US3585669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically-operated toothbrush
Assignee: INSTITUT DE RECHERCHE WOOG
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Filing: 1969-09-29
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Granted: 1971-06-22
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Expires: 1989-09-29
Abstract
Abstract A HYDRAULICALLY-OPERATED TOOTHBRUSH HAS A PISTON ARRANGED TO BE RECIPROCATED BY PULSATING LIQUID. A SHAFT FOR CARRYING A TOOTHBRUSH HEAD IS MOUNTED FOR ROTATIONAL OSCILLATION. A COUPLING BETWEEN THE PISTON AND THE SHAFT OSCILLATES THE SHAFT AT A MULTIPLE OF THE RECIPROCATING FREQUENCY OF THE PISTON. ONE SPECIFIC COUPLING IS A PIN AND SLOT CONNECTION WHEREIN THE SLOT HAS SUCCESSIVE SECTIONS EXTENDING IN OPPOSITE ANGULAR DIRECTIONS. ANOTHER USES A PLUNGER TO OSCILLATE THE SHAFT, AND THE PISTON HAS AN ARM WHICH RECIPROCATES THE PLUNGER DIRECTLY DURING A PORTION OF ITS CYCLE, AND THROUGH ADDITIONAL MEANS SUCH AS A ROCKING LEVER DURING ANOTHER PORTION OF ITS CYCLE.
Inventors
- 👤 Michel A Moret
- 👤 Pierre J Jousson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:19
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/02; A46B13/04; A61; A61C; A61C17/00; A61C17/16; A61C17/22; A61C17/32; A61C17/38; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |