Lamp base adapter
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United States of America Patent
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Apr 7, 2009
Grant Date -
Oct 20, 2005
app pub date -
Mar 15, 2005
filing date -
Mar 23, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lamp adapter can adapter a mogul base lamp holder to accept a medium base lamp. The lamp adapter can accommodate only open fixture rated lamps. An open end of the lamp adapter into which a lamp is inserted has an elongated flange which allows only an open fixture rated lamp having a medium base to be completely threaded into the adapter and make electrical contact with a threaded metal sleeve and central button contact of the lamp holder. The geometry of the elongated flange prevents the threading of a closed fixture rated lamp into the adapter by taking advantage of the physical differences between the open and closed fixture rated lamps.
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