Replaceable cue tip system

Games using tangible projectile – Billiards or pool – Cue

Reexamination Certificate

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Details

C473S044000

Reexamination Certificate

active

06183371

ABSTRACT:

FIELD OF THE INVENTION
My invention relates to a system for reliably mounting cue tips, and more particularly, to a unique, particularized, cooperative design configuration which provides reliable, yet replaceable cue tips for pool or billiard cue sticks.
BACKGROUND
Users of cue sticks have for years been faced with the problem of how to simply yet reliably replace the tip of the cue when it begins to wear to an undesirable extent. Over the years, as reproduceable machine parts and advanced adhesives have become available, various cue replacement systems have been devised which enable the user to maintain use of a favorite cue stick by having a worn out cue tip replaced. Some of the systems known to me have been susceptible to undesirable problems, including inadequate strength in various joints. Often, in current designs, there is a tendency to split the cue stick when the stick is used for a shot where high compressive forces are applied to the tip and cue, such as a during break shot. Other systems are sufficiently complicated that it is difficult to provide the parts inexpensively enough to interest large segments of the market for such devices. As a consequence, there is still an unmet need for improvements over the apparatus and methods which have been used heretofore for replacement of cue tips.
SUMMARY OF THE INVENTION
I have now invented, and disclose herein, a novel configuration for attachment of cue tips to cue sticks. The system is especially adapted for the replaceable attachment of a cue tip to a cue stick of preselected length. A permanently mountable tip mount is first affixed to the distal end of the cue stick. The tip mount has a cue side and a ferrule side, and includes a generally C-shaped central disk portion, having an annular shaped edge portion which forms a cap ring along the periphery of the cue side. The tip mount is also provide with a central mounting shaft extending from the center of the tip mount in the cue side direction for a length L
66
, adapted to fit into a centered borehole in the cue shaft. On the tip side of the tip mount, a ferrule attachment shaft is provided. The ferrule attachment shaft extends from the center of the tip mount in the tip direction for a length L
90
. The ferrule attachment shaft is threaded for receiving a ferrule which has, on the cue end, a centrally located internal thread adapted for threaded engagement with the ferrule attachment shaft. The ferrule is adapted to be securely and releasably affixed to the ferrule attachment shaft of the tip mount. A leather cue tip is adhesively bonded to the tip side of the removable ferrule. Ideally, the tip side of the ferrule also includes a centrally located nipple portion which protrudes outwardly from the tip end of the ferrule, and the tip has a back including a nipple receiving cup defined at the radially outward reaches thereof by a central peripheral edge. Preferably, the nipple includes a flat central land to provide a stable centering force to the cue tip upon impact with a ball.
OBJECTS, ADVANTAGES, AND NOVEL FEATURES
I have now invented, and disclose herein, a novel system for providing replaceable cue tips. My system does not have the drawbacks common to those somewhat similar products heretofore used of which I am aware. Unlike the earlier designs, the components of my system are simple, lightweight, relatively inexpensive and easy to manufacture, and otherwise superior to those designs heretofore used or proposed. In addition, my system provides a significant, additional measure of ease in repeatedly replacing a cue tip.
From the foregoing, it will be apparent to the reader that one important and primary object of the present invention resides in the provision of a novel system for replacement of cue tips.
Other important but more specific objects of the invention reside in the provision of a simple cue tip replacement system as described herein which:
provides a strong cue tip which is highly resistant to shear;
provides apparatus for joining a tip to a cue stick in a manner which does not transmit compressive strain to the cue stick in a fashion which tends to deform or split the cue stick;
can be manufactured in a simple, straightforward manner of strong, resilient, breakage resistant materials; and
in conjunction with the preceding object, have the advantage that they can be quickly and easily serviced to provide a reliable, replaceable cue tip.
Other important objects, features, and additional advantages of my invention will become apparent to the reader from the foregoing and as the ensuing detailed description and discussion proceeds in conjunction with the accompanying drawing.


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patent: 338888 (1886-03-01), Tracy
patent: 583009 (1897-05-01), Cunningham
patent: 803420 (1905-10-01), Koegel
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patent: 2544970 (1951-03-01), Watson
patent: 3226119 (1965-12-01), Foy
patent: 20222 (1905-05-01), None
patent: 573159 (1924-06-01), None
patent: 785662 (1935-08-01), None
patent: 150651 (1920-09-01), None

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