US3576294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic cleansing device
Assignee: Bendix Corp
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Filing: 1969-02-26
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Granted: 1971-04-27
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Expires: 1989-02-26
Abstract
Abstract A cleansing device is herein disclosed in which the pressurized fluid provides the energy source to power the device and a fluidic element converts a stream of pressurized fluid into a stream of intermittent fluid pulses for the cleansing of the teeth and gums of the user.
Inventors
- 👤 Walton B Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:38
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/02; A61C17/028; Y; Y10; Y10S; Y10S128/00; Y10S128/10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2185
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
158 words
A source of pulses of pressurized fluid comprising: a source of fluid under pressure; a fluidic element means having at least two outlet passages and at least one control passage, operative to receive said fluid under pressure, said fluidic element means characterized by the fact that fluid flow from said source to at least one of said outlet passages will be stable; conduit means interconnecting said source and said fluidic element means; nozzle means connected to the first of said outlet passages operative to issue a pressurized fluid stream; discharge line means connected to the second of said outlet passages operative to discharge a fluid stream flowing in said second outlet passage; control means interconnecting said at least one control passage with the outlet passage in which stable fluid flow may be established operative to cause fluid flow in said fluidic element means to switch from one of said outlet passages to the other of said outlet passages.
Claim 2
Dependent Claim
158 words
A source of pulses of pressurized fluid comprising: a source of fluid under pressure; a fluidic element means having at least two outlet passages and at least one control passage, operative to receive said fluid under pressure, said fluidic element means characterized by the fact that fluid flow from said source to at least one of said outlet passages will be stable; conduit means interconnecting said source and said fluidic element means; nozzle means connected to the first of said outlet passages operative to issue a pressurized fluid stream; discharge line means connected to the second of said outlet passages operative to discharge a fluid stream flowing in said second outlet passage; control means interconnecting said at least one control passage with the outlet passage in which stable fluid flow may be established operative to cause fluid flow in said fluidic element means to switch from one of said outlet passages to the other of said outlet passages.
Claim 3
Dependent Claim
19 words
The device as claimed in claim 1 wherein said fluidic element means comprises at least one monostable fluidic element.
Claim 4
Dependent Claim
19 words
The device as claimed in claim 1 wherein said fluidic element means comprises at least one bistable fluidic element.
Claim 5
Dependent Claim
44 words
The device as claimed in claim 1 wherein said control means comprise passage means interconnecting said control port and one of said nozzle means and said discharge means and including variable impedance means to selectively vary the time duration of said pressurized fluid stream.
Claim 6
Dependent Claim
55 words
The device as claimed in claim 3 including further: said bistable fluidic element having a second control passage in opposition to said at least one control passage; and second control means interconnecting said second control passage and the other of said nozzle means and said discharge line means, operative to controlled switching of fluid flow.
Claim 7
Dependent Claim
29 words
The device as claimed in claim 5 including further: a fluid dump; and return line means interconnecting said discharge line means and said fluid dump to discharge fluid thereinto.
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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |