Patent BE539342A successfully refreshed from Google Patents.
Patent US3319980A successfully refreshed from Google Patents.
US3319980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dip tube connection
Assignee: Rheem Manufacturing Co
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Filing: 1965-08-09
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Granted: 1967-05-16
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Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 William A Demetriff
- 👤 Paul G Daugirda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:26
CPC Classifications
F; F16; F16L; F16L5/00; F16L5/02; F16L5/06; F24; F24H; F24H9/00; F24H9/12; F24H9/13; F24H9/133
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A WATER HEATER INCLUDING A TANK HAVING A HOT WATER OUTLET CONNECTION ADJACENT ITS TOP, A COLD WATER INLET CONNECTION COMPRISING AN INTERNALLY THREADED COUPLING SECURED TO THE TOP OF THE TANK IN REGISTRATION WITH AN OPENING THEREIN, A CUP MEMBER IN THE TANK SECURED TO THE TOP THEREOF AND FORMED IN ITS BOTTOM WITH AN OPENING REGISTERING WITH AND OF SMALLER DIAMETER THAN THE THREADED OPENING IN THE COUPLING, AND A VERTICAL CONDUIT EXTENDING THROUGH THE OPENING IN THE CUP MEMBER AND FORMED AT ITS UPPER END WITH AN ENLARGED PORTION OF LARGER DIAMETER THAN THE OPENING IN THE CUP MEMBER BUT OF SMALLER DIAMETER THAN THE OPENING IN THE COUPLING TO PASS THERETHROUGH, THE ENLARGED PORTION ENGAGING AND SUPPORTED BY THE BOTTOM OF THE CUP MEMBER AROUND THE OPENING THEREIN.
Claim 2
Dependent Claim
133 words
IN A WATER HEATER INCLUDING A TANK HAVING A HOT WATER OUTLET CONNECTION ADJACENT ITS TOP, A COLD WATER INLET CONNECTION COMPRISING AN INTERNALLY THREADED COUPLING SECURED TO THE TOP OF THE TANK IN REGISTRATION WITH AN OPENING THEREIN, A CUP MEMBER IN THE TANK SECURED TO THE TOP THEREOF AND FORMED IN ITS BOTTOM WITH AN OPENING REGISTERING WITH AND OF SMALLER DIAMETER THAN THE THREADED OPENING IN THE COUPLING, AND A VERTICAL CONDUIT EXTENDING THROUGH THE OPENING IN THE CUP MEMBER AND FORMED AT ITS UPPER END WITH AN ENLARGED PORTION OF LARGER DIAMETER THAN THE OPENING IN THE CUP MEMBER BUT OF SMALLER DIAMETER THAN THE OPENING IN THE COUPLING TO PASS THERETHROUGH, THE ENLARGED PORTION ENGAGING AND SUPPORTED BY THE BOTTOM OF THE CUP MEMBER AROUND THE OPENING THEREIN.
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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |