U.S. patent application number 11/446290 was filed with the patent office on 2007-12-06 for slip-on ferrule assembly for a billiard cue.
Invention is credited to Jung-Shih Chang.
Application Number | 20070281795 11/446290 |
Document ID | / |
Family ID | 38790957 |
Filed Date | 2007-12-06 |
United States Patent
Application |
20070281795 |
Kind Code |
A1 |
Chang; Jung-Shih |
December 6, 2007 |
Slip-on ferrule assembly for a billiard cue
Abstract
A slip-on ferrule assembly for billiard cues includes a ferrule
having a side wall and an end wall. The side wall has an outer
surface and an inner surface. The end wall has an outer surface and
an inner surface. The inner surfaces of the side wall and the end
wall define a chamber in the ferrule. A tip is mounted on the outer
surface of the end wall of the ferrule. A tenon is provided on one
end of a conventional cue and inserted into the chamber of the
ferrule. Means for tightly securing the ferrule to the tenon is
fitted between the ferrule and the tenon.
Inventors: |
Chang; Jung-Shih; (Taichung
Hsien, TW) |
Correspondence
Address: |
BROWDY AND NEIMARK, P.L.L.C.;624 NINTH STREET, NW
SUITE 300
WASHINGTON
DC
20001-5303
US
|
Family ID: |
38790957 |
Appl. No.: |
11/446290 |
Filed: |
June 5, 2006 |
Current U.S.
Class: |
473/49 |
Current CPC
Class: |
A63D 15/12 20130101 |
Class at
Publication: |
473/49 |
International
Class: |
A63D 15/12 20060101
A63D015/12 |
Claims
1. A slip-on ferrule assembly for a billiard cue comprising: a
ferrule having a unitary elongated body made of substantially rigid
material, said body defining a side wall, an end wall, said
sidewall having an outer surface and an inner surface, said end
wall having an outer surface and an inner surface, and a chamber
defined by said inner surfaces of said side wall and said end wall,
a tip mounted on said outer surface of said end wall of said
ferrule, a tenon provided on one end of said billiard cue and
inserted into said chamber of said ferrule, and means for tightly
securing said ferrule to said tenon.
2. The assembly according to claim 1, wherein said means includes
an elastic layer cohered on the surface of said tenon.
3. The assembly according to claim 1, wherein said elastic layer is
made of plastic materials.
4. The assembly according to claim 1, wherein said tenon has a side
surface and an upper surface.
5. The assembly according to claim 4, wherein said means includes
an elastic layer cohered on said side surface of said tenon.
6. The assembly according to claim 4, said means includes an
elastic layer cohered on said side surface and said upper surface
of said tenon.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] This invention relates generally to billiard cues, and more
particularly to a slip-on ferrule assembly for a billiard cue.
[0003] 2. Description of the Related Art
[0004] For enabling a casual player to play with pool hall cues
without the need to repair the cushion or play with a poor tip,
U.S. Pat. No. 6,890,264 discloses a device having a ferrule with a
chamber to removably be attached to the shaft's tip of a
conventional billiard cue and an o-ring which is mounted in a
groove on the shaft of the conventional billiard cue to provide a
friction fit.
[0005] Such a design disclosed on the patent mentioned above has a
disadvantage that only the portion having the o-ring of the shaft
can be attached tightly to the ferrule, in other words, there still
is spaces between the removable ferrule and the shaft of the
billiard cue, so that the ferrule will be swayed when hitting the
cue ball and the result is that the player will get a poor control
to the cue ball.
[0006] Therefore there is a continuing need for a removable ferrule
that can be tightly secured to the shaft of a billiard cue.
BRIEF SUMMARY OF THE INVENTION
[0007] The invention is a slip-on ferrule assembly that can provide
a ferrule thereof to be easily and tightly attached to a
conventional billiard cue. The assembly includes a ferrule which
has a unitary elongated body made of substantially rigid material.
The ferrule has a side wall, an end wall, the side wall has an
outer surface and an inner surface and the end wall has an outer
surface and an inner surface. The inner surfaces of the sidewall
and the end wall define a chamber in the ferrule.
[0008] The assembly also includes a tip which is mounted on the
outer surface of the end wall of the ferrule. The assembly still
includes a tenon which is provided on one end of a conventional
cue. In assembly, the tenon is inserted into the chamber of the
ferrule. The assembly further includes means which is fitted
between the ferrule and the tenon for tightly securing the ferrule
to the tenon.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is a side view illustrating a preferred embodiment
according to the present invention;
[0010] FIG. 2 is a section view along the line 2-2 of FIG. 1;
[0011] FIG. 3 is an exploded longitudinal sectional view of the
embodiment shown in FIG. 2; and
[0012] FIG. 4 is a section view along the line 4-4 of FIG. 1.
DETAILED DESCRIPTION OF THE INVENTION
[0013] Referring now to the drawings, a wood billiard cue is shown
generally at 10 comprising an elongated shaft 12 that is provided
at its one end with a cylindrical tenon 14. A ferrule 20 is
attached to the tenon 14.
[0014] The ferrule 20 is of a unitary elongated body made of
substantially rigid material and defining a side wall 22 and an end
wall 24. The side wall 22 has an outer surface 26 and an inner
surface 28. The end wall 24 has an outer surface 30 and an inner
surface 32. Defined by the inner surfaces of the sidewall 22 and
the end wall 24 is a chamber 40 having an opening 42 at one end
thereof. In assembly, the tenon 14 is inserted into the chamber 40
from the opening 42.
[0015] A tip 50 is mounted on the outer'surface 30 of the end wall
24. Means for tightly secure the ferrule to the tenon of the
preferred embodiment is an elastic layer 60 made of plastic
materials. The elastic layer 60 has a predetermined thickness and
is cohered on the side surface 16 and the upper surface 18 of the
tenon 14. It must be mentioned herein that the elastic layer 60 can
be only cohered on the side surface 18 of the tenon 14. For having
a better performance, the chamber 40 is designed to have an inner
diameter being smaller than the total outer diameter of the tenon
14 and the elastic layer 60 cohered thereon.
[0016] As such a design disclosed above, for having the elastic
layer 60 fitted between the ferrule 20 and the tenon 14, the
ferrule 20 can be tightly secured to the tenon 14 and easily
removed therefrom.
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