Patent US5018491A successfully refreshed from Google Patents.
US5018491A
Expired / Lapsed
US
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Auxiliary oil pumping and draining system
Assignee: Individual
•
Filing: 1989-05-08
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Granted: 1991-05-28
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Expires: 2009-05-08
Abstract
Abstract An auxiliary electrical oil pumping and draining system for internal-combustion engines operating in series with a mechanical oil pump. The system includes an adapter which is fitted in place of the standard oil filter, a first conduit which conducts oil from the adapter to an electrical oil pump, a second conduit which conducts oil from the electrical oil pump to a remote fitting for a standard oil filter, a third conduit which conducts oil from the remote fitting back to the adapter, and an electrical control for operating the pump, which control ensures that specified oil pressure is maintained in the system when the ignition key is turned on, and for a short period of time when the ignition key is turned off.
Inventors
- 👤 Robert D. Fish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:44
CPC Classifications
F; F01; F01M; F01M1/00; F01M1/18; F01M1/20; F01M1/12; F01M11/00; F01M11/03; F01M11/04; F01M11/0458; F01M5/00; F01M5/02; F01M5/025
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
131 words
In combination with an internal combustion engine having a standard oil filter fitting and an electrical power source, an auxiliary oil pumping and draining system comprising: an adapter which is sized and dimensioned to attach to the standard oil filter fitting in place of a standard oil filter; an electrical oil pump in liquid communication with said adapter; a first means for coupling said adapter with said electrical oil pump; a second oil filter fitting which is sized and dimensioned to attach to the standard oil filter; a second means for coupling said electrical oil pump with said remote oil filter fitting; a third means for coupling said remote oil filter fitting with said adapter; an electrical control means for energizing said electrical pump with electricity from said electrical power source.
Claim 2
Dependent Claim
131 words
In combination with an internal combustion engine having a standard oil filter fitting and an electrical power source, an auxiliary oil pumping and draining system comprising: an adapter which is sized and dimensioned to attach to the standard oil filter fitting in place of a standard oil filter; an electrical oil pump in liquid communication with said adapter; a first means for coupling said adapter with said electrical oil pump; a second oil filter fitting which is sized and dimensioned to attach to the standard oil filter; a second means for coupling said electrical oil pump with said remote oil filter fitting; a third means for coupling said remote oil filter fitting with said adapter; an electrical control means for energizing said electrical pump with electricity from said electrical power source.
Claim 3
Dependent Claim
20 words
The system according to claim 1, in which the electrical oil pump operates in series with a mechanical oil pump.
Claim 4
Dependent Claim
25 words
The system according to claim 2, further comprising a fourth means for removably coupling said remote oil filter fitting to an external oil disposal container.
Claim 5
Dependent Claim
24 words
The system according to claim 1, wherein the means for energizing said electrical pump comprises a means for sensing voltage in an ignition wire.
Claim 6
Dependent Claim
18 words
The system according to claim 1, wherein the means for energizing said electrical pump comprises a pressure sensor.
Claim 7
Dependent Claim
18 words
The system according to claim 1, wherein the means for energizing said electrical pump comprises a test switch.
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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) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |