Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Reexamination Certificate
2000-01-03
2001-12-04
Cuda-Rosenbaum, I (Department: 3726)
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
C029S890031, C029S402020
Reexamination Certificate
active
06324757
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a method and composition for repairing cooling systems of combustible engines and the like and particularly for sealing cracks in such devices as heating cores, freeze plugs, radiators, cracked or warped heads and blown head gaskets. The most common approach generally taken to repair such cracks is to utilize solid particles carried by a liquid for conveying the particles to the cracks. In this conventional approach the solid particles act as plugs for sealing the cracks. A difficulty with this conventional approach is that it is applicable only to large cracks with varying effectiveness but is not effective with respect to very small cracks which are too small for the particles to enter. Another disadvantage with such conventional techniques is that such techniques operate too slowly.
A variation of the above-conventional techniques which have been considered is to completely omit the solid particles as the sealant and instead to use as the sealant a pure liquid. In this variation the liquid flows into all cracks and openings whether large or minute. The components of the liquid are such that upon the application of heat, such as by starting the engine, the liquid solidifies and thereby is intended to close or seal the cracks.
OBJECTS OF THE INVENTION
An object of this invention is to provide an improved sealing system which has the advantages but not the drawbacks of the above systems.
A further object of this invention is to provide such a sealing system which provides sufficient strength and durability to effectively withstand pressure that might be applied.
A still further object of this invention is to provide such a system which is characterized by its quickness in sealing cracks regardless of the size of the cracks.
SUMMARY OF THE INVENTION
In accordance with one embodiment of this invention the sealing system includes a liquid carrier for solid particles. Unlike the conventional system, however, the liquid carrier itself is capable of solidification. Thus, the invention utilizes the advantages of the prior techniques by initially closing large cracks and openings with the solid particles and utilizing the liquid to fill the tiny cracks and to complete the filling of the large cracks upon solidification of the liquid.
In another embodiment of this invention, the sealant may comprise a mixture of sodium silicate, potassium silicate, a glycol, and particulates, with optional coloring agents and preservatives.
Another embodiment of this invention comprises a method of repairing a coolant system associated with an engine for a vehicle including disconnecting a gooseneck connected to said engine and removing from said engine its thermostat; disconnecting a bottom radiator hose connected to said engine and flushing said engine with water; reconnecting said bottom radiator hose and reconnecting said gooseneck; refilling said engine's radiator with an antifreeze solution; opening a drain valve on said radiator and allowing a predetermined amount of coolant to drain out of said engine corresponding to a volume of a treatment composition to be added, said treatment composition comprising an aqueous silicate mixture comprising 50-80% sodium silicate, based on a total amount of silicates in said mixture, and 50-20% potassium silicate, based on said total amount of silicates in said mixture, said total amount of silicates comprising about 40-50% of said mixture, a glycol in an amount of at least 10% by volume of the composition and the balance being water; starting said engine when said engine is cold, and turning on said engine's heater; adding said composition to said radiator of said engine while said engine is cold and idling; running said engine until said composition causes leakage and/or vapor in said engine's exhaust stream is substantially stopped; and stopping said engine and allowing said engine to cool.
REFERENCES:
patent: 2129459 (1938-09-01), Benoit
patent: 2315321 (1943-03-01), Evans et al.
patent: 2729568 (1956-01-01), Metcalf
patent: 2885296 (1959-05-01), Welden
patent: 3042620 (1962-07-01), Dry et al.
patent: 3417018 (1968-12-01), Burns
patent: 3433655 (1969-03-01), Nugent
patent: 3644208 (1972-02-01), Krueger
patent: 3740337 (1973-06-01), Sommers
patent: 3984507 (1976-10-01), Miller
patent: 4524159 (1985-06-01), Barber
patent: 4708195 (1987-11-01), Barks
patent: 4713114 (1987-12-01), Smith
patent: 4765629 (1988-08-01), Barks
patent: 4765630 (1988-08-01), Barks
patent: 4973360 (1990-11-01), Satas
patent: 5282895 (1994-02-01), Phillips
patent: 5391224 (1995-02-01), Pasuit et al.
patent: 6159276 (2000-12-01), Barks
patent: 62227968 (1987-10-01), None
Cuda-Rosenbaum I
Glantz Douglas G.
SCIX, LLC
LandOfFree
Method of repairing an engine cooling system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of repairing an engine cooling system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of repairing an engine cooling system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2590793