US Patent No. 9,992,909

REVERSIBLE LOUVER FOR FABRIC CARD FAN SOLUTION


Patent No. 9,992,909
Issue Date June 05, 2018
Title Reversible Louver For Fabric Card Fan Solution
Inventorship Robert Wilcox, Santa Clara, CA (US)
Richard Hibbs, Santa Clara, CA (US)
Leonel de los Reyes, Santa Clara, CA (US)
Assignee Arista Networks, Inc., Santa Clara, CA (US)

Claim of US Patent No. 9,992,909

1. A system, comprising:a fan module comprising:
a first housing adapted to include a fan in a first orientation, wherein the first housing has a front side and a rear side on opposite sides of the first housing;
the fan, disposed within the first housing, is adapted to:
cause air to flow into the rear side of the first housing, through the first housing, and out of the front side of the first housing when in the first orientation;
a key receptacle, disposed on the front side of the first housing, adapted to:
mate with a first key, when the fan is in the first orientation;
a louver comprising:
a second housing comprising a set of slats, wherein the second housing has a front side and a rear side on opposite sides of the second housing;
the set of slats, disposed within the second housing, wherein the set of slats is adapted as:
a one way valve that allows air to flow into the rear side of the second housing, through the second housing, and out of the front side of the second housing;
the first key, disposed on the rear side of the second housing, is adapted to only mate with the key receptacle;
a second key, disposed on the front side of the second housing, is adapted to not mate with the key receptacle;
wherein coupling of the key receptacle with the first key comprises an approaching of the first housing towards, and in a direction perpendicular to, the rear side of the second housing;
wherein decoupling of the key receptacle with the first key comprises a distancing of the first housing from, and in the direction perpendicular to, the rear side of the second housing;
wherein after the first key is mated with the key receptacle, a first contact is formed between the front side of the first housing and rear side of the second housing and the first contact causes, when the fan is active, an air flow into the rear side of the first housing, through the first housing, out of the front side of the first housing, into the rear side of the second housing, through the second housing, and out of the front side of the second housing.