US3612089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum reactivator
Assignee: Torit Corp
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Filing: 1968-10-28
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Granted: 1971-10-12
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Expires: 1988-10-28
Abstract
Abstract A vacuum reactivator is provided for use with an oral evacuator used to draw water, tooth chips and the like to a collector chamber. The chamber is automatically drained when the suction is turned off. A ball float valve is provided to turn off the vacuum when the liquid in the chamber reaches a predetermined depth, emptying the chamber of water. A plunger is provided for manually disengaging the ball valve from its seat after the chamber has been drained to restore vacuum.
Inventors
- 👤 Luis Beguiristain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:04
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/06; A61C17/12; A61C17/125; A61C17/13; A61M; A61M1/00; A61M1/71; A61M1/78; A61M1/782; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2577; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/3099; Y10T137/3109
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A vacuum reactivator for use in conjunction with an oral evacuator tube and a source of partial vacuum, the reactivator including: a collecting chamber having an inlet and an outlet extending into the same at the upper end thereof, a drain connection including valve means adapted to close the drain when the interior of the chamber is subjected to partial vacuum, a guide means adjoining said outlet and supporting a buoyant valve ball, a valve seat at the end of said guide means and cooperable with said valve ball to close said outlet wHen said valve ball is engaged therewith, manually operable means engageable with said valve ball to disengage said valve ball from said valve seat, a vertical partition extending from the top of said chamber to a point spaced from the bottom thereof between said inlet and said outlet, said partition extending completely across said collecting chamber and a flock of porous foam on one side of said partition wall and encircling said guide means.
Claim 2
Dependent Claim
167 words
A vacuum reactivator for use in conjunction with an oral evacuator tube and a source of partial vacuum, the reactivator including: a collecting chamber having an inlet and an outlet extending into the same at the upper end thereof, a drain connection including valve means adapted to close the drain when the interior of the chamber is subjected to partial vacuum, a guide means adjoining said outlet and supporting a buoyant valve ball, a valve seat at the end of said guide means and cooperable with said valve ball to close said outlet wHen said valve ball is engaged therewith, manually operable means engageable with said valve ball to disengage said valve ball from said valve seat, a vertical partition extending from the top of said chamber to a point spaced from the bottom thereof between said inlet and said outlet, said partition extending completely across said collecting chamber and a flock of porous foam on one side of said partition wall and encircling said guide means.
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |