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US20090048032A1 - Shaft of cue sticks - Google Patents

Shaft of cue sticks Download PDF

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Publication number
US20090048032A1
US20090048032A1 US11/871,010 US87101007A US2009048032A1 US 20090048032 A1 US20090048032 A1 US 20090048032A1 US 87101007 A US87101007 A US 87101007A US 2009048032 A1 US2009048032 A1 US 2009048032A1
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US
United States
Prior art keywords
shaft
section
wood strips
core tube
wood
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/871,010
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English (en)
Inventor
Jung-Shih Chang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20090048032A1 publication Critical patent/US20090048032A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63D—BOWLING GAMES, e.g. SKITTLES, BOCCE OR BOWLS; INSTALLATIONS THEREFOR; BAGATELLE OR SIMILAR GAMES; BILLIARDS
    • A63D15/00—Billiards, e.g. carom billiards or pocket billiards; Billiard tables
    • A63D15/08—Cues

Definitions

  • the present invention relates to cue sticks for playing billiard or pool and, more particularly, to an improved shaft of a cue stick.
  • a prior art billiard cue disclosed in U.S. Pat. No. 1,702,292 has a body portion formed of a plurality of longitudinal wood sections secured together and a hollow metallic reinforcing core received within the body and extending throughout the length of the body.
  • U.S. Pat. No. 5,725,437 discloses an improved billiard cue having a ferrule with a bore, and a wood shaft with a tenon inserting into the bore in such a way that a hollow portion is formed in the impact end of the shaft to absorb part of the impact forces imposing thereon.
  • the inward buckling of the impact end of the shaft on off center hits is decreased so that the cue ball hit can follow a path of movement that is parallel to the line of stroke of the cue.
  • this improved cue provides a poor radial consistency.
  • radial consistency is that when a player uses each of contact points defined by the same radius of the hitting surface of a cue tip mounted on a shaft to hit a cue ball in the same way, such as the same hitting angle, the same hitting force, etc., the cue ball hit, in each hitting, should have the same response.
  • U.S. Pat. No. 6,869,370 suggests an approach to improve “radial consistency” of a wood shaft of a billiard cue.
  • the approach is to provide a wood shaft laminated by a central elongated wood member and a plurality of surrounding wood elongated members.
  • a wood elongated central member such a laminated wood shaft could have a center of gravity located on the axis thereof.
  • “radial consistency” of the laminated wood can be improved.
  • the present invention discloses an improved shaft of a cue stick which comprises an elongated body tapering from a first end to a second end.
  • the body is laminated of a plurality of wood strips.
  • Each of the wood strips in cross-section thereof includes a sector section having an arcuate outer surface and an arc inner notch.
  • the wood strips are laminated in such a way that after laminating, the arcuate outer surfaces thereof form an outer surface of the body and the inner notches thereof define an axial hole of the body.
  • the shaft further comprises a circular core tube made of materials having a larger rigidity than wood materials. The tube is shorter than the axial hole of the body and firmly received therein in such a way that the body forms a front hollow section extending a predetermined length along the axis thereof from the first end thereof to the second end thereof.
  • FIG. 1 is a side elevational view of a cue stick with a first preferred embodiment of a shaft constructed in accordance of the teachings of the present invention
  • FIG. 2 is a cross sectional view generally taken along line 2 - 2 in FIG. 1 ;
  • FIG. 3 is a cross sectional view generally taken along line 3 - 3 in FIG. 2 ;
  • FIG. 4 is a cross sectional view generally taken along line 4 - 4 in FIG. 2 ;
  • FIG. 5 is similar to FIG. 4 but showing a cross sectional view of a second preferred embodiment of a shaft constructed in accordance of the teachings of the present invention.
  • FIG. 6 is similar to FIG. 4 but showing a cross sectional view of a third preferred embodiment of a shaft constructed in accordance of the teachings of the present invention.
  • FIG. 1 is a side elevational view of a cue stick 10 including a shaft 12 constructed in accordance of the teachings of the present invention, a butt 14 coaxially threadingly joined to shaft 12 , a butt pad 16 attached to a free end of butt 14 .
  • Body 18 is about 740 mm in length and laminated of a plurality of elongated wood strips 30 .
  • body 18 is laminated of four elongated wood strips 30 .
  • Each of elongated wood strips 30 in cross-section has a ninety degree section with an arcuate outer surface 32 and an inner notch 34 (as shown in FIG. 3 ).
  • Elongated wood strips 30 are laminated in such a way that after laminating, arcuate outer surfaces 32 form an outer surface of body 18 and inner notches 34 defines an axial hole 36 of body 18 .
  • the diameter of first end 22 of body 18 is designed in the range of 12.5 nm to 13 mm.
  • the diameter of second end 24 of body is about 20 mm.
  • the diameter of axial hole is about 6 mm.
  • body 18 can be assembled by six or eight elongated wood strips 30 ′, 30 ′′ and each of elongated wooden members 30 ′, 30 ′′ in cross-section has a ninety or forty-five degree section (as shown in FIGS. 5 and 6 ).
  • Core tube 20 is made of materials having a larger rigidity than wood, such as fiber-reinforced plastics, metal, etc. and having a shorter length than axial hole 36 of body 18 .
  • core tube 20 should be sized in such a way that it is about 380 mm in length, 6 mm in outer diameter, and 4 mm in inner diameter.
  • core tube 20 is firmly received in axial hole 36 of body 18 in such a way that body 18 forms a front hollow section 40 extending a predetermined length along the axis thereof from First end 22 thereof to second end 24 thereof.
  • core tube 20 is received in the center portion of axial hole 36 so that front hollow section 40 is 180 mm in length and in the same time a rear hollow section 42 , 180 mm in length, is defined.
  • a shaft constructed according to the teaching of the present invention has a body laminated of a plurality of elongated wood strips and a rigid core tube having a specific length and received in the center portion of the axial hole of the body, the core tube, when laminated with the wood strips, would work as a rigid compressed center to resist averagely the outer compressing force coming from omnidirection during laminating processes.
  • the center of gravity of the shaft would be exactly located in the axis thereof after laminating processes.
  • the shaft disclosed in the present invention can provide a better “radial consistency”.
  • the impact end of the shaft constructed according to the teaching of the present invention has a minimized inward buckling on off center hits.
  • the cue ball hit by the shaft would follow a path of movement that is parallel to the line of stroke of the shaft.
  • the shaft constructed according to the teaching of the present invention not only has a front hollow section but a rear follow section so that the weight thereof is effectively decreased.

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  • Golf Clubs (AREA)
US11/871,010 2007-08-13 2007-10-11 Shaft of cue sticks Abandoned US20090048032A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2007201271805U CN201132057Y (zh) 2007-08-13 2007-08-13 具芯管的撞球杆
TW200720127180.5 2007-08-13

Publications (1)

Publication Number Publication Date
US20090048032A1 true US20090048032A1 (en) 2009-02-19

Family

ID=40060331

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/871,010 Abandoned US20090048032A1 (en) 2007-08-13 2007-10-11 Shaft of cue sticks

Country Status (2)

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US (1) US20090048032A1 (zh)
CN (1) CN201132057Y (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100048312A1 (en) * 2008-08-21 2010-02-25 Tsai Po-Wen Cue stick
US20130165244A1 (en) * 2011-12-21 2013-06-27 Mark Larson Pool cue
RU2607432C1 (ru) * 2016-03-01 2017-01-10 Александр Федорович Парфенов Бильярдный кий второго поколения
US20220088470A1 (en) * 2020-02-12 2022-03-24 Jonathan James Demet Rocket Launcher Pool Cue Tech

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110870972B (zh) * 2018-08-31 2021-11-09 张荣士 台球杆前肢

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US132054A (en) * 1872-10-08 Improvement in billiard-cues
US951453A (en) * 1909-05-28 1910-03-08 Burroughes & Watts Ltd Billiard-cue.
US1007668A (en) * 1911-04-29 1911-11-07 Joseph Ernest Barrows Cue for billiards and like games.
US1248634A (en) * 1916-05-10 1917-12-04 Andrew D Du Bose Billiard-cue.
US1702292A (en) * 1925-09-03 1929-02-19 Barbarite Corp Billiard cue
US5725437A (en) * 1994-09-29 1998-03-10 Lorraine C. McCarty Billiard/pool cue
US20020132677A1 (en) * 2001-03-14 2002-09-19 Jung-Shih Chang Billiard cue having an improved shaft
US20030153393A1 (en) * 2002-02-08 2003-08-14 Jung-Shih Chang Billiard cue
US6869370B2 (en) * 2003-05-08 2005-03-22 Yeghia Davtyan Laminated cue with central elongated member
US20060160633A1 (en) * 2005-01-18 2006-07-20 Steven Tsai Laminated inner structure of wooden billiard cue
US20060205525A1 (en) * 2005-03-10 2006-09-14 Owen Donald W Cue stick and method of making same
US20070123362A1 (en) * 2005-11-30 2007-05-31 Nicola Marino Billiard cue and method for making the same

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US132054A (en) * 1872-10-08 Improvement in billiard-cues
US951453A (en) * 1909-05-28 1910-03-08 Burroughes & Watts Ltd Billiard-cue.
US1007668A (en) * 1911-04-29 1911-11-07 Joseph Ernest Barrows Cue for billiards and like games.
US1248634A (en) * 1916-05-10 1917-12-04 Andrew D Du Bose Billiard-cue.
US1702292A (en) * 1925-09-03 1929-02-19 Barbarite Corp Billiard cue
US5725437A (en) * 1994-09-29 1998-03-10 Lorraine C. McCarty Billiard/pool cue
US6162128A (en) * 1994-09-29 2000-12-19 The Lorraine C. Mccarty Trust Billiard/pool cue
US20020132677A1 (en) * 2001-03-14 2002-09-19 Jung-Shih Chang Billiard cue having an improved shaft
US20030153393A1 (en) * 2002-02-08 2003-08-14 Jung-Shih Chang Billiard cue
US6869370B2 (en) * 2003-05-08 2005-03-22 Yeghia Davtyan Laminated cue with central elongated member
US20060160633A1 (en) * 2005-01-18 2006-07-20 Steven Tsai Laminated inner structure of wooden billiard cue
US20060205525A1 (en) * 2005-03-10 2006-09-14 Owen Donald W Cue stick and method of making same
US20070123362A1 (en) * 2005-11-30 2007-05-31 Nicola Marino Billiard cue and method for making the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100048312A1 (en) * 2008-08-21 2010-02-25 Tsai Po-Wen Cue stick
US7677985B1 (en) * 2008-08-21 2010-03-16 Po-Wen Tsai Cue stick
US20130165244A1 (en) * 2011-12-21 2013-06-27 Mark Larson Pool cue
US8801527B2 (en) * 2011-12-21 2014-08-12 Mark Larson Pool cue
RU2607432C1 (ru) * 2016-03-01 2017-01-10 Александр Федорович Парфенов Бильярдный кий второго поколения
US20220088470A1 (en) * 2020-02-12 2022-03-24 Jonathan James Demet Rocket Launcher Pool Cue Tech

Also Published As

Publication number Publication date
CN201132057Y (zh) 2008-10-15

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Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION