housing and a filter for filtering the air driven into the housing by the at least one fan, said method comprising:
- providing a sensor in the housing configured to provide an output based on a sensed pressure of the housing;
- determining a first level of the output when the at least one fan is in a first state;
- determining a second level of the output when the at least one fan is in a second state;
- determining a relationship between the first level and the second level;
- and
- generating a signal when the relationship satisfies a predetermined condition.
An outdoor communication cabinet comprising:
- a housing having a interior and a first opening and a second opening into said interior;
- a door connected to said housing at said first opening;
- a fan tray, including a plurality of fans, connected to said door;
- a damper mounted at said second opening for regulating air flow through said second opening;
- and
- a controller operatively connected to said plurality of fans and to said damper for controlling operation of said plurality of fans and a position of said damper.
A method of detecting a degree of blockage of a filter in an outdoor communication cabinet, the cabinet comprising a housing having an interior and a first opening and a second opening into the interior, a door connected to the housing at the opening and including an aperture, a fan tray, including a plurality of fans, hingedly connected to the door for movement between first and second positions relative to the first aperture, a damper mounted at the second opening for regulating air flow through the second opening, and a controller operatively connected to the plurality of fans and to the damper for controlling operation of the plurality of fans and a position of the damper, the filter being mounted to said door over said aperture on a side of said first fan tray opposite from said interior, said method comprising:
- providing a pressure sensor in the housing configured to provide an output based on a sensed pressure of the housing;
- connecting the pressure sensor to the controller;
- determining a first level of the output when the at least one fan is in a first state;
- determining a second level of the output when the at least one fan is in a second state;
- determining a relationship between the first level and the second level;
- and
- generating a signal when the relationship satisfies a predetermined condition.
Dependencies are inferred from the claim text.