US3662820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiator overflow apparatus
Assignee: Individual
•
Filing: 1970-02-18
•
Granted: 1972-05-16
•
Expires: 1990-02-18
Abstract
Abstract An apparatus for allowing excess radiator fluid to overflow without loss of fluid. An overflow tank is connected to an overflow tube in the top of the radiator. The exit tube of the overflow tank is connected to the radiator hose and a valve is provided which prevents fluid from flowing into the overflow tank from the radiator hose. A pump is provided within the overflow tank to pump the fluid held by the tank into the radiator hose. The pump is battery powered and may be energized by automatic or manual means.
Inventors
- 👤 Bob N Myer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:01
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/14; F01P11/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
195 words
The combination of: an engine radiator having a bottom outlet tube, a top inlet tube, and an overflow outlet tube; a first hose means connecting said bottom outlet tube with an engine to be cooled; a second hose connecting said inlet tube with said engine; an overflow tank having a top inlet tube connected to said overflow outlet tube, said tank having an outlet tube; an electrical pump positioned within said tank and operable to pump water out said tank outlet tube, said pump having terminals connected to a battery in series with a manual switch; a third hOse connecting said tank outlet tube with said first hose means; and, a float mounted on a pivoting arm, said arm being pivotably hinged to the inside wall of said tank, a first electrical contact being mounted on said arm, a second electrical contact being mounted to said inside wall, said first and second contacts and said arm being arranged in such a manner that said first contact touches said second contact only when said arm is in its most upwardly position, said first and second contacts being connected in series between said battery and said tank.
Claim 2
Dependent Claim
195 words
The combination of: an engine radiator having a bottom outlet tube, a top inlet tube, and an overflow outlet tube; a first hose means connecting said bottom outlet tube with an engine to be cooled; a second hose connecting said inlet tube with said engine; an overflow tank having a top inlet tube connected to said overflow outlet tube, said tank having an outlet tube; an electrical pump positioned within said tank and operable to pump water out said tank outlet tube, said pump having terminals connected to a battery in series with a manual switch; a third hOse connecting said tank outlet tube with said first hose means; and, a float mounted on a pivoting arm, said arm being pivotably hinged to the inside wall of said tank, a first electrical contact being mounted on said arm, a second electrical contact being mounted to said inside wall, said first and second contacts and said arm being arranged in such a manner that said first contact touches said second contact only when said arm is in its most upwardly position, said first and second contacts being connected in series between said battery and said tank.
Claim 3
Dependent Claim
31 words
The combination of claim 1 additionally comprising a fluid valve being connected between said tank and said first hose means allowing fluid flow from said tank to said first hose means.
References Cited (Backward Citations)
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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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |