US4524734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for engine prelubrication
Assignee: Topline Automotive Engineering Inc
•
Filing: 1984-02-21
•
Granted: 1985-06-25
•
Expires: 2004-02-21
Abstract
Abstract Apparatus and method for prelubricating newly built, overhauled or rebuilt, and repaired engines including a relatively compact and lightweight pressurized vessel containing a predetermined volume of a light grade prelubricant which may, preferably, be of a specialized or proprietary formulation. The vessel is pressurized with carbon dioxide which serves as the propellant to force the lubricant through an adjustable metering valve on the vessel, an interconnecting hose and, in turn, into an engine oil port wherein the pressurized prelubricant is distributed through existing engine oil passageways, channels, and galleys.
Inventors
- 👤 Thomas J. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:58
CPC Classifications
F; F16; F16N; F16N21/00; F16N21/04; F01; F01M; F01M11/00; F01M11/04; F01M5/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
88 words
Apparatus for prelubricating engines including a portable pressure containment vessel having a valve therein; a premeasured volume of prelubricant of predetermined formulation in the vessel; a compressible propellant in the vessel, the quantity of said propellant defining a minimum initial vessel pressure; valve actuator means; means for attaching the actuator means to the vessel in air-tight relationship to the valve means; hose means adapted to interconnect the valve actuator means and an engine requiring prelubrication whereby the prelubricant is discharged throughout an engine upon opening the actuator means.
Claim 2
Dependent Claim
88 words
Apparatus for prelubricating engines including a portable pressure containment vessel having a valve therein; a premeasured volume of prelubricant of predetermined formulation in the vessel; a compressible propellant in the vessel, the quantity of said propellant defining a minimum initial vessel pressure; valve actuator means; means for attaching the actuator means to the vessel in air-tight relationship to the valve means; hose means adapted to interconnect the valve actuator means and an engine requiring prelubrication whereby the prelubricant is discharged throughout an engine upon opening the actuator means.
Claim 3
Dependent Claim
103 words
Lightweight portable apparatus for prelubricating engines including a portable pressure containment can having a valve therein; between about 5 and about 50 ounces of prelubricant in the can, the prelubricant having a predetermined formulation; propellant in the can sufficient to discharge the prelubricant from the can and to define a minimum initial can pressure; valve actuator means; means for attaching the actuator means to the can in air-tight relationship to the valve means; hose means adapted to interconnect the valve actuator means and an engine requiring prelubrication whereby the entire prelubricant contents of the can may be discharged to fully prelubricate an engine.
Claim 4
Dependent Claim
103 words
Lightweight portable apparatus for prelubricating engines including a portable pressure containment can having a valve therein; between about 5 and about 50 ounces of prelubricant in the can, the prelubricant having a predetermined formulation; propellant in the can sufficient to discharge the prelubricant from the can and to define a minimum initial can pressure; valve actuator means; means for attaching the actuator means to the can in air-tight relationship to the valve means; hose means adapted to interconnect the valve actuator means and an engine requiring prelubrication whereby the entire prelubricant contents of the can may be discharged to fully prelubricate an engine.
Claim 5
Dependent Claim
100 words
Lightweight portable apparatus for prelubricating engines including a disposable pressure containment can having a valve therein; between about 5 and about 50 ounces of prelubricant in the can, the prelubricant having a predetermined formulation; propellant in the can sufficient to discharge the prelubricant from the can and to define a minimum initial can pressure; valve actuator means; means for detachably mounting the actuator means to the can in air-tight relationship to the valve means; hose means adapted to interconnect the valve actuator means and an engine requiring prelubrication whereby a discharged disposable prelubricant can may be replaced following engine prelubrication.
Claim 6
Dependent Claim
100 words
Lightweight portable apparatus for prelubricating engines including a disposable pressure containment can having a valve therein; between about 5 and about 50 ounces of prelubricant in the can, the prelubricant having a predetermined formulation; propellant in the can sufficient to discharge the prelubricant from the can and to define a minimum initial can pressure; valve actuator means; means for detachably mounting the actuator means to the can in air-tight relationship to the valve means; hose means adapted to interconnect the valve actuator means and an engine requiring prelubrication whereby a discharged disposable prelubricant can may be replaced following engine prelubrication.
Claim 7
Dependent Claim
17 words
The engine prelubricating apparatus of claim 3 wherein said minimum initial can pressure is about 100 psi.
Claim 8
Dependent Claim
99 words
An inexpensive method for prelubricating new, rebuilt and remanufactured, and repaired engines including the steps of filling a lightweight portable pressure can having an actuable valve therein with a premeasured volume of prelubricant, the prelubricant having a predetermined formulation; charging the pressure can with a compressible propellant to a minimum initial can pressure; attaching an interconnecting hose and valve actuator to the pressure can; attaching the other end of the interconnecting hose to an lubrication inlet on the engine to be prelubricated; opening the valve actuator thereby permitting the contents of the can to enter and lubricate the engine.
Claim 9
Dependent Claim
99 words
An inexpensive method for prelubricating new, rebuilt and remanufactured, and repaired engines including the steps of filling a lightweight portable pressure can having an actuable valve therein with a premeasured volume of prelubricant, the prelubricant having a predetermined formulation; charging the pressure can with a compressible propellant to a minimum initial can pressure; attaching an interconnecting hose and valve actuator to the pressure can; attaching the other end of the interconnecting hose to an lubrication inlet on the engine to be prelubricated; opening the valve actuator thereby permitting the contents of the can to enter and lubricate the engine.
References Cited (Backward Citations)
US3556070A
Cited
US3722623A
Cited
US4061204A
Cited
US4094293A
Cited
US4112910A
Cited
US4168693A
Cited
US4359140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-24 | 1988-12-24 | 1989-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-24 | 1992-12-24 | 1993-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-24 | 1996-12-24 | 1997-06-25 | $7700.00 | Window Closed / Lapsed |