US3391790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overflow and recirculating systems for swimming pools
Assignee: Individual
•
Filing: 1966-03-08
•
Granted: 1968-07-09
•
Expires: 1986-03-08
Abstract
No abstract record available.
Inventors
- 👤 Lerner Marc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:21
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/12; E04H4/1209; E04H4/1218; E04H4/1227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
AN IMPROVED OVERFLOW AND RECIRCULATING SYSTEM FOR A WALLED FLUID CONTAINMENT UNIT COMPRISING; (A) A COLLECTION DUCT AROUND THE PERIMETER OF THE UNIT, THE DUCT HAVING AN OPEN TOP AND BEING INCLINED TOWARDS AN OPENING, (B) A PERIPHERICALLY COEXTENSIVE COPING DETACHABLY ATTACHED TO THE TOP OF THIS DUCT, (C) PERIPHERALLY SPACED ADJUSTABLE OVERFLOW MEANS IN THE WALLS OF THE UNIT AND IN DIRECT COMMUNICATION WITH THE DUCT, (D) COLLECTION MEANS ABUTTING THE DUCT AND IN DIRECT COMMUNICATION THEREWITH UNDER THE OPENING IN SAID DUCT TO RECEIVE THE OVERFLOW, (E) FILTER AND PUMPING MEANS CONNECTED TO THE COLLECTION MEANS, AND (F) RETURN FLOW MEANS SECURED TO THE FILTER AND PUMPING MEANS TO RETURN THE PROCESS FLUIDS BACK TO THE INTERIOR OF THE WALLED FLUID CONTAINMENT UNIT.
Claim 2
Dependent Claim
125 words
AN IMPROVED OVERFLOW AND RECIRCULATING SYSTEM FOR A WALLED FLUID CONTAINMENT UNIT COMPRISING; (A) A COLLECTION DUCT AROUND THE PERIMETER OF THE UNIT, THE DUCT HAVING AN OPEN TOP AND BEING INCLINED TOWARDS AN OPENING, (B) A PERIPHERICALLY COEXTENSIVE COPING DETACHABLY ATTACHED TO THE TOP OF THIS DUCT, (C) PERIPHERALLY SPACED ADJUSTABLE OVERFLOW MEANS IN THE WALLS OF THE UNIT AND IN DIRECT COMMUNICATION WITH THE DUCT, (D) COLLECTION MEANS ABUTTING THE DUCT AND IN DIRECT COMMUNICATION THEREWITH UNDER THE OPENING IN SAID DUCT TO RECEIVE THE OVERFLOW, (E) FILTER AND PUMPING MEANS CONNECTED TO THE COLLECTION MEANS, AND (F) RETURN FLOW MEANS SECURED TO THE FILTER AND PUMPING MEANS TO RETURN THE PROCESS FLUIDS BACK TO THE INTERIOR OF THE WALLED FLUID CONTAINMENT UNIT.
References Cited (Backward Citations)
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Cited
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Cited
US2932397A
Cited
US3169920A
Cited
US3316934A
Cited
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Cited
US3319264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |