US3871483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicular drainage system
Assignee: Individual
•
Filing: 1973-09-10
•
Granted: 1975-03-18
•
Expires: 1993-09-10
Abstract
Abstract A vehicular drainage system is disclosed having an elongated tubing permitting drainage by the owner of the vehicle. A valve is installed near the bottom of the sump to prevent drainage if the tubing becomes separated from the sump. The valve is activated by a wire or cable arrangement connected to the drain cork or plug. Movement of the cock or plug causes tension on the valve permitting drainage.
Inventors
- 👤 Rene J Espinosa
- 👤 Dominador Espinosa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:01
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/04; F01M11/0408; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87981
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
94 words
A drainage system comprising a check or coupling valve attachable to a vehicular sump, said valve seated on a valve seat, a length of tubing attached at one end to the outlet side of the valve seat, a rotatable drain plug movably secured to the other end of said tubing, said other end of said tubing defining a drain hole, and a cable interconnecting said valve and plug through said tube, said plug closing said drain hole in the tubing when inactivated and simultaneously uncovering the drain hole and opening the valve when activated.
Claim 2
Dependent Claim
94 words
A drainage system comprising a check or coupling valve attachable to a vehicular sump, said valve seated on a valve seat, a length of tubing attached at one end to the outlet side of the valve seat, a rotatable drain plug movably secured to the other end of said tubing, said other end of said tubing defining a drain hole, and a cable interconnecting said valve and plug through said tube, said plug closing said drain hole in the tubing when inactivated and simultaneously uncovering the drain hole and opening the valve when activated.
Claim 3
Dependent Claim
9 words
The system of claim 1 connected to a crankcase.
Claim 4
Dependent Claim
9 words
The system of claim 1 connected to a radiator.
Claim 5
Dependent Claim
10 words
The system of claim 1 connected to a transmission housing.
Claim 6
Dependent Claim
24 words
The system of claim 1 wherein a vertical groove is contained in the upper portion of the coupling between said sump and said valve.
References Cited (Backward Citations)
US193231A
Cited
US3200842A
Cited
US1233482A
Cited
US1557390A
Cited
US1626089A
Cited
US2085876A
Cited
US2301821A
Cited
US3103947A
Cited
US3387621A
Cited
US3537679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |