Non-fogging mirror for dental or medical use
First Claim
1. A mirror for dental or medical use comprising a mirror blank having an edge and a rear surface, a casing sealed to said mirror edge, said casing defining a cavity adjacent said rear surface, electrically energizable heat generating means situated within said cavity and means for operably electrically connecting said heat generating means to electrical energizing means, said connecting means comprising first and second interengaging parts, said first part being mounted on and sealed to said casing and said second part being operably electrically connected to an electrical energizing means such that said heat generating means may be energized when said parts are engaged.
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Accused Products
Abstract
A casing seals to the edge of a mirror blank to form an autoclavable unit. An electrically energizable heater element is enclosed within the unit. The element is connected to a plug which extends from the casing and is adapted to engage a socket when the unit nests in a recess in a rack. A transformer is connected to the socket such that the heater is energized to preheat the unit while in the rack. Removal of the unit from the rack disconnects the electric supply, permitting the preheated unit to used without danger of shock. Several units may be preheated simultaneously on a single rack.
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Citations
21 Claims
- 1. A mirror for dental or medical use comprising a mirror blank having an edge and a rear surface, a casing sealed to said mirror edge, said casing defining a cavity adjacent said rear surface, electrically energizable heat generating means situated within said cavity and means for operably electrically connecting said heat generating means to electrical energizing means, said connecting means comprising first and second interengaging parts, said first part being mounted on and sealed to said casing and said second part being operably electrically connected to an electrical energizing means such that said heat generating means may be energized when said parts are engaged.
- 9. A mirror energizing system comprising a portable non-fogging mirror unit comprising a casing of a given shape, a mirror sealed to said casing, electrically energizable heat generating means situated within said casing, proximate said mirror and first connecting means mounted on said casing, and a rack, said rack comprising a wall defining a casing receiving recess, said wall having a shape corresponding to said shape of said casing, means for energizing said heat generating means, second connecting means situated in said rack wall so as to engage said first connecting means when said casing is received within said recess, said second connecting means being electrically connected to said energizing means.
Specification