Apparatus for venting of protective panels

An apparatus for venting ornamental windows covered by a protective panel comprising:

• a) a stained glass window;
• b) a protective panel;
• c) a framing element;
• d) at least one airspace between said window and said protective panel;
• e) venting means comprising a plurality of pairs of vent openings each said pair positioned in a vertical portion of said framing element with an exit vent opening spaced vertically above an entry vent opening, said entry vent opening directly to air outside the apparatus having a first area and said exit vent opening directly to air outside the apparatus having a second area;
• f) each said entry vent opening comprises a first path causing a first directional turn upwards and a first interior opening spaced vertically above said entry vent opening and causing a second directional turn in a horizontal direction and each said exit vent opening comprises a second interior opening causing a directional turn and a second path causing a directional turn;
• and
• g) for each said entry vent opening, said first interior opening comprises a third area and for each said exit vent opening, each said second interior opening comprises a fourth area, each said first path comprises a first cross-sectional area and each said second path comprises a second cross-sectional area.

An apparatus for venting ornamental windows covered by a protective panel comprising:

• a) a stained glass window;
• b) a protective panel;
• c) at least one framing element;
• d) at least one airspace between said window and said protective panel;
• e) venting means comprising at least one pair of vent openings each pair comprising an entry vent opening having a first area and an exit vent opening having a second area and spaced vertically above said entry vent opening;
• f) each said entry vent opening comprises a first proximal path causing a first directional turn upwards and having a first proximal cross section, a first inside opening causing a second directional turn in a horizontal direction, a first distal path having a first distal cross section and a first interior opening vertically spaced above said entry vent opening all for allowing air to flow into said airspace and each said exit vent opening comprises a second proximal path causing a first directional turn and having a second proximal cross section, a second inside opening causing a second directional turn, a second distal path having a second distal cross section and a second interior opening vertically spaced below said exit vent opening all for allowing air to flow out of said airspace;
• g) said first interior opening comprises a third area and said second interior opening comprises a fourth area;
• h) said first inside opening comprises a fifth area and said second inside opening comprises a sixth area;
• i) for each said entry vent opening, said first area does not exceed said first proximal cross sectional area, said fifth area at least equals said first proximal cross sectional area, said first distal cross sectional area at least equals said fifth area, and said third area at least equals said first distal cross sectional area;
• and
• j) for each said exit vent opening, said fourth area does not exceed said second distal cross sectional area, said sixth area at least equals said second distal cross sectional area, said second proximal cross sectional area at least equals said sixth area and said second area at least equals said second proximal cross sectional area for facilitating adequate rate and volume of flow to minimize the effects of extreme temperatures and of bacterial damage.