Vent for shielded enclosures

A vent for an electromagnetic interference shielded enclosure having a plurality of wall means with shielding means comprising:

• an elongated venting means extending through one of said wall means and being coupled to said shielding means, said venting means being in the form of an elongated cylinder;
• and
• septum means disposed within said venting means along at least a portion of the length of said venting means subdividing at least a portion of the length of said venting means into four substantially equal fluid flow sections.

A vent for an electromagnetic interference shielded enclosure having a plurality of wall means with shielding means comprising:

• an elongated venting means extending through one of said wall means and being coupled to said shielding means, said venting means being in the form of an elongated cylinder that has a substantially unrestricted fluid flow path between ends thereof;
• and
• septum means disposed within said venting means along at least a portion of the length of said venting means subdividing at least a portion of said venting means into fluid flow sections that are substantial fractional portions of the cross section of the venting means.

A vent for an electromagnetic interference shielded enclosure having a plurality of wall means with shielding means comprising:

• an elongated venting means extending through one of said wall means and being coupled to said shielding means, said venting means being a vent pipe having an elongated axis and
• septum means disposed within said venting means along at least a portion of the length of said venting means subdividing at least a portion of said venting means into fluid flow sections that are substantial fractional portions of the cross section of the venting means, said septum means having vanes radiating from a central portion that is disposed along said elongated axis of said vent pipe.

A vent for an electromagnetic interference shielded enclosure having a plurality of wall means with shielding means comprising:

• an elongated venting means extending through one of said wall means and being coupled to said shielding means, said venting means being in the form of an elongated cylinder;
• and septum means disposed within said venting means along at least a portion of the length of said venting means and is in the form of a cross so as to subdivide at least a portion of said venting means into four substantially equal, parallel extending fluid flow sections.

A vent for an electromagnetic interference shielded enclosure having a plurality of wall means with shielding means comprising:

• an elongated venting means extending through one of said wall means and being coupled to said shielding means, said venting means being in the form of an elongated cylinder and extends from a source end to a protected end;
• and
• septum means disposed within said venting means along at least a portion of the length of said venting means subdividing at least a portion of said venting means into fluid flow sections that are substantial fractional portions of the cross section of the venting means, said septum means being disposed along a portion of said venting means between said source end and said protected end.

A vent for an electromagnetic interference shielded enclosure having a plurality of wall means with shielding means comprising:

• an elongated venting means extending through one of said wall means and being coupled to said shielding means;
• and
• septum means disposed within said venting means along at least a portion of the length of said venting means subdividing at least a portion of said venting means into fluid flow sections that are substantial fractional portions of the cross section of the venting means, said septum means including a plurality of vanes projecting from a central portion that is located along the longitudinal axis of said venting means and which have beveled end surfaces.

A vent for an EMI shielded room having a wall means with a continuous electrically conductive wall shield providing an enclosed region shielded from an external region, said vent comprising:

• a venting means projecting through said wall means from said external region into said enclosed shielded region for providing fluid communication between said enclosed region and said external region, said venting means being coupled to said wall shield;
• and
• dividing means disposed along at least a portion of the length of said venting means subdividing at least a portion of said venting means into fluid flow sections that are substantial fractional portions of the cross section of the venting means.

A vent for an EMI shielded room having a wall means with a continuous electrically conductive wall shield providing an enclosed region shielded from an external region, said vent comprising:

• a venting means projecting through said wall means from said external region into said enclosed shielded region for providing fluid communication between said enclosed region and said external region, said venting means being coupled to said wall shield and being a vent pipe having an elongated axis;
• and
• dividing means disposed along at least a portion of the length of said venting means subdividing at least a portion of said venting means into fluid flow sections that are substantial fractional portions of the cross section of the venting means, said dividing means having vanes radiating from a central portion that is disposed along said elongated axis of said vent pipe.

A vent for an EMI shielded room having a wall means with a continuous electrically conductive wall shield providing an enclosed region shielded from an external region, said vent comprising:

• a venting means protecting through said wall means from said external region into said enclosed shielded region for providing fluid communication between said enclosed region and said external region, said venting means being coupled to said wall shield;
• and
• dividing means disposed along at least a portion of the length of said venting means subdividing at least a portion of said venting means into fluid flow sections that are substantial fractional portions of the cross section of the venting means, said dividing means being in the form of a cross that subdivides at least a portion of said venting means into four substantially equal, parallel extending fluid flow sections.