Electrical connectors – Having spark or glow plug cover – With distinct securing means
Reexamination Certificate
2000-03-16
2001-04-03
Abrams, Neil (Department: 2839)
Electrical connectors
Having spark or glow plug cover
With distinct securing means
C439S784000
Reexamination Certificate
active
06210183
ABSTRACT:
BACKGROUND OF THE INVENTION
(a) Field of the Invention
This invention relates to spark plugs and spark plug boots and more particularly, but not by way of limitation, to an improved spark plug and spark plug boot combination for improved engine performance and ease in installation and removal of the plug and removal of the boot from the plug.
(b) Discussion of Prior Art
Today's vehicles have larger and larger engines with various engine accessories mounted on top and on the sides of the engines. This situation leaves little room for installing spark plugs in the engine block along with attaching spark plug boots with spark plug wires to the end of the sparks spark plugs. One vehicle manufacture provide “no” room for changing out spark plugs and the engine literally has to be removed to the engine mounts in order to change spark plugs.
There is a wide variety of spark plugs on today's market for different models and manufactures of vehicle engines. Also, there are different designs of spark plug boots and spark wire terminals for connecting spark plug wires to the spark plugs. None of the prior art spark plug manufactures have addressed a problem of a spark plug boot, over a period of time, sticking to the sides of a spark plug making it difficult to remove the boot from the plug. Further, spark plug manufactures have not addressed a problem of threading a spark plug boot on a spark plug when there is little room for installation next to the engine.
The subject invention addresses the problem of limited working space when working on a vehicle engine and installing spark plug boots on spark plugs and removing spark plug boots from the plugs.
SUMMARY OF THE INVENTION
In view of the foregoing, it is a primary object of the subject invention to provide an improved spark plug and spark plug boot combination used with an internal combustion engine for overall improved engine performance.
Another object of the invention is the new spark plug and spark plug boot combination provides for ease in snugly securing the spark plug boot to the spark plug when space is limited next to the engine.
Still another object of the plug and boot combination is to provide for ease in removing the spark plug boot from the spark plug which heretofore was difficult to remove because of the boot sticking to the sides of the plug.
A further object of the invention is the plug and boot combination reduces “flash over” and static electricity with improved engine performance and fuel economy.
Yet another object of the invention is the spark plug boot includes a plug wire connector with plug wire swivel which allows a spark plug wire to swivel on the plug wire connector for ease in attaching the boot to the spark plug when working in tight conditions. The plug wire connector also includes quick release snap-in connector ribs for releasing the plug wire connector from an end of the spark plug boot.
The spark plug and spark plug boot combination includes a spark plug having external threads formed in a ceramic housing of the plug. The boot includes internal threads formed inside a boot housing for releasable engagement of the external threads on the ceramic body of the spark plug. The boot also includes a spark plug wire connector having “snap-in” connector ribs. The connector ribs are used for releasable receipt in one end of the boot housing. The connector has a plug wire swivel in a connector housing which allows a spark plug wire to be pivoted on the spark plug wire connector when the boot is attached to the spark plug or removed from the spark plug. Along the exterior sides of the boot are longitudinal splines which are used for gripping the boot during installation and removal from the spark plug.
These and other objects of the present invention will become apparent to those familiar with spark plugs, spark plug boots and spark plug wire terminals used with internal combustion engines when reviewing the following detailed description, showing novel construction, combination, and elements as herein described, and more particularly defined by the claims, it being understood that changes in the embodiments to the herein disclosed invention are meant to be included as coming within the scope of the claims, except insofar as they may be precluded by the prior art.
REFERENCES:
patent: 3128139 (1964-04-01), Estes
Abrams Neil
Crabtree Edwin H.
Margolis Donald W.
Nasri Javaid
Pizarro Ramon L.
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