US3228611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cleaning showers
Assignee: Bematec SA
•
Filing: 1963-01-17
•
Granted: 1966-01-11
•
Expires: 1983-01-17
Abstract
No abstract record available.
Inventors
- 👤 Frank H Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:58
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/34; B; B05; B05B; B05B15/00; B05B15/50; B05B15/52; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/053; B08B9/055; B08B9/0551; D21F1/32; D21F1/325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A PAPER STOCK SHOWER ASSEMBLY COMPRISING: A SHOWER TUBE HAVING A LIQUID INLET END CONNECTED TO A SOURCE OF SPRAY LIQUID, AN OPPOSITE END LEADING TO AN ATMOSPHERIC PRESSURE ENVIRONMENT AND A PLURALITY OF LONGITUDINALLY SPACED, SPRAY ORIFICES LOCATED INTERMEDIATE OF SAID ENDS; FIRST, NORMALLY-OPEN, SHUT-OFF, VALVE MEANS AT THE INLET END OF SAID TUBE, SAID MEANS CONTROLLING THE ADMISSION OF LIQUID INTO SAID TUBE; SECOND, NORMALLY CLOSED, SHUT-OFF, VALVE MEANS AT THE OPPOSITE END OF SAID TUBE, SAID MEANS SION OF ATMOSPHERIC AIR INTO SAID TUBE, SAID MEANS INCLUDING MECHANICAL, ORIFICE-CLEANING MEANS AUTOMATICALLY ACTUATED BY FLUID PRESSURE; A LIQUID OUTLET CONDUIT CONNECTED TO THE INTERIOR OF SAID SHOWER TUBE PROXIMATE SAID INLET END AND LEADING TOE A SOURCE OF SUB-ATMOSPHERIC PRESSURE, INDEPENDENT OF SAID LIQUID SOURCE, FOR CREATING A VACUUM IN SAID TUBE, AND THIRD NORMALLY-CLOSED, SHUT-OFF, VALVE MEANS IS SAID LIQUID OUTLET CONDUIT, SAID MEANS CONTROLLING THE DISCHARGE OF LIQUID, AIR AND SEDIMENT FROM SAID TUBE.
Claim 2
Dependent Claim
158 words
A PAPER STOCK SHOWER ASSEMBLY COMPRISING: A SHOWER TUBE HAVING A LIQUID INLET END CONNECTED TO A SOURCE OF SPRAY LIQUID, AN OPPOSITE END LEADING TO AN ATMOSPHERIC PRESSURE ENVIRONMENT AND A PLURALITY OF LONGITUDINALLY SPACED, SPRAY ORIFICES LOCATED INTERMEDIATE OF SAID ENDS; FIRST, NORMALLY-OPEN, SHUT-OFF, VALVE MEANS AT THE INLET END OF SAID TUBE, SAID MEANS CONTROLLING THE ADMISSION OF LIQUID INTO SAID TUBE; SECOND, NORMALLY CLOSED, SHUT-OFF, VALVE MEANS AT THE OPPOSITE END OF SAID TUBE, SAID MEANS SION OF ATMOSPHERIC AIR INTO SAID TUBE, SAID MEANS INCLUDING MECHANICAL, ORIFICE-CLEANING MEANS AUTOMATICALLY ACTUATED BY FLUID PRESSURE; A LIQUID OUTLET CONDUIT CONNECTED TO THE INTERIOR OF SAID SHOWER TUBE PROXIMATE SAID INLET END AND LEADING TOE A SOURCE OF SUB-ATMOSPHERIC PRESSURE, INDEPENDENT OF SAID LIQUID SOURCE, FOR CREATING A VACUUM IN SAID TUBE, AND THIRD NORMALLY-CLOSED, SHUT-OFF, VALVE MEANS IS SAID LIQUID OUTLET CONDUIT, SAID MEANS CONTROLLING THE DISCHARGE OF LIQUID, AIR AND SEDIMENT FROM SAID TUBE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |