Buckles – buttons – clasps – etc.
Patent
1975-11-20
1977-08-02
Moses, Richard L.
Buckles, buttons, clasps, etc.
240 47, F21V 3300
Patent
active
040398170
ABSTRACT:
In an operation microscope, an improved high intensity illumination lamp assembly comprises a high intensity lamp, a lamp base member, a lamp housing member for receiving the lamp and to which the base member is mounted, and having a plurality of orifices communicating with the interior lamp housing cavity and an opening through which the lamp extends, a fan for drawing air through the housing member orifices for cooling the lamp, and a conduit extending between the housing member and the fan.
REFERENCES:
patent: 2627019 (1953-01-01), Weiskopf
patent: 2667103 (1954-01-01), Silge
patent: 2727435 (1955-12-01), Ferrari
patent: 2730923 (1956-01-01), Gorham et al.
patent: 2909652 (1959-10-01), Pratt
patent: 3523724 (1970-08-01), Lancor
patent: 3911266 (1975-10-01), Oram
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