Light generating apparatus for curing dental restorative composi

Details Light generating apparatus for curing dental restorative composi Light generating apparatus for curing dental restorative composi

1982-05-03

1984-05-22

Sebastian, Leland A.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

With means applying electromagnetic wave energy or...

20415911, 250504R, 250504H, 315360, 362804, B01J 110, B01J 112

Patent

active

044501390

ABSTRACT:
An apparatus for photochemically curing organic composites used to repair teeth includes a quartz halogen lamp (12) which is activated for a particular length of time by a cycle control circuit (42) which produces a control signal for a preselected time interval. A switching circuit (38) is coupled with the cycle control circuit (42) to interconnect an alternating current source with the quartz halogen lamp (12) at a point in the alternating current cycle when the alternating current crosses a zero voltage level. The control circuit (42) is operably coupled to a time delay circuit (40) which activates the control circuit (42) after a preselected time period after activation of the control circuit (40).

REFERENCES:
patent: 3712984 (1973-01-01), Lienhard
patent: 3868513 (1975-02-01), Gonser
patent: 3970856 (1976-07-01), Mahaffey et al.
patent: 3978341 (1976-08-01), Hoell
patent: 4229658 (1980-10-01), Gosner
patent: 4309617 (1982-01-01), Long

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