US4336816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for cleaning small objects, especially dentures
Assignee: Braun GmbH
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Filing: 1980-09-25
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Granted: 1982-06-29
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Expires: 2000-09-25
Abstract
Abstract A device for cleaning small objects, such as dentures, in a tank containing cleaning fluid is provided. The cleaning fluid is electromagnetically agitated. A removable basket having a perforated bottom is positioned in the tank. Releasably coupled to the bottom of the basket is a basket insert which also contains a perforated bottom. A removable screen is mounted between the basket and basket insert.
Inventors
- 👤 Eberhard Horz
- 👤 Robert Wirsing
- 👤 Gunter Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:41
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/036
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
129 words
A device for cleaning small objects in a tank capable of containing a cleaning fluid and provided with electromagnetic agitation comprising: a substantially cylindrical removable basket having side walls and a perforated bottom positioned in the tank; basket insert means having a perforated bottom and being releasably connectable to said basket, said basket insert means including a bearing pin and the electromagnetic agitation for the device is made up of an agitator disc rotatably mounted in the tank and a motor below the tank including a coupling disc of a magnetic material for electromagnetically engaging said agitator disc, said bearing pin serving as a bearing for said agitator disc; and filter screen means mountable between said perforated bottom of said basket and said perforated bottom of said basket insert.
Claim 2
Independent Claim
129 words
A device for cleaning small objects in a tank capable of containing a cleaning fluid and provided with electromagnetic agitation comprising: a substantially cylindrical removable basket having side walls and a perforated bottom positioned in the tank; basket insert means having a perforated bottom and being releasably connectable to said basket, said basket insert means including a bearing pin and the electromagnetic agitation for the device is made up of an agitator disc rotatably mounted in the tank and a motor below the tank including a coupling disc of a magnetic material for electromagnetically engaging said agitator disc, said bearing pin serving as a bearing for said agitator disc; and filter screen means mountable between said perforated bottom of said basket and said perforated bottom of said basket insert.
Claim 3
Dependent Claim
41 words
The device as in claim 1 wherein said removable basket includes a dome-shaped member having rib means proximate said agitator disc and horizontally extending above said agitator disc to prevent said agitator disc from sliding up and off said bearing pin.
Claim 4
Dependent Claim
33 words
The device as in claim 1 wherein said side walls of said basket include openings and said basket insert is provided with retaining fingers to releasably secure said basket insert in said openings.
Claim 5
Dependent Claim
37 words
The device as in claim 1 wherein said filter screen means is mounted between said basket and said basket insert so that foreign particles collect above said filter screen means but beneath the bottom of said basket.
Claim 6
Dependent Claim
19 words
The device as in claim 1 wherein said bearing pin is integrally formed as part of said basket insert.
Claim 7
Dependent Claim
20 words
The device as in claim 1 wherein said agitator disc includes on its upper surface a plurality of hemispherical bumps.
Claim 8
Dependent Claim
17 words
The device as in claim 1 wherein said filter screen means is snap-mounted into said basket insert.
Claim 9
Dependent Claim
20 words
The device as in claim 1 wherein said bearing pin is integrally formed as part of said filter screen means.
Claim 10
Dependent Claim
24 words
The device as in claim 1 wherein said bearing pin and said filter screen means are integrally formed as part of said basket insert.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-28 | 1985-12-28 | 1986-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-28 | 1989-12-28 | 1990-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-28 | 1993-12-28 | 1994-06-29 | $7700.00 | Window Closed / Lapsed |