Patent US3425410A successfully refreshed from Google Patents.
US3425410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure control for oral hygiene apparatus of the water jet type
Assignee: Aqua Tec Corp
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Filing: 1966-09-08
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Granted: 1969-02-04
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Expires: 1986-09-08
Abstract
No abstract record available.
Inventors
- 👤 Michael A Cammack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:47
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/0061; A61C1/0084; A61C1/0092; A61C17/00; A61C17/02; A61C17/0205
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A SYSTEM FOR TREATING GUM TISSUE BY APPLYING SPACED PRESSURE PULSES OF LIQUID TO DEPRESS DISCRETE AREAS OF GUM TISSUE WITH THE SPACING OF SAID PULSES ONE FROM THE OTHER OF DURATION WHICH PROVIDES FOR REBOUND TIME FOR SAID GUM TISSUE COMPRISING A LIQUID PUMP OF THE RECIPROCATING TYPE HAVING A PISTON THEREIN AND AN INTAKE PORT AND A DISCHARGE PORT, MEANS FOR SUPPLYING FLUID TO SAID INTAKE PORT, MEANS FOR PREVENTING REVERSE FLOW OF FLUID THROUGH SAID INTAKE PORT, MEANS FOR RECIPROCATING SAID PISTON FOR ALTERNATING DRAWING LIQUID THROUGH SAID INTAKE PORT AND PRODUCING PRESSURE PULSES IN SAID CYLINER WHEREBY A PULSED FLOW OF LIQUID IS PRODUCED THROUGH SAID DISCHARGE PORT, AND MEANS FOR MODIFYING THE ACTION OF SAID MEANS FOR PREVENTING REVERSE FLOW FOR AFFORDING LIMITED REVERSE FLOW THROUGH SAID INTAKE PORT TO RETURN A PORTION OF THE FLUID THROUGH SAID INTAKE PORT TO MODIFY THE PRESSURE OF FLUID DISCHARGED THROUGH SAID DISCHARGE PORT.
Claim 2
Independent Claim
156 words
A SYSTEM FOR TREATING GUM TISSUE BY APPLYING SPACED PRESSURE PULSES OF LIQUID TO DEPRESS DISCRETE AREAS OF GUM TISSUE WITH THE SPACING OF SAID PULSES ONE FROM THE OTHER OF DURATION WHICH PROVIDES FOR REBOUND TIME FOR SAID GUM TISSUE COMPRISING A LIQUID PUMP OF THE RECIPROCATING TYPE HAVING A PISTON THEREIN AND AN INTAKE PORT AND A DISCHARGE PORT, MEANS FOR SUPPLYING FLUID TO SAID INTAKE PORT, MEANS FOR PREVENTING REVERSE FLOW OF FLUID THROUGH SAID INTAKE PORT, MEANS FOR RECIPROCATING SAID PISTON FOR ALTERNATING DRAWING LIQUID THROUGH SAID INTAKE PORT AND PRODUCING PRESSURE PULSES IN SAID CYLINER WHEREBY A PULSED FLOW OF LIQUID IS PRODUCED THROUGH SAID DISCHARGE PORT, AND MEANS FOR MODIFYING THE ACTION OF SAID MEANS FOR PREVENTING REVERSE FLOW FOR AFFORDING LIMITED REVERSE FLOW THROUGH SAID INTAKE PORT TO RETURN A PORTION OF THE FLUID THROUGH SAID INTAKE PORT TO MODIFY THE PRESSURE OF FLUID DISCHARGED THROUGH SAID DISCHARGE PORT.
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) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |