US4331859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for sterilizing false teeth
Assignee: Atrion Medical Products Inc
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Filing: 1980-11-28
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Granted: 1982-05-25
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Expires: 2000-11-28
Abstract
Abstract There is disclosed a disinfecting unit specifically designed for false or artificial dentures. The unit includes a base providing a cavity, having a support wall partially defined by a heater block. A receptacle for the dentures is provided, which is of sufficient size to accommodate dentures and a quantity of disinfecting solution. The support wall is spaced from the bottom wall of the base to accommodate the circuit and operating components, which include a re-set thermostat and a rockably mounted lever for operation of said re-set thermostat.
Inventors
- 👤 Michael D. Thomas
- 👤 Francis E. Ryder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:54
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/02; A61L2/04; A45; A45D; A45D44/00; A45D44/20; A61C; A61C17/00; A61C17/036
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
358 words
A false teeth sterilizer comprising: a base member including, a cavity defined by an intermediate support wall and a surrounding sidewall, said cavity opening at the top of the base, said base member further including a bottom wall spaced from said intermediate support wall to define a substantially closed chamber therebetween, said intermediate wall being partially defined by a heater block for supplying heat to said cavity, which heater block includes a first relatively flat surface portion facing into said cavity and a second, oppositely disposed, surface portion facing into said chamber; a receptacle for receiving the false teeth to be sterilized, said receptacle being removable from said cavity and comprising a lower wall seated against the first surface portion of said heater block and a sidewall in telescoping relationship with said base sidewall, the receptacle sidewall projecting upwardly through said opened top, said receptacle having a corresponding opened top and a removable cover; an electrical heating element for said heater block disposed in said chamber and engaged against said second, oppositely disposed, surface portion of the heater block; circuit components also disposed within said chamber for supplying current to said heating element and including a thermostatic switch in circuit with said heating element and disposed in said chamber and engaged against said second oppositely disposed surface portion of said heater block at a location spaced from said electrical heating element, said thermostatic switch being capable of breaking the flow of current to said electrical heating element when the heater block reaches a predetermined temperature, said thermostatic switch including a reset plunger within the chamber and extending toward said base wall, but spaced from said base wall, which plunger when operated is capable of reestablishing the flow of current to said electrical heating element, a lever member rockably mounted on an interior surface of said bottom wall and including a first end portion disposed between said plunger and said bottom wall, said lever including an opposite end projecting outwardly and exteriorally of said base member, such as said lever member may be depressed and rocked to cause said first end portion to engage and actuate said reset plunger.
Claim 2
Dependent Claim
358 words
A false teeth sterilizer comprising: a base member including, a cavity defined by an intermediate support wall and a surrounding sidewall, said cavity opening at the top of the base, said base member further including a bottom wall spaced from said intermediate support wall to define a substantially closed chamber therebetween, said intermediate wall being partially defined by a heater block for supplying heat to said cavity, which heater block includes a first relatively flat surface portion facing into said cavity and a second, oppositely disposed, surface portion facing into said chamber; a receptacle for receiving the false teeth to be sterilized, said receptacle being removable from said cavity and comprising a lower wall seated against the first surface portion of said heater block and a sidewall in telescoping relationship with said base sidewall, the receptacle sidewall projecting upwardly through said opened top, said receptacle having a corresponding opened top and a removable cover; an electrical heating element for said heater block disposed in said chamber and engaged against said second, oppositely disposed, surface portion of the heater block; circuit components also disposed within said chamber for supplying current to said heating element and including a thermostatic switch in circuit with said heating element and disposed in said chamber and engaged against said second oppositely disposed surface portion of said heater block at a location spaced from said electrical heating element, said thermostatic switch being capable of breaking the flow of current to said electrical heating element when the heater block reaches a predetermined temperature, said thermostatic switch including a reset plunger within the chamber and extending toward said base wall, but spaced from said base wall, which plunger when operated is capable of reestablishing the flow of current to said electrical heating element, a lever member rockably mounted on an interior surface of said bottom wall and including a first end portion disposed between said plunger and said bottom wall, said lever including an opposite end projecting outwardly and exteriorally of said base member, such as said lever member may be depressed and rocked to cause said first end portion to engage and actuate said reset plunger.
Claim 3
Dependent Claim
30 words
A device according to claim 1 in which a pin projects upwardly from said bottom wall and loosely through said lever to retain the lever assembled with said bottom wall.
Claim 4
Dependent Claim
46 words
A device according to claim 1, wherein an indicator lamp is included in said circuit and disposed in close proximity to said lever, said lever being transparent and capable of transmitting the light from said lamp to provide a visual indication when said circuit is energized.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |