Metal working – Means to assemble or disassemble – Piston ring inserter or remover
Reexamination Certificate
2000-12-07
2002-08-06
Hail, III, Joseph J. (Department: 3723)
Metal working
Means to assemble or disassemble
Piston ring inserter or remover
C029S224000, C029S269000
Reexamination Certificate
active
06427301
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a piston ring compressor tool system and more particularly pertains to a safely and conveniently compressing piston rings for easy piston placement into a bore.
2. Description of the Prior Art
The use of known devices and apparatuses for ring compression is known in the prior art. More specifically, known devices and apparatuses for ring compression previously devised and utilized for the purpose of for compressing rings through known methods and apparatuses are known to consist basically of familiar, expected, and obvious structural configurations, notwithstanding the myriad of designs encompassed by the crowded prior art which has been developed for the fulfillment of countless objectives and requirements.
By way of example, U.S. Pat. No. 3,767,507 to Stahlecker issued Oct. 23, 1973. This patent disclosed an apparatus for the manufacture of work pieces constructed as cup-like, upwardly or downwardly tapering containers. U.S. Pat. No. 5,307,714 to Munendlein et al. discloses a device for holding and operating a facing head.
While these devices fulfill their respective, particular objectives and requirements, the aforementioned patents do not describe a piston ring compressor tool system that allows safely and conveniently compressing piston rings for easy piston placement into a bore.
In this respect, the piston ring compressor tool system according to the present invention substantially departs from the conventional concepts and designs of the prior art, and in doing so provides an apparatus primarily developed for the purpose of safely and conveniently compressing piston rings for easy piston placement into a bore.
Therefore, it can be appreciated that there exists a continuing need for a new and improved piston ring compressor tool system which can be used for safely and conveniently compressing piston rings for easy piston placement into a bore. In this regard, the present invention substantially fulfills this need.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of known devices and apparatuses now present in the prior art, the present invention provides an improved piston ring compressor tool system. As such, the general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new and improved piston ring compressor tool system and method which has all the advantages of the prior art and none of the disadvantages.
To attain this, the present invention essentially comprises a piston ring compressor tool system for safely and conveniently compressing piston rings for easy piston placement into a bore. The system comprises, in combination, several components. Firstly, there is a compression skirt which comprises a strip of flexible form-retaining material. The skirt has an interior surface and an exterior surface and peripheral edges formed there between. The peripheral edges include an upper edge, a lower edge and two side edges. The strip is rolled into a hollow, generally tapered, cylindrical tubular form. The tube has overlapping side edges and thereby has an internal edge and an external edge. The overlapping configuration allows for expansion and contraction of the overall radius of the compression skirt during operation and use. The strip is further configured at its upper extent in a shape of a generally outwardly flared upper frustroconical funnel at an angle of between about 10 and 15 degrees. The funnel forms a planar inlet within the interior of the upper edge. The inlet is for receiving a piston and ring assembly. The strip further forms a planar cylindrically shaped outlet at its lower extent within the interior of the lower edge. The outlet is parallel to the plane of the inlet, and is for discharging the piston and ring assembly into a bore of an engine. The compression skirt also has an upper horizontal portion, a middle horizontal portion and a lower horizontal portion. The compression skirt has a generally outwardly curved upper horizontal portion. It also has a lower horizontal portion which is generally plumb to the plane of the opening of the lower edge. The middle horizontal area is a transition area between the radial outward curve of the upper horizontal portion and the generally plumb surface of the lower horizontal portion. Next provided is a compressing ring assembly which is comprised of a flat strip of rigid form-retaining material. The ring device comprises a generally circular configuration. The ring device comprises a compression strap and a compressor mechanism. The compression strap has an upper edge, a lower edge and two side edges. It also comprises an internal surface, an external surface and an edge there between. The surface of the compression strap has a regular surface with parallel slots for receiving the traction from the compressor mechanism. The compressor mechanism in the form of a bolt with threads has a rotatable threaded coupler for pulling on and shortening the circumference of the compression strap. The threads of the rotatable compressor mechanism are configured to mate to, and be in contact with, the slots of the compression strap thereby enabling the compressor mechanism to shorten and lengthen the overall circumference of the compression strap by rotatably shortening and lengthening the circumference of the skirt. Lastly provided is an attachment element, preferably a weld. The attachment weld couples the compressing ring assembly to the outside middle horizontal portion of the compression skirt. This fixation allows the compressing ring assembly to shorten and lengthen the internal radius of the compression skirt by shortening and lengthening the circumference of the compressing ring assembly.
There has thus been outlined, rather broadly, the more important features of the invention in order that the detailed description thereof that follows may be better understood and in order that the present contribution to the art may be better appreciated. There are, of course, additional features of the invention that will be described hereinafter and which will form the subject matter of the claims attached.
In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of descriptions and should not be regarded as limiting.
As such, those skilled in the art will appreciate that the conception, upon which this disclosure is based, may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention.
It is therefore an object of the present invention to provide a new and improved piston ring compressor tool system which has all of the advantages of the prior art known devices and apparatuses and none of the disadvantages.
It is another object of the present invention to provide a new and improved piston ring compressor tool system which may be easily and efficiently manufactured and marketed.
It is further object of the present invention to provide a new and improved piston ring compressor tool system which is of durable and reliable constructions.
An even further object of the present invention is to provide a new and improved piston ring compressor tool system which is susceptible of a low cost of manufacture with regard to both materials and labor, and which accordingly is then susceptible of low prices of sale to the consuming public, thereby
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