US3830496A - Bat - Google Patents

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Publication number
US3830496A
US3830496A US00394571A US39457173A US3830496A US 3830496 A US3830496 A US 3830496A US 00394571 A US00394571 A US 00394571A US 39457173 A US39457173 A US 39457173A US 3830496 A US3830496 A US 3830496A
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United States
Prior art keywords
hitting
bat
cap
hollow elongated
handle
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Expired - Lifetime
Application number
US00394571A
Inventor
R Reizer
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MARINE MIDLAND BANK NA
AMF CORP
AMF CORP US
Original Assignee
AMF CORP
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Priority to US18945971A priority Critical
Application filed by AMF CORP filed Critical AMF CORP
Priority to US00394571A priority patent/US3830496A/en
Application granted granted Critical
Publication of US3830496A publication Critical patent/US3830496A/en
Assigned to CHEMICAL BANK reassignment CHEMICAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VOIT SPORTS, INC., A CORP OF NY.
Assigned to MANUFACTURERS HANOVER TRUST COMPANY reassignment MANUFACTURERS HANOVER TRUST COMPANY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VOIT SPORTS, INC., A NY. CORP.
Assigned to MANUFACTURERS HANOVER TRUST COMPANY, A BANKING CORP reassignment MANUFACTURERS HANOVER TRUST COMPANY, A BANKING CORP SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VOIT SPORTS, INC., A NY CORP
Assigned to Voit Sports, Inc. reassignment Voit Sports, Inc. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: MANUFACTURERS HANOVER TRUST COMPANY
Assigned to CONGRESS FINANCIAL CORPORATION reassignment CONGRESS FINANCIAL CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Voit Sports, Inc.
Assigned to MARINE MIDLAND BANK, N.A. reassignment MARINE MIDLAND BANK, N.A. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: Voit Sports, Inc.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B59/00Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
    • A63B59/50Substantially rod-shaped bats for hitting a ball in the air, e.g. for baseball
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B59/00Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
    • A63B59/50Substantially rod-shaped bats for hitting a ball in the air, e.g. for baseball
    • A63B59/56Substantially rod-shaped bats for hitting a ball in the air, e.g. for baseball characterised by the head
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06Handles
    • A63B60/16Caps; Ferrules
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2102/00Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
    • A63B2102/18Baseball, rounders or similar games
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S273/00Amusement devices: games
    • Y10S273/07Glass fiber

Abstract

A baseball bat comprising a plastic hollow barrel, two end caps for closing the same, an insert in the barrel, and a tapered force fit of the insert in the barrel by virtue of a taper on the insert and a plurality of inwardly extending lengthwise directed ridges on the interior of the barrel which are tapered in height along the length of the barrel.

Description

United States Patent 11 1 Reizer 1 BAT [75] lnventor: Robert F. Reizer, Anaheim, Calif.
[73] Assignee: AMF Corporation, White Plains,
[22] Filed: Sept. 6, 1973 [21] Appl. No.: 394,571
Related US. Application Data [63] Continuation-in-part of Ser. No. 189,459, Oct. 14,
1971, abandoned.
[52] US. Cl. 273/72 R, 273/D1G. 7 [51] Int. Cl A63b 59/06 [58] Field of Search. 273/67 R, 67 A, 67 D, 67 DA, 273/72 R, 72 A, 80 R, 80 B, 82 R, 82 A, 82
B, 80.2-80.8, DlG. 112
1 Aug. 20, 1974 3,025,061 3/1962 Ernst et a1 273/82 R 3,048,400 8/1962 Friedman.... 273/82 R 3,115,129 12/1963 Merriman 124/5 3,228,687 1/1966 Bauer 273/72 A 3,306,960 2/1967 Weissman.... 264/51 3,332,685 7/1967 Halip r 273/82 A 3,478,134 11/1969 Gruss et al 273/82 R X 3,638,942 2/1972 Bassett 273/67 A FOREIGN PATENTS OR APPLICATIONS 277,125 6/1965 Australia 273/82 A 746,779 11/1966 Canada 273/82 R 386,124 1/1933 Great Britain 273/802 434,533 9/1935 Great Britain r 273/80 B 478,008 1/1938 Great Britain 273/67 DA Primary Examiner-Richard C. Pinkham Assistant ExaminerRichard J. Apley Attorney, Agent, or FirmGeorge W. Price; Walter Lewis 2 Claims, 8 Drawing Figures PAIENIEB MIGZ 01974 FIG.
FIG. 8-
FIG. 3
PAIENFEDmsaomu SEEHZME X 4V6? i. s
BAT
This application is a continuation in part of my pending application Ser. No. 189,459 filed Oct. 14, I97] and now abandoned.
BACKGROUND This invention relates to baseball or softball bats, and more particularly, to ball bats having a nonwood body.
While the use of wooden bats has been unchallenged in Big League baseball play, their high cost, due to their tendency toward breakage, have led to dissatisfaction in other areas of play, such as in Little League play, school playgrounds, camps and the like.
However, due to tradition, there has been a reluctance to utilize more durable but less esthetically pleasing materials in bats, such as plastics. This reluctance has been crystalized by the non-wood appearance, sound, and feel of bats fabricated of plastic. Furthermore, it has been difficult to fabricate a non-wood bat that has the durability features of plastic and also approximates the performance characteristics of regulation wood bats in impact, stiffness, and sound.
SUMMARY It is, therefore, an object of this invention to provide a baseball or softball bat made of durable materials and having the characteristics of a wooden bat.
It is a further object of the invention to fabricate a ball bat having an exterior made of a durable and easyto-form plastic material and an interior stiffening memher.
It is a more specific object of the invention to provide a ball bat having an injection molded plastic exterior and a member mounted therein for imparting the stiffness and impact characteristics of wood.
In accordance with these and other objects, a ball bat according to the invention may comprise a plastic exterior, a plurality of ribs extending from the interior of said plastic, and an elongated reinforcing member removably mounted in said plastic and supported by said ribs.
DESCRIPTION OF THE DRAWINGS In the drawings FIG. 1 is an elevation view of the baseball bat of the invention;
FIG. 2 is a similar view broken away to show the interior parts;
FIG. 3 is an elevation view of the core insert;
FIG. 4 is an enlarged view of the butt end of the bat;
FIG. 5 is an enlarged view of the hitting end of the bat;
FIG. 6 is an exploded perspective view of the hitting end of the bat;
FIG. 7 is a cross-section view through the handle portion of the bat of FIG. 2; and
FIG. 8 is a cross-sectional view through the hitting portion of the bat of FIG. 2.
DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now particularly to the drawings, the bat comprises essentially the four major elements of an exterior elongated plastic barrel 10, an insert 11, and two end caps 12 and 13. As an option a color coded ring 14 is used with the cap 13 to indicate bat size.
The barrel 10, which is contoured on the exterior into the shape of a bat for playing the game of baseball or softball, has an enlarged hitting portion 10, a smaller handle portion 10', and an intermediate portion 10" which merges the other two portions with each other, see FIG. 2.
As shown, the barrel 10 is hollow, and is adapted to have a core 11 force fit therein. The core 11 is tapered slightly along its length and extends along essentially the whole length of barrel 10. The interior of barrel 10 has a plurality of radially inward extending ridges 15 formed thereon. Ten ridges 15 are illustrated, but it is within the scope of the invention to use more or less.
The ridges 15 extend for essentially the entire length of the barrel 10. They are tapered in their radial direction or height, see FIG. 8. That is to say, their sidewalls are tapered with respect to each other. The ridges are also tapered along their length, starting with a minimum height at the butt or cap 12 end of the bat, see FIG. 7, and gradually increasing in height to a maximum height at the hitting or cap 13 end of the bat, see FIG. 8. The dash line 15' in FIG. 2 represents the tapered height or depth of the ridges 15 as they progress along the length of the bat. The lengthwise taper to the core 11 and the lengthwise taper to the ridges 15 are matched so that when the core 11 is driven into the barrel a tapered force fit is secured between the core 11 and plurality of ridges 15.
The handle or butt end of the barrel 10 is closed by end cap 12 by virtue of threads 16 formed on the cap 12 and the corresponding outermost end of the barrel 10. The hitting end of the barrel 10 is closed by end cap 13. The ridges 15 terminate short of the outermost hitting end of the barrel to define a cavity 17 to provide a space to receive the inner end of cap 13.
Cap 13 is hollow and has a plurality of somewhat resilient inwardly extending fingers 18 formed thereon by virtue of slots 19. One of the slots 19 is longer than the others since it is intended to receive a locating ridge 20 formed in the cavity 17 to prevent the cap 13 from turning. On their interior the fingers 18 are reinforced by ridges l8, and on their exterior they have fine line ridges 18" formed thereon. The ridges 18 make it possible to drive the cap 13 into the cavity 17. As cap 13 is driven into cavity 17, the resilient fingers l8 flex slightly so that a secure connection is obtained of the cap 13 to the barrel.
A ring 14 is shown as being slipped over the fingers 18 between the outermost end of the barrel 18 and the cap 13. This ring 14 is given a color contrasting with the color of the barrel 10 according to a preselected color code to readily visually indicate the size of the bat.
The barrel 10 is injected molded, utilizing a glass filled thermoplastic resin system. The color of the thermoplastic resin is selected to approximate that of wood and the mold is designed to impart a surface design to the bat similar to the grain in a wood bat. Stain may be added later to enhance the simulated wood grain effect. The glass length utilized in the system is from l/ 16 inch to /2inch in length with E or S glass and silane finish. The thermoplastic resin system selected is nylon 6 with a glass concentration of 20 percent E glass with medium length fibers of V4 inch and silane finish. Other thermoplastics usable are nylon 6--6. nylon 6l0, nylon 6l 2 Polypropylene glass, styrene acrylonitrilc glass, polystyrene glass, polycarbonate glass, acrylonitrilebutadienestyrene glass, polyethylene glass, polysulfone glass, polyurethane glass, polyacetal glass, polyphenylene oxide glass and polyvinyl chloride glass. In addition, the glass concentration can vary as low as percent and as high as 50 percent with additives to improve weathering characteristics and glass beads to improve flow.
The butt end cap 12 is designed to be the knob end of the bat. Adhesive is applied to the threaded area 16 to make the screw fit permanent. In the alternative, the butt end cap 12 could be directly adhesively bonded or welded to the bat without utilizing the threaded connection. It may also be the terminus of the reinforcing member 11 and can be potted with adhesive to insure complete stabilization of the core. The adhesive system selected is Buna-N urethane epoxy. Other suitable adhesives are two part epoxy polyamide, epoxy polyamine, epoxy polyurethane, urethane, and any thermosetting or solvent release adhesive system with good peel and tensile shear strengths. Peel strengths of 20-50 in. lbs/in and tensile shear strengths of 2,000 to 5,000 PSI are adequate for this application. The butt end cap 12 is injected molded and is the same material as the barrel 10. The mold is designed to impart a simulated wood grain to the butt end cap 12 that matches that of the barrel 10.
The end cap 13 is a vital element of the combination in that it receives a major amount of the impact and abuse absorbed by the bat. The cap 13 is designed to provide increased resistance to impact and includes a cylindrical flange 21, see FIG. 5, which is slotted to provide the fingers l8, and which fits within the end of the barrel to provide a large surface area for adhesive bonding or welding of the end cap 13 to the barrel 10. The cap 13 is also injection molded of the same material as the barrel and a wood grain is imparted thereto. The end cap 13 can be keyed to the barrel by the slot 19 and ridge 20 to maintain the proper wood grain orientation. The ridges 18" on the bonding surface provide for an interference fit and maintain a uniform glue line thickness.
The reinforcing member 11 is used to increase the modulus of the bat in the handle area, and as a structural support in the hitting area. The impact of a ball on the barrel is transmitted through the ribs and into the reinforcing member which resists and counteracts the tendency for the bat to deform and attenuates the force of the impact. The use of the reinforcing member in combination with the ribbed barrel imparts an impact sound to the bat that approximates the sound of a wooden bat. However, if desired, sound attenuation can be achieved by the use of low density polyurethane foam in the voids between the reinforcing member, the
ribs and the interior surface of the barrel.
The material makeup of the reinforcing core 11 is dictated by three variables: modulus, weight, and cost. The best material from a strength to weight ratio is a 70 percent glass 30 percent phenolic or epoxy composite which would yield using unidirectional glass cloth l557X a modulus of 6.0 X IO 'PSI, but the cost of this material is prohibitive. A metallic core of aluminum (2024T3 or 7075T6) or thin walled steel could be used. Again, weight and cost would be the drawback. As a compromise between modulus, weight, and cost, a
wood core of maple with a specific gravity of 0.63 gms/cc and a modulus of elasticity l.8 X 10 PSI is provided.
To assemble the bat, the barrel 10, which is formed by injection molding, is abraded inside its cavity 17 to insure adhesive bonding of the end cap 13. The maple reinforcing member is prepared with adhesive by either tape wrapping or by coating from a liquid system. The barrel is heated to about 275F., and the maple reinforcing member is inserted into the ribs or ridges 15 as by an air ram. The taper of the reinforcing member 11 and of the ribs or ridges 15 provide an interference fit of the reinforcing member with the barrel. And, the heat from the barrel causes the adhesive on the maple reinforcing member to flow uniformly and firmly join the reinforcing member to the ribs or ridges 15 of the barrel.
The end caps, which are also injection molded, are sandblasted to break the surface glaze imparted by the injection molding operation and prepared with adhesive. The adhesive is applied to the end caps when they are at a temperature of l50 180F. The butt end cap 12 is screwed on to the barrel and the end cap 13 is forced into the barrel cavity 17 by an air ram or the like. The bat is heated to 250 275F. for a period of 30-45 minutes to cure the adhesive.
Since the moisture was driven out of the nylon 6 thermoplastic resin by the heat generated during the molding process, moisture is restored to the bat barrel by emplacing it in a boiling water bath for about 24 hours. The moisture reduces the crystallinity of the nylon to an amorphous state, which eliminates brittleness. The bat is then spray stained to obtain the wood grain effect and then waxed to a semi-gloss finish.
I claim:
1. A fabricated baseball bat comprising a hollow elongated exterior member having the outer contour of a conventional baseball bat comprising a hitting portion, a handle portion, and an intermediate portion interconnecting the two other portions, the hitting portion having a substantially constant outer diameter, the handle portion having an outer diameter substantially smaller than that of the hitting portion, and the inter mediate portion having a tapered outer diameter merging at opposite ends thereof with the hitting and handle portions, an elongated tapered reinforcing member inside said hollow elongated member, the large end of said tapered reinforcing member corresponding to said hitting portion and the small end thereof to said handle portion, a plurality of radially inward extending ribs on the inside of said hollow elongated member and spaced circumferentially about the inside surface of said hollow member, said ribs extending continuously and substantially the whole length of said hollow elongated member and being tapered from a small height at said handle portion to a maximum height at said hitting portion, said reinforcing member comprising a solid wood insert having a tapered force fit against said plurality of ribs and being substantially coextensive in length with said ribs, said hitting, handle and intermediate portions and said ribs being integral with each other and comprising glass-filled resin material, a pair of end caps closing opposite ends of said hollow elongated memher, said wood insert extending along the length of said hollow elongated member from adjacent one end cap to adjacent the other end cap, and said fabricated baseball bat comprising essentially said four parts of said and end cap therefor, said ring and hitting portion end cap having outer diameters corresponding to the outer diameter of said hitting portion, and said ring having a color contrasting with the color of said hollow elongated member to visually indicate the size of said bat in accordance with a preselected color code.
l l= l l

Claims (2)

1. A fabricated baseball bat comprising a hollow elongated exterior member having the outer contour of a conventional baseball bat comprising a hitting portion, a handle portion, and an intermediate portion interconnecting the two other portions, the hitting portion having a substantially constant outer diameter, the handle portion having an outer diameter substantially smaller than that of the hitting portion, and the intermediate portion having a tapered outer diameter merging at opposite ends thereof with the hitting and handle portions, an elongated tapered reinforcing member inside said hollow elongated member, the large end of said tapered reinforcing member corresponding to said hitting portion and the small end thereof to said handle portion, a plurality of radially inward extending ribs on the inside of said hollow elongated member and spaced circumferentially about the inside surface of said hollow member, said ribs extending continuously and substantially the whole length of said hollow elongated member and being tapered from a small height at said handle portion to a maximum height at said hitting portion, said reinforcing member comprising a solid wood insert having a tapered force fit against said plurality of ribs and being substantially coextensive in length with said ribs, said hitting, handle and intermediate portions and said ribs being integral with each other and comprising glass-filled resin material, a pair of end caps closing opposite ends of said hollow elongated member, said wood insert extending along the length of said hollow elongated member from adjacent one end cap to adjacent the other end cap, and said fabricated baseball bat comprising essentially said four parts of said hollow elongated member, said insert, and said pair of end caps.
2. In a baseball bat as in claim 1, wherein said resin material comprises nylon, said wood insert comprises maple, said end caps being constructed of the same material as said hollow elongated member, and a ring on the outer end of said bat between the hitting portion and end cap therefor, said ring and hitting portion end cap having outer diameters corresponding to the outer diameter of said hitting portion, and said ring having a color contrasting with the color of said hollow elongated member to visually indicate the size of said bat in accordance with a preselected color code.
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Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000895A (en) * 1975-08-18 1977-01-04 Reynolds Metals Company Ball bat
US4032143A (en) * 1975-09-29 1977-06-28 Desoto, Inc. Composite baseball bat
US4092025A (en) * 1976-05-19 1978-05-30 Aikoh Co., Ltd. Baseball bat made of fiber-reinforced plastics
US4188032A (en) * 1976-05-19 1980-02-12 Seiichi Yanagioka Nickel-plated golf club shaft made of fiber-reinforced plastics
US4343467A (en) * 1980-07-10 1982-08-10 Newcomb Nelson F Short hitting baseball bat
US4600193A (en) * 1983-09-19 1986-07-15 William Merritt Hollow bat
WO1991016953A1 (en) * 1990-05-04 1991-11-14 The Baum Research & Development Company, Inc. Composite baseball bat
US5219163A (en) * 1992-05-08 1993-06-15 Watson H Kirk Foam bat
US5301940A (en) * 1990-11-15 1994-04-12 Mizuno Corporation Baseball bat and production thereof
US5303917A (en) * 1992-04-13 1994-04-19 Uke Alan K Bat for baseball or softball
US5395108A (en) * 1994-01-19 1995-03-07 Easton Aluminum, Inc. Simulated wood composite ball bat
US5452889A (en) * 1994-02-04 1995-09-26 Tonka Corporation Ball striking device
US5511777A (en) * 1994-02-03 1996-04-30 Grover Products Co. Ball bat with rebound core
US5899823A (en) * 1997-08-27 1999-05-04 Demarini Sports, Inc. Ball bat with insert
US5954602A (en) * 1998-10-02 1999-09-21 Demarini Sports, Inc. Bat end plug and method for making the same
US6042493A (en) * 1998-05-14 2000-03-28 Jas. D. Easton, Inc. Tubular metal bat internally reinforced with fiber and metallic composite
US6723012B1 (en) * 2002-02-21 2004-04-20 Ce Composites Baseball, Inc. Polymer composite bat
US20040162169A1 (en) * 2000-03-27 2004-08-19 Brian Gallagher Training bat and method
US20040198539A1 (en) * 2002-02-21 2004-10-07 Sutherland Terrance W. Polymer composite bat
US20050003913A1 (en) * 2002-04-02 2005-01-06 Wilson Sporting Goods Co. Bat having a flexible handle
US20060229147A1 (en) * 2005-04-12 2006-10-12 J. Richard Industries, Inc. Sport item handle end cap
US20060293130A1 (en) * 2002-04-02 2006-12-28 Wilson Sporting Goods Co. Bat handle with optimal damping
US20070155546A1 (en) * 2006-01-03 2007-07-05 Dewey Chauvin Multi-piece ball bat connected via a flexible joint
US20070173358A1 (en) * 2000-03-27 2007-07-26 Brian Gallagher Training bat and method
US20070202974A1 (en) * 2006-11-16 2007-08-30 Giannetti William B Single wall ball bat including quartz structural fiber
US20070258752A1 (en) * 2006-05-03 2007-11-08 O'hern John Writing instrument fitted with a filing sleeve having an abrasive surface
US20080287228A1 (en) * 2007-05-16 2008-11-20 Giannetti William B Single wall ball bat including e-glass structural fiber
US7651420B1 (en) 2008-07-25 2010-01-26 Wilson Sporting Goods Co. Injection-molded ball bat
US20100105504A1 (en) * 2008-10-27 2010-04-29 Giannetti William B Ball bat including visual indication of whether internal structural tampering with the ball bat has occurred
US20100160095A1 (en) * 2008-12-23 2010-06-24 Dewey Chauvin Ball bat with governed performance
US20110077111A1 (en) * 2008-10-27 2011-03-31 Dewey Chauvin Ball bat including a tamper-resistant cap
US20110124447A1 (en) * 2009-11-23 2011-05-26 Dewey Chauvin Ball bat including integral barrel features for reducing bbcor
US8512175B2 (en) 2010-11-02 2013-08-20 Wilson Sporting Goods Co. Ball bat including a barrel portion having separate proximal and distal members
US9186562B1 (en) 2012-01-24 2015-11-17 Plasticomp, Inc. Sports gear achieving specified performance criteria and the corresponding methods of making
US9242156B2 (en) 2013-01-24 2016-01-26 Wilson Sporting Goods Co. Tapered isolating element for a ball bat and system for using same
US9427640B2 (en) 2014-04-11 2016-08-30 Easton Baseball/Softball Inc. Ball bat including a stiffening element in the barrel
CN106334297A (en) * 2015-07-14 2017-01-18 亚猎士科技股份有限公司 Bat structure
US20170354854A1 (en) * 2016-06-10 2017-12-14 Anarchy Bat Company Inc. Baseball Bat with Performance Limiting Core
US10384106B2 (en) 2017-11-16 2019-08-20 Easton Diamond Sports, Llc Ball bat with shock attenuating handle
USD876693S1 (en) 2017-08-03 2020-02-25 E. Mishan & Sons, Inc. Flashlight baton with crenulate sliding bezel
US10709946B2 (en) 2018-05-10 2020-07-14 Easton Diamond Sports, Llc Ball bat with decoupled barrel

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US1600390A (en) * 1925-02-09 1926-09-21 Barbarite Corp Shaft for golf clubs and the like
US1848374A (en) * 1930-06-11 1932-03-08 Morgan Robert Golf club shaft
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GB478008A (en) * 1935-11-13 1938-01-11 Edward James Horace Brooks Improvements in handles for cricket bats and the like
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US4188032A (en) * 1976-05-19 1980-02-12 Seiichi Yanagioka Nickel-plated golf club shaft made of fiber-reinforced plastics
US4343467A (en) * 1980-07-10 1982-08-10 Newcomb Nelson F Short hitting baseball bat
US4600193A (en) * 1983-09-19 1986-07-15 William Merritt Hollow bat
WO1991016953A1 (en) * 1990-05-04 1991-11-14 The Baum Research & Development Company, Inc. Composite baseball bat
US5301940A (en) * 1990-11-15 1994-04-12 Mizuno Corporation Baseball bat and production thereof
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US5219163A (en) * 1992-05-08 1993-06-15 Watson H Kirk Foam bat
US5395108A (en) * 1994-01-19 1995-03-07 Easton Aluminum, Inc. Simulated wood composite ball bat
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US5452889A (en) * 1994-02-04 1995-09-26 Tonka Corporation Ball striking device
US5899823A (en) * 1997-08-27 1999-05-04 Demarini Sports, Inc. Ball bat with insert
US6042493A (en) * 1998-05-14 2000-03-28 Jas. D. Easton, Inc. Tubular metal bat internally reinforced with fiber and metallic composite
US5954602A (en) * 1998-10-02 1999-09-21 Demarini Sports, Inc. Bat end plug and method for making the same
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US20070173358A1 (en) * 2000-03-27 2007-07-26 Brian Gallagher Training bat and method
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US6723012B1 (en) * 2002-02-21 2004-04-20 Ce Composites Baseball, Inc. Polymer composite bat
US7097578B2 (en) 2002-04-02 2006-08-29 Wilson Sporting Goods Co. Bat having a flexible handle
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US20060229147A1 (en) * 2005-04-12 2006-10-12 J. Richard Industries, Inc. Sport item handle end cap
US8052547B2 (en) * 2005-04-12 2011-11-08 Nike, Inc. Sport item handle end cap
US20070155546A1 (en) * 2006-01-03 2007-07-05 Dewey Chauvin Multi-piece ball bat connected via a flexible joint
US7572197B2 (en) 2006-01-03 2009-08-11 Easton Sports, Inc. Multi-piece ball bat connected via a flexible joint
US20070258752A1 (en) * 2006-05-03 2007-11-08 O'hern John Writing instrument fitted with a filing sleeve having an abrasive surface
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US20080287228A1 (en) * 2007-05-16 2008-11-20 Giannetti William B Single wall ball bat including e-glass structural fiber
US20100022334A1 (en) * 2008-07-25 2010-01-28 Gaff Bradley L Injection-molded ball bat
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US20100105504A1 (en) * 2008-10-27 2010-04-29 Giannetti William B Ball bat including visual indication of whether internal structural tampering with the ball bat has occurred
US8282516B2 (en) 2008-10-27 2012-10-09 Easton Sports, Inc. Ball bat including a tamper-resistant cap
US7914404B2 (en) * 2008-10-27 2011-03-29 Easton Sports, Inc. Ball bat including visual indication of whether internal structural tampering with the ball bat has occurred
US20110077111A1 (en) * 2008-10-27 2011-03-31 Dewey Chauvin Ball bat including a tamper-resistant cap
US10029162B2 (en) * 2008-12-23 2018-07-24 Easton Diamond Sports, Llc Ball bat with governed performance
US20130274039A1 (en) * 2008-12-23 2013-10-17 Easton Sports, Inc. Ball bat with governed performance
US20100160095A1 (en) * 2008-12-23 2010-06-24 Dewey Chauvin Ball bat with governed performance
US8298102B2 (en) 2008-12-23 2012-10-30 Easton Sports, Inc. Ball bat with governed performance
US20140342856A1 (en) * 2008-12-23 2014-11-20 Easton Baseball / Softball Inc. Ball bat with governed performance
US8795108B2 (en) * 2008-12-23 2014-08-05 Easton Baseball/Softball Inc. Ball bat with governed performance
US8197366B2 (en) 2009-11-23 2012-06-12 Easton Sports, Inc. Ball bat including integral barrel features for reducing BBCOR
US20110124447A1 (en) * 2009-11-23 2011-05-26 Dewey Chauvin Ball bat including integral barrel features for reducing bbcor
US8506429B2 (en) 2009-11-23 2013-08-13 Easton Sports, Inc. Ball bat including integral barrel features for reducing BBCOR
US8715118B2 (en) 2010-11-02 2014-05-06 Wilson Sporting Goods Co. Ball bat including a barrel portion having separate proximal and distal members
US8512175B2 (en) 2010-11-02 2013-08-20 Wilson Sporting Goods Co. Ball bat including a barrel portion having separate proximal and distal members
US8512174B2 (en) 2010-11-02 2013-08-20 Wilson Sporting Goods Co. Ball bat including a barrel portion having separate proximal and distal members
US9186562B1 (en) 2012-01-24 2015-11-17 Plasticomp, Inc. Sports gear achieving specified performance criteria and the corresponding methods of making
US9242156B2 (en) 2013-01-24 2016-01-26 Wilson Sporting Goods Co. Tapered isolating element for a ball bat and system for using same
US9802094B2 (en) 2013-01-24 2017-10-31 Wilson Sporting Goods Co. Tapered isolating element for a ball bat and system for using same
US9731180B2 (en) 2013-01-24 2017-08-15 Wilson Sporting Goods Co. Tapered isolating element for a ball bat and system for using same
US9427640B2 (en) 2014-04-11 2016-08-30 Easton Baseball/Softball Inc. Ball bat including a stiffening element in the barrel
US9895588B2 (en) 2014-04-11 2018-02-20 Easton Diamond Sports, Llc Ball bat including a stiffening element in the barrel
CN106334297A (en) * 2015-07-14 2017-01-18 亚猎士科技股份有限公司 Bat structure
US10583340B2 (en) * 2016-06-10 2020-03-10 Anarchy Bat Company Ltd. Baseball bat with performance limiting core
US20170354854A1 (en) * 2016-06-10 2017-12-14 Anarchy Bat Company Inc. Baseball Bat with Performance Limiting Core
USD876693S1 (en) 2017-08-03 2020-02-25 E. Mishan & Sons, Inc. Flashlight baton with crenulate sliding bezel
US10384106B2 (en) 2017-11-16 2019-08-20 Easton Diamond Sports, Llc Ball bat with shock attenuating handle
US10709946B2 (en) 2018-05-10 2020-07-14 Easton Diamond Sports, Llc Ball bat with decoupled barrel

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