US3174658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure liquid sprayer
Assignee: Individual
•
Filing: 1961-12-04
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Granted: 1965-03-23
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Expires: 1981-12-04
Abstract
No abstract record available.
Inventors
- 👤 Edward H Wittenberg
- 👤 Jerome H Chopa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:39
CPC Classifications
B; B05; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A SPRAYER INCLUDING A TANK HAVING UPPER AND LOWER SECTIONS, A FLEXIBLE REMOVABLE DIAPHRAGM WITHIN SAID TANK FOR DIVIDING SAID TANK INTO UPPER AND LOWER NON-COMMUNICATING CHAMBERS, THE UPPER CHAMBER BEING ADAPTED TO CONTAIN A LIQUID TO BE SPRAYED AND THE LOWER CHAMBER BEING ADAPTED TO RECEIVE A FLUID UNDER PRESSURE, SAID DIAPHRAGM BEING GENERALLY CUP-SHAPED AND PROVIDED ON ITS PERIPHERY WITH AN ANNULAR INWARD PROJECTING WEDGE-SHAPED BEAD OF INCREASED CROSS SECTION; AND ANNULAR SEALING MEANS COMPRISING A FIRST VERTICAL ANNULAR PORTION SECURED TO SAID INTERIOR SURFACE OF SAID TANK, A SECOND GENERALLY HORIZONTAL ANNULAR PORTION EXTENDING INWARDLY AWAY FROM SAID INTERIOR SURFACE OF SAID TANK AND A THIRD GENERALLY VERTICAL ANNULAR PORTION DEPENDING THEREFROM TO PROVIDE AN ANNULAR BEAD-RECEIVING CHANNEL BETWEEN THE THIRD PORTION
Claim 2
Dependent Claim
125 words
A SPRAYER INCLUDING A TANK HAVING UPPER AND LOWER SECTIONS, A FLEXIBLE REMOVABLE DIAPHRAGM WITHIN SAID TANK FOR DIVIDING SAID TANK INTO UPPER AND LOWER NON-COMMUNICATING CHAMBERS, THE UPPER CHAMBER BEING ADAPTED TO CONTAIN A LIQUID TO BE SPRAYED AND THE LOWER CHAMBER BEING ADAPTED TO RECEIVE A FLUID UNDER PRESSURE, SAID DIAPHRAGM BEING GENERALLY CUP-SHAPED AND PROVIDED ON ITS PERIPHERY WITH AN ANNULAR INWARD PROJECTING WEDGE-SHAPED BEAD OF INCREASED CROSS SECTION; AND ANNULAR SEALING MEANS COMPRISING A FIRST VERTICAL ANNULAR PORTION SECURED TO SAID INTERIOR SURFACE OF SAID TANK, A SECOND GENERALLY HORIZONTAL ANNULAR PORTION EXTENDING INWARDLY AWAY FROM SAID INTERIOR SURFACE OF SAID TANK AND A THIRD GENERALLY VERTICAL ANNULAR PORTION DEPENDING THEREFROM TO PROVIDE AN ANNULAR BEAD-RECEIVING CHANNEL BETWEEN THE THIRD PORTION
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |