Germicidal lamp with uv-blocking coating, and hvac system using the same
OwnerJohn J. Andros, Christian L. Sauskainventors
Life of this patent
Estimating the term…
Abstract
A germicidal lamp may include a glass envelope and a UV-blocking coating provided on the glass envelope. An HVAC system may include a duct, evaporator coil banks provided in the duct, a drip pan provided in the duct and below the evaporator coil banks, and a germicidal lamp inserted through an opening in the duct and configured to emit UV radiation. The germicidal lamp may include a glass envelope and a UV-blocking coating provided on the glass envelope, and the UV-blocking coating may be configured such that the evaporator coil banks are irradiated with UV radiation while a substantial portion of the UV radiation is prevented from reaching the drip pan.
Claims19
A germicidal lamp comprising:
- a glass envelope;
- a base provided at a first end of the glass envelope;
- a cap provided at a second end of the glass envelope;
- and
- a first UV-blocking coating provided on an inside of the glass envelope, the first UV-blocking coating beginning at the first end of the glass envelope and extending along the envelope for a first predetermined length;
- wherein the UV-blocking coating prevents transmission of UV radiation having an approximate wavelength of 100 nm to 280 nm;
- wherein the UV-blocking coating comprises at least one of powdered ceramic stain, titanium dioxide;
- aluminum oxide, zirconium oxide, magnesium oxide, and chromium oxide.
A germicidal lamp comprising:
- a glass envelope;
- and
- a UV-blocking coating provided on the glass envelope.
An HVAC system comprising:
- a duct;
- a plurality of evaporator coil banks provided in the duct;
- a drip pan provided in the duct and below the plurality of evaporator coil banks;
- a germicidal lamp inserted through an opening in the duct and configured to emit UV radiation, the germicidal lamp comprising:
- a glass envelope;
- and
- a UV-blocking coating provided on the glass envelope;
- wherein the UV-blocking coating is configured such that the plurality of evaporator coil banks are irradiated with UV radiation while a substantial portion of the UV radiation is prevented from reaching the drip pan.
Dependencies are inferred from the claim text.