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United States of America Patent
Stats
-
Feb 18, 2003
Grant Date -
N/A
app pub date -
Nov 15, 2000
filing date -
Nov 15, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for rotatably mounting on a mixing tube of a gas burner apparatus. The device includes a perforated shield portion for positioning over an air opening in the mixing tube to prevent insect intrusion therein, and an unperforated portion which partially or completely encloses an air opening of the mixing tube to prevent or limit primary air into said tube. A stop is provided on the device to limit rotation thereof and an extending tab provides for ease of rotation of the device on the mixing tube by providing an accessible surface against which pressure may be applied.
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