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US5833561A Expired / Lapsed US ⏱️ 0.0 years remaining

Ball bat with tailored flexibility

Assignee: Russell Brands LLC
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Filing: 1997-01-27
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Granted: 1998-11-10
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Expires: 2017-01-27
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Abstract

Abstract The present invention relates to a ball bat with tailored flexibility with a cylindrical handle zone at a first end of the ball bat. The cylindrical handle zone has a knob disposed on a free end thereof. A generally cylindrical hitting zone is at a second end of the ball bat remote from the first end. An essentially frustoconical transition zone is between the handle zone and the hitting zone. The transition zone includes an inboard portion of a first length and an outboard portion of a second length together forming a flex control zone. The flex control zone modifies normal flex characteristics of the ball bat.

Inventors

  • 👤 Thomas Kennedy
  • 👤 Brian Feeney

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 17:41
CPC Classifications
A; A63; A63B; A63B59/00; A63B59/50; A63B2102/00; A63B2102/18; A63B60/00; A63B60/0081

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 288 words
A ball bat with tailored flexibility for use in allowing for improved swing characteristics: a cylindrical handle zone at a first end of the ball bat, the cylindrical handle zone having a knob disposed on a free end thereof, the cylindrical handle zone having a length of about one-third of an overall length of the ball bat; a generally cylindrical hitting zone at a second end of the ball bat remote from the first end, the hitting zone having a length of about one-third of the overall length of the ball bat and essentially equal to the length of the cylindrical handle zone; an essentially frustoconical transition zone between the handle zone and the hitting zone, the transition zone having a length of about one-third of the overall length of the ball bat, the transition zone including a frustoconical region and a flex control region, the frustoconical region being adjacent to the hitting zone, the flex control region being adjacent to the handle zone, the flex control region including an inboard portion of a first length in a frustoconical configuration, the inboard portion having a lower end integral with and having an essentially equal diameter as an upper end of the cylindrical handle zone, the flex control region including an outboard portion of a second length in a frustoconical configuration, the second length being about five times greater than the first length, an upper end of the inboard portion and a lower end of the outboard portion integrally forming an enlarged annular ring, the flex control region modifying normal flex characteristics of the ball bat, the enlarged annular ring having a diameter at a widest portion thereof greater than 2.5 times a diameter of the cylindrical handle zone.
Claim 2
Dependent Claim 288 words
A ball bat with tailored flexibility for use in allowing for improved swing characteristics: a cylindrical handle zone at a first end of the ball bat, the cylindrical handle zone having a knob disposed on a free end thereof, the cylindrical handle zone having a length of about one-third of an overall length of the ball bat; a generally cylindrical hitting zone at a second end of the ball bat remote from the first end, the hitting zone having a length of about one-third of the overall length of the ball bat and essentially equal to the length of the cylindrical handle zone; an essentially frustoconical transition zone between the handle zone and the hitting zone, the transition zone having a length of about one-third of the overall length of the ball bat, the transition zone including a frustoconical region and a flex control region, the frustoconical region being adjacent to the hitting zone, the flex control region being adjacent to the handle zone, the flex control region including an inboard portion of a first length in a frustoconical configuration, the inboard portion having a lower end integral with and having an essentially equal diameter as an upper end of the cylindrical handle zone, the flex control region including an outboard portion of a second length in a frustoconical configuration, the second length being about five times greater than the first length, an upper end of the inboard portion and a lower end of the outboard portion integrally forming an enlarged annular ring, the flex control region modifying normal flex characteristics of the ball bat, the enlarged annular ring having a diameter at a widest portion thereof greater than 2.5 times a diameter of the cylindrical handle zone.

References Cited (Backward Citations)

US537927A Cited
US546540A Cited
US1509733A Cited
US2031161A Cited
US4940247A Cited
US5131651A Cited
US5516097A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2001-11-09 2002-05-11 2002-11-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2005-11-09 2006-05-11 2006-11-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2009-11-09 2010-05-11 2010-11-10 $7700.00 Window Closed / Lapsed

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