Toothbrush sanitizer
First Claim
1. A toothbrush sanitizer comprising an irradiating source of ultraviolet light;
- a housing having a plurality of areas for supporting toothbrushes in positions which expose substantially all of the parts of said toothbrushes which enter the mouth, including their bristles and handles, to an irradiation of light from said source;
said housing having internal contours which direct the light to completely surround said brush so that all sides of both said bristles and handles of said brush are irradiated by said light, said housing being closed by a cover to contain all ultraviolet light from said source, cover switch means for preventing said light from lighting except when said cover is in place to contain said light, said cover having a lip with a predetermined wall thickness, and a labyrinth seal at the lip of said cover, said seal comprising two upstanding concentric walls on said housing separated by a space which is wider than said predetermined wall thickness of said cover lip, means for holding said cover in an elevated position between said concentric walls, and openings in the bottom of said housing to provide an entrance for air in order to provide an updraft of cool air between said openings and said labyrinth seal.
7 Assignments
0 Petitions
Accused Products
Abstract
A toothbrush sanitizer has a housing containing a centrally located elongated ultraviolet bulb surrounded by cavities for receiving standing toothbrushes. The cavities having one side open to receive ultraviolet light, have highly reflective surfaces to reflect light passing through said open side toward all sides of the toothbrushes, and have bottom contours which make the toothbrushes self-aligning. An electronic circuit lights the ultraviolet bulb with a short on, long off duty cycle. The initial on cycle is longer than the rest of the on cycles and occurs immediately after the cover is closed. A labyrinth seal permits passage of a cooling updraft of air while blocking an escape of ultraviolet light.
83 Citations
17 Claims
-
1. A toothbrush sanitizer comprising an irradiating source of ultraviolet light;
- a housing having a plurality of areas for supporting toothbrushes in positions which expose substantially all of the parts of said toothbrushes which enter the mouth, including their bristles and handles, to an irradiation of light from said source;
said housing having internal contours which direct the light to completely surround said brush so that all sides of both said bristles and handles of said brush are irradiated by said light, said housing being closed by a cover to contain all ultraviolet light from said source, cover switch means for preventing said light from lighting except when said cover is in place to contain said light, said cover having a lip with a predetermined wall thickness, and a labyrinth seal at the lip of said cover, said seal comprising two upstanding concentric walls on said housing separated by a space which is wider than said predetermined wall thickness of said cover lip, means for holding said cover in an elevated position between said concentric walls, and openings in the bottom of said housing to provide an entrance for air in order to provide an updraft of cool air between said openings and said labyrinth seal. - View Dependent Claims (2, 3, 4, 5, 6)
- a housing having a plurality of areas for supporting toothbrushes in positions which expose substantially all of the parts of said toothbrushes which enter the mouth, including their bristles and handles, to an irradiation of light from said source;
-
7. A toothbrush sanitizer comprising an irradiating source of ultraviolet light;
- a housing having a plurality of areas for supporting toothbrushes in positions which expose substantially all of the parts of said toothbrushes which enter the mouth, including their bristles and handles, to an irradiation of light from said source;
said housing having internal contours which direct the light to completely surround said brush so that all sides of both said bristles and handles of said brush are irradiated by said light, control means for causing said irradiation including a timer having a resistor-capacitor circuit for setting a duty cycle and a diode coupled across a part of a resistor forming said resistor-capacitor circuit whereby the circuit times a longer cycle period when a polarity of voltage in said circuit is in one direction and a shorter cycle period when said polarity is reversed. - View Dependent Claims (8)
- a housing having a plurality of areas for supporting toothbrushes in positions which expose substantially all of the parts of said toothbrushes which enter the mouth, including their bristles and handles, to an irradiation of light from said source;
-
9. A toothbrush sanitizer comprising an irradiating source of ultraviolet light;
- an housing having a plurality of areas for supporting toothbrushes in positions which expose substantially all of the parts of said toothbrushes which enter the mouth, including their bristles and handles, to an irradiation of light from said source;
said housing having internal contours which direct the light to completely surround said brush so that all sides of both said bristles and handles of said brush are irradiated by said light, each of said areas for supporting toothbrushes having an arcuate contour with a reflective surface, said toothbrush handle being centrally located within said arcuate contours so that light is reflected from said surface and onto said handle when said source is irradiating light.
- an housing having a plurality of areas for supporting toothbrushes in positions which expose substantially all of the parts of said toothbrushes which enter the mouth, including their bristles and handles, to an irradiation of light from said source;
- 10. A sanitizer for elongated personal appliances objects, said sanitizer having a centrally located elongated source of ultraviolet light, a plurality of cavities each having an elongated open dimension facing and aligned with the elongation of said source of light whereby light may enter said cavities along the length of said elongated open dimension, a closed side of each of said cavities being shaped to direct light from said source onto an object standing in said cavity, said closed sides of said cavities having a highly light reflective surface, and means beneath said cavities for collecting drippings from said cavities.
- 14. A sanitizer for elongated personal appliances objects, said sanitizer having a centrally located elongated source of ultraviolet light, a plurality of cavities each having an elongated open dimension facing and aligned with the elongation of said source of light whereby light may enter said cavities along the length of said elongated open dimension, a closed side of each of said cavities being shaped to direct light from said source onto an object standing in said cavity said closed sides of said cavities having a highly light reflective surface, means beneath said cavities for collecting drippings from said cavities, switch means for preventing light from said source from escaping said housing when said cover is removed, pilot light means associated with the exterior of said housing for indicating when said light source is active within said housing, and circuit means for lighting said light source with a duty cycle which is a short time on and a long time off, beginning with a longer than average on time after the cover is first replaced on said housing.
-
17. A sanitizer for elongated personal appliances objects, said sanitizer having a centrally located elongated source of ultraviolet light, a plurality of cavities each having an elongated open dimension facing and aligned with the elongation of said source of light whereby light may enter said cavities along the length of said elongated open dimension, a closed side of each of said cavities being shaped to direct light from said source onto an object standing in said cavity, said closed sides of said cavities having a highly light reflective surface, means beneath said cavities for collecting drippings from said cavities, and means comprising a ring which is transparent to ultraviolet light interposed between said source of ultraviolet light and said object in order to keep said object from touching said bulb without blocking said light.
Specification