US20050064965A1 - Shock absorbing baseball bat and method of manufacturing - Google Patents
Shock absorbing baseball bat and method of manufacturing Download PDFInfo
- Publication number
- US20050064965A1 US20050064965A1 US10/987,127 US98712704A US2005064965A1 US 20050064965 A1 US20050064965 A1 US 20050064965A1 US 98712704 A US98712704 A US 98712704A US 2005064965 A1 US2005064965 A1 US 2005064965A1
- Authority
- US
- United States
- Prior art keywords
- bat
- set forth
- overlay
- overlay member
- handle
- 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
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/06—Handles
- A63B60/10—Handles with means for indicating correct holding positions
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
- A63B59/50—Substantially rod-shaped bats for hitting a ball in the air, e.g. for baseball
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/06—Handles
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/06—Handles
- A63B60/08—Handles characterised by the material
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
- A63B59/50—Substantially rod-shaped bats for hitting a ball in the air, e.g. for baseball
- A63B59/58—Substantially rod-shaped bats for hitting a ball in the air, e.g. for baseball characterised by the shape
- A63B2059/581—Substantially rod-shaped bats for hitting a ball in the air, e.g. for baseball characterised by the shape with a continuously tapered barrel
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application 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
- A63B2102/18—Baseball, rounders or similar games
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
- A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
- A63B2209/023—Long, oriented fibres, e.g. wound filaments, woven fabrics, mats
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/10—Non-metallic shafts
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/14—Handles
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/06—Handles
- A63B60/14—Coverings specially adapted for handles, e.g. sleeves or ribbons
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/42—Devices for measuring, verifying, correcting or customising the inherent characteristics of golf clubs, bats, rackets or the like, e.g. measuring the maximum torque a batting shaft can withstand
Definitions
- This invention generally relates to baseball bats having a shock resistant handle, a shock resisting grip for baseball bats, and a method of applying a shock resistant grip to baseball bats.
- the invention relates to imparting shock absorbing and vibration damping properties to other tubular or cylindrical articles.
- the invention relates to increasing the strength of elongated articles.
- U.S. Pat. No. 6,036,610 discloses a braided hybrid composite overlay laminated to the handle of a wooden bat to provide an enhanced gripping surface and to strengthen the bat.
- U.S. Pat. No. 3,129,003 discloses a baseball bat with a reinforced handle having a woven sleeve of glass fibers laminated to the bat handle.
- the present invention provides a baseball bat which has a shock absorbing grip to absorb shock and dampen vibration and also provide an enhanced gripping surface.
- This invention utilizes a biaxially braided tubular overlay member which is formed from a plurality of carbon fibers and a plurality of aramid fibers.
- the tubular member or sleeve is applied over the end of the bat.
- a thermo-setting resin matrix material is applied to the tubular overlay and the handle of the bat such that the sleeve is substantially saturated.
- the sleeve is then compressed with a shrink wrap tape under pressure.
- the bat is then cured in an oven and the shrink wrap tape is removed from the bat.
- the baseball bat made in accordance with this invention will absorb a significant amount of shock and vibration.
- the invention is applicable to wood and composite bats as well as aluminum bats. Further, the invention is also applicable to softball bats. Finally, it should be noted that the invention is applicable to many other articles where shock absorption and vibration damping are desired.
- the principles of this invention may be applied in a number of different contexts to impart increased strength to a wide variety of different articles.
- Qualitative evaluation has shown that articles prepared in accordance with the principles of this invention have a strength substantially greater than the strength of the same article without any laminated reinforcing material and greater that the strength of the same article prepared in accordance with the invention disclosed in U.S. Pat. No. 6,036,610.
- Such articles include the handles of tools and other devices subject to impact such as hammers, axes, shovels, sledge hammers, picks, mattocks, hoes, shears, and cutters; athletic equipment subject to impact such as baseball bats, softball bats, cricket bats, hockey sticks, field hockey sticks, ice hockey sticks, roller hockey sticks, lacrosse sticks, rackets, golf club shafts and exercise equipment; frames such as the frames of bicycles, mountain bikes, ultra lights, hang gliders and exercise equipment; and other objects such as boat masts, oars, paddles, mop handles, broom handles, fishing equipment, posts and poles.
- tools and other devices subject to impact such as hammers, axes, shovels, sledge hammers, picks, mattocks, hoes, shears, and cutters
- athletic equipment subject to impact such as baseball bats, softball bats, cricket bats, hockey sticks, field hockey sticks, ice hockey sticks, roller hockey sticks, lacross
- the present invention may be applied to virtually any elongated object and that such objects may have a wide variety of different cross sectional shapes such as tubular, cylindrical, ovular, triangular, quadrilateral, hexagonal, octagonal, etc.
- FIG. 1 is a plan view of a baseball bat having an overlay member laminated to the grip in accordance with the principles of this invention.
- FIG. 2 is an exploded plan view of a portion of a tubular composite braided overlay member in accordance with the principles of this invention.
- FIG. 3 is a graph illustrating the shock damping characteristics of an aluminum baseball bat with a conventional leather grip.
- FIG. 4 is a graph illustrating the shock damping characteristics of an aluminum baseball bat with a grip made in accordance with this invention.
- FIG. 1 a baseball bat generally designated as 10 having a barrel or hitting portion 11 , a grip or handle portion 12 , and a knob 13 at the free end of the grip.
- a braided tubular hybrid composite overlay member 14 is laminated to the handle 12 .
- the member 14 is a biaxially braided or woven tubular shape member made from a plurality of carbon fibers 16 and aramid fibers 17 which are braided together.
- the overlay member 14 is braided with 50% of the fibers being carbon and 50% of the fibers being aramid, or any optimal combination thereof.
- the overlay member 14 should be no longer than 18 inches which is the maximum span allowable by major league baseball to enhance the grip surface of the handle.
- a sleeve of graphite and aramid material is slipped over the knob 13 of a baseball bat 10 .
- the bottom end of the sleeve is positioned to be abutting against the knob 13 of the bat for maximum dampening effect.
- the knob slopes into the handle 12 , it is required that a space be left between the end of the sleeve and the knob.
- Thermosetting resin matrix material preferably epoxy, is inserted into the interior of the sleeve at the top.
- the sleeve is stretched and the epoxy is worked from the top of the sleeve to the bottom of the sleeve, and is worked from the interior of the sleeve to the exterior.
- the working is accomplished by kneading while extending the sleeve so that the sleeve is substantially saturated. Excess epoxy is wiped off the sleeve until the sleeve appears dry.
- the bat is then wrapped with a cellophane shrink wrap from the knob to a distance of 23 inches toward the barrel end of the bat.
- the cellophane shrink tape compresses the epoxy saturated sleeve to the bat handle under at least approximately 150 lbs. per square inch pressure.
- the bat is placed in an oven at 200 degrees F. for 30 minutes.
- the bat After curing, the bat is removed from the oven and the cellophane shrink tape is removed.
- the foregoing procedure eliminates almost 100% of any air bubbles or voids in the resin matrix and bonds the sleeve to the bat handle completely so that it becomes an integral part of the handle.
- the resultant bat reduces shock and vibrations by at least 60% when compared to a bat without any grip.
- Accelerometers were mounted on the barrel (0.5 in. from the end), the midpoint on the bat and on the handle's grip (3.0 in. from the end).
- the accelerometers were labeled channels 1 , 2 and 3 , respectively.
- the bat was suspended by two cords located 6 inches from each end.
- a major league baseball was used to apply an impact near the end of the barrel.
- Vibration data were measured by the accelerometers and processed using a data-acquisition system. The data were recorded at sampling rates of 4096 and 10240 Hz to allow for identification of the first three vibrational modes of the bat. Two to three impacts were recorded for each of the three grip configurations. For each test, the shock pulse was plotted along with its frequency spectral content for a time frame just after impact.
- FIGS. 3 and 4 show the vibration of the handle portion of the bat (channel 3 ). The results show that the shock absorbing grip of this invention provides significant damping to the first two bending modes and the hoop mode of the aluminum bat. The damping effect of the leather grip was minimal.
- the handle-vibration level in the leather grip bat was reduced by approximately 25% in comparison to without any grip.
- the shock resistant grip of this invention reduced the vibration level by 60%.
- the bats in accordance with this invention were compared to conventional bats using field testing in the batting cage.
- the damping effect of the subject grip was obvious through both reduced-sound levels and by personal feel in the hands.
- the testing showed that the subject grip on an aluminum bat significantly decreases the amount of shock and vibration transmitted to the batter's hands.
- the subject grip can effectively eliminate the sting of an aluminum bat.
- the principles of the present invention may be used to impart shock absorbing and vibration damping properties to a wide variety of different articles.
- the handle of a hammer may be treated in a manner similar to that described above to impart the handle with shock absorbing and vibrational damping properties.
- the principles of the invention may be applied in any context where it is desired to impart an article with shock absorbing or vibration damping properties.
- the use of this invention can impart increased strength to a wide variety of articles.
- Qualitative evaluation has shown that articles prepared in accordance with the principles of this invention have a strength substantially greater than the strength of the same article without any laminated reinforcing material and greater that the strength of the same article prepared in accordance with the invention disclosed in U.S. Pat. No. 6,036,610.
- Such articles include the handles of tools and other devices subject to impact such as hammers, axes, shovels, sledge hammers, picks, mattocks, hoes, shears, and cutters; athletic equipment subject to impact such as baseball bats, softball bats, cricket bats, hockey sticks, field hockey sticks, ice hockey sticks, roller hockey sticks, lacrosse sticks, rackets, golf club shafts and exercise equipment; frames such as the frames of bicycles, mountain bikes, ultra lights, hang gliders and exercise equipment; and other objects such as boat masts, oars, paddles, mop handles, broom handles, fishing equipment, posts and poles.
- tools and other devices subject to impact such as hammers, axes, shovels, sledge hammers, picks, mattocks, hoes, shears, and cutters
- athletic equipment subject to impact such as baseball bats, softball bats, cricket bats, hockey sticks, field hockey sticks, ice hockey sticks, roller hockey sticks, lacross
- the present invention may be applied to virtually any elongated object and that such objects may have a wide variety of different cross sectional shapes such as tubular, cylindrical, ovular, triangular, quadrilateral, hexagonal, octagonal, etc.
Abstract
A bat that has shock absorbing and vibrational damping properties as well as enhanced strength and flexibility and method of manufacturing. Such properties are imparted by laminating under pressure a biaxially braided tubular overlay member formed from a hybrid of carbon fibers and aramid fibers to the handle portion of the bat.
Description
- This application is a divisional application of U.S. application Ser. No. 10/015,348 titled “Shock Absorbing Baseball Bat and Method of Manufacturing” filed Dec. 12, 2001 which in turn is a continuation-in-part application claiming priority from and the benefit of U.S. Provisional Application No. 60/254,944 titled “Shock Absorbing Baseball Bat and Method of Manufacturing” filed Dec. 12, 2000. The entire contents of the foregoing applications are hereby incorporated herein by reference.
- 1. Field of the Invention
- In the case of baseball bats, and particularly aluminum bats, it is desirable to reduce the shock transmitted from the impact of the ball to the handle of the bat and to the hands of the batter. This invention generally relates to baseball bats having a shock resistant handle, a shock resisting grip for baseball bats, and a method of applying a shock resistant grip to baseball bats. In addition, the invention relates to imparting shock absorbing and vibration damping properties to other tubular or cylindrical articles. In addition, the invention relates to increasing the strength of elongated articles.
- 2. Prior Art
- U.S. Pat. No. 6,036,610 discloses a braided hybrid composite overlay laminated to the handle of a wooden bat to provide an enhanced gripping surface and to strengthen the bat.
- U.S. Pat. No. 3,129,003 discloses a baseball bat with a reinforced handle having a woven sleeve of glass fibers laminated to the bat handle.
- None of the prior art describes a bat having a tubular braided composite overlay member which is designed to absorb and reduce shock and vibration.
- The present invention provides a baseball bat which has a shock absorbing grip to absorb shock and dampen vibration and also provide an enhanced gripping surface. This invention utilizes a biaxially braided tubular overlay member which is formed from a plurality of carbon fibers and a plurality of aramid fibers. The tubular member or sleeve is applied over the end of the bat. A thermo-setting resin matrix material is applied to the tubular overlay and the handle of the bat such that the sleeve is substantially saturated. The sleeve is then compressed with a shrink wrap tape under pressure. The bat is then cured in an oven and the shrink wrap tape is removed from the bat.
- The baseball bat made in accordance with this invention will absorb a significant amount of shock and vibration. The invention is applicable to wood and composite bats as well as aluminum bats. Further, the invention is also applicable to softball bats. Finally, it should be noted that the invention is applicable to many other articles where shock absorption and vibration damping are desired.
- In addition to the shock absorbing and vibration damping properties, the principles of this invention may be applied in a number of different contexts to impart increased strength to a wide variety of different articles. Qualitative evaluation has shown that articles prepared in accordance with the principles of this invention have a strength substantially greater than the strength of the same article without any laminated reinforcing material and greater that the strength of the same article prepared in accordance with the invention disclosed in U.S. Pat. No. 6,036,610. Examples of such articles include the handles of tools and other devices subject to impact such as hammers, axes, shovels, sledge hammers, picks, mattocks, hoes, shears, and cutters; athletic equipment subject to impact such as baseball bats, softball bats, cricket bats, hockey sticks, field hockey sticks, ice hockey sticks, roller hockey sticks, lacrosse sticks, rackets, golf club shafts and exercise equipment; frames such as the frames of bicycles, mountain bikes, ultra lights, hang gliders and exercise equipment; and other objects such as boat masts, oars, paddles, mop handles, broom handles, fishing equipment, posts and poles.
- It should be understood that the present invention may be applied to virtually any elongated object and that such objects may have a wide variety of different cross sectional shapes such as tubular, cylindrical, ovular, triangular, quadrilateral, hexagonal, octagonal, etc.
-
FIG. 1 is a plan view of a baseball bat having an overlay member laminated to the grip in accordance with the principles of this invention. -
FIG. 2 is an exploded plan view of a portion of a tubular composite braided overlay member in accordance with the principles of this invention. -
FIG. 3 is a graph illustrating the shock damping characteristics of an aluminum baseball bat with a conventional leather grip. -
FIG. 4 is a graph illustrating the shock damping characteristics of an aluminum baseball bat with a grip made in accordance with this invention. - The following description is of the best currently contemplated mode for carrying out the invention. This description is made for the purpose of illustrating the general principles of the invention and should not be taken in a limiting sense.
- In accordance with the present invention, there is shown in
FIG. 1 a baseball bat generally designated as 10 having a barrel or hittingportion 11, a grip orhandle portion 12, and aknob 13 at the free end of the grip. A braided tubular hybridcomposite overlay member 14 is laminated to thehandle 12. Themember 14 is a biaxially braided or woven tubular shape member made from a plurality ofcarbon fibers 16 andaramid fibers 17 which are braided together. Preferably theoverlay member 14 is braided with 50% of the fibers being carbon and 50% of the fibers being aramid, or any optimal combination thereof. Theoverlay member 14 should be no longer than 18 inches which is the maximum span allowable by major league baseball to enhance the grip surface of the handle. - The text of U.S. Pat. No. 6,036,601 is incorporated by reference herein.
- It has been determined and validated that significant shock and vibration damping is obtained by the use of this invention. To obtain these results, a sleeve of graphite and aramid material is slipped over the
knob 13 of abaseball bat 10. For aluminum bats, the bottom end of the sleeve is positioned to be abutting against theknob 13 of the bat for maximum dampening effect. For wood bats, where the knob slopes into thehandle 12, it is required that a space be left between the end of the sleeve and the knob. Thermosetting resin matrix material, preferably epoxy, is inserted into the interior of the sleeve at the top. The sleeve is stretched and the epoxy is worked from the top of the sleeve to the bottom of the sleeve, and is worked from the interior of the sleeve to the exterior. The working is accomplished by kneading while extending the sleeve so that the sleeve is substantially saturated. Excess epoxy is wiped off the sleeve until the sleeve appears dry. The bat is then wrapped with a cellophane shrink wrap from the knob to a distance of 23 inches toward the barrel end of the bat. The cellophane shrink tape compresses the epoxy saturated sleeve to the bat handle under at least approximately 150 lbs. per square inch pressure. The bat is placed in an oven at 200 degrees F. for 30 minutes. After curing, the bat is removed from the oven and the cellophane shrink tape is removed. The foregoing procedure eliminates almost 100% of any air bubbles or voids in the resin matrix and bonds the sleeve to the bat handle completely so that it becomes an integral part of the handle. The resultant bat reduces shock and vibrations by at least 60% when compared to a bat without any grip. - Two aluminum bats were tested to determine the amount of vibration damping. One bat was gripped with the shock absorbing grip of this invention. The second bat, after measuring its weight, was gripped with a standard leather grip. The properties of these bats are shown in Table 1 below:
TABLE 1 Bat Dimensions Shock Resistant Conventional Aluminum Bat with Grip Bat Aluminum Bat Leather Grip Weight (oz) 30.48 28.47 29.22 Length (in) 33.94 33.88 33.88 CG (in-from 12.69 11.88 12.25 barrel end) - Accelerometers were mounted on the barrel (0.5 in. from the end), the midpoint on the bat and on the handle's grip (3.0 in. from the end). The accelerometers were labeled
channels -
FIGS. 3 and 4 show the vibration of the handle portion of the bat (channel 3). The results show that the shock absorbing grip of this invention provides significant damping to the first two bending modes and the hoop mode of the aluminum bat. The damping effect of the leather grip was minimal. - During the first ¼ second following impact, the handle-vibration level in the leather grip bat was reduced by approximately 25% in comparison to without any grip. During the same time period, the shock resistant grip of this invention reduced the vibration level by 60%.
- To validate the results qualitatively, the bats in accordance with this invention were compared to conventional bats using field testing in the batting cage. The damping effect of the subject grip was obvious through both reduced-sound levels and by personal feel in the hands.
- In summary, the testing showed that the subject grip on an aluminum bat significantly decreases the amount of shock and vibration transmitted to the batter's hands. The subject grip can effectively eliminate the sting of an aluminum bat.
- It should be noted that the principles of the present invention may be used to impart shock absorbing and vibration damping properties to a wide variety of different articles. For example, the handle of a hammer may be treated in a manner similar to that described above to impart the handle with shock absorbing and vibrational damping properties. The principles of the invention may be applied in any context where it is desired to impart an article with shock absorbing or vibration damping properties.
- In addition, to the shock absorbing and vibration damping properties, the use of this invention can impart increased strength to a wide variety of articles. Qualitative evaluation has shown that articles prepared in accordance with the principles of this invention have a strength substantially greater than the strength of the same article without any laminated reinforcing material and greater that the strength of the same article prepared in accordance with the invention disclosed in U.S. Pat. No. 6,036,610. Examples of such articles include the handles of tools and other devices subject to impact such as hammers, axes, shovels, sledge hammers, picks, mattocks, hoes, shears, and cutters; athletic equipment subject to impact such as baseball bats, softball bats, cricket bats, hockey sticks, field hockey sticks, ice hockey sticks, roller hockey sticks, lacrosse sticks, rackets, golf club shafts and exercise equipment; frames such as the frames of bicycles, mountain bikes, ultra lights, hang gliders and exercise equipment; and other objects such as boat masts, oars, paddles, mop handles, broom handles, fishing equipment, posts and poles.
- It should be understood that the present invention may be applied to virtually any elongated object and that such objects may have a wide variety of different cross sectional shapes such as tubular, cylindrical, ovular, triangular, quadrilateral, hexagonal, octagonal, etc.
- Although the invention is described herein with reference to a specific embodiment, many modifications and variations therein will readily occur to those skilled in the art. Accordingly, all such variations and modifications are included within the intended scope of the invention.
Claims (19)
1. A bat comprising:
a bat having a hitting portion and a handle portion;
a tubular biaxial braided overlay member laminated to the handle portion of said bat;
said overlay member comprising a hybrid of carbon fibers and aramid fibers;
said laminated overlay member having shock absorbing properties.
2. A bat as set forth in claim 1 wherein the lamination of said overlay member to said handle portion of said bat comprises the steps of:
applying a thermosetting material to said overlay and said handle portion so that said overlay is substantially saturated with said thermosetting material;
wrapping at least a portion of the bat with a suitable material to compress the overlay to the bat handle; and
heating the thermosetting material under appropriate conditions to accomplish at least partial setting of the thermosetting material.
3. A bat as set forth in claim 1 wherein said bat is a baseball bat.
4. A bat as set forth in claim 1 wherein said bat is a softball bat.
5. A bat as set forth in claim 1 wherein said laminated overlay member reduces handle vibration by approximately sixty percent when compared with a bat without any grip.
6. A bat as set forth in claim 1 wherein the overlay member is formed with a substantially equal number of carbon fibers and aramid fibers.
7. A bat as set forth in claim 1 wherein the overlay member is formed with alternating strands of carbon fibers and aramid fibers.
8. A bat as set forth in claim 1 wherein the overlay member is formed with a plurality of strands of carbon fiber alternating with a plurality of strands of aramid fibers.
9. A bat as set forth in claim 1 wherein the overlay member is laminated with a thermosetting resin matrix to the handle portion of the bat.
10. A bat as set forth in claim 9 wherein said thermosetting resin matrix is an epoxy system.
11. A bat as set forth in claim 9 wherein said thermosetting resin matrix is an epoxy-amine system.
12. A bat as set forth in claim 2 wherein said laminated overlay member reduces handle vibration by approximately sixty percent when compared with a bat without any grip.
13. A bat as set forth in claim 2 wherein said overlay is compressed to said bat handle under a pressure of at least approximately 150 pounds per square inch.
14. A bat as set forth in claim 2 wherein said suitable wrapping material comprises cellophane shrink wrap.
15. A bat as set forth in claim 18 wherein said overlay is compressed to said bat handle under a pressure of at least approximately 150 pounds per square inch.
16. A bat as set forth in claim 19 wherein said laminated overlay member reduces handle vibration by approximately sixty percent when compared with a bat without any grip.
17. A bat as set forth in claim 2 wherein the overlay member is formed with a substantially equal number of carbon fibers and aramid fibers.
18. A bat as set forth in claim 2 wherein the overlay member is formed with alternating strands of carbon fibers and aramid fibers.
19. A bat as set forth in claim 2 wherein the overlay member is formed with a plurality of strands of carbon fiber alternating with a plurality of strands of aramid fibers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/987,127 US20050064965A1 (en) | 2000-12-12 | 2004-11-12 | Shock absorbing baseball bat and method of manufacturing |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25494400P | 2000-12-12 | 2000-12-12 | |
US10/015,348 US20020128095A1 (en) | 2000-12-12 | 2001-12-12 | Shock absorbing baseball bat and method of manufacturing |
US10/987,127 US20050064965A1 (en) | 2000-12-12 | 2004-11-12 | Shock absorbing baseball bat and method of manufacturing |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/015,348 Division US20020128095A1 (en) | 2000-12-12 | 2001-12-12 | Shock absorbing baseball bat and method of manufacturing |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050064965A1 true US20050064965A1 (en) | 2005-03-24 |
Family
ID=26687264
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/015,348 Abandoned US20020128095A1 (en) | 2000-12-12 | 2001-12-12 | Shock absorbing baseball bat and method of manufacturing |
US10/987,127 Abandoned US20050064965A1 (en) | 2000-12-12 | 2004-11-12 | Shock absorbing baseball bat and method of manufacturing |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/015,348 Abandoned US20020128095A1 (en) | 2000-12-12 | 2001-12-12 | Shock absorbing baseball bat and method of manufacturing |
Country Status (1)
Country | Link |
---|---|
US (2) | US20020128095A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080237937A1 (en) * | 2005-02-26 | 2008-10-02 | Ben Aaron | Means and Method for Producing Enhanced Object Gripping Surfaces and Enhancing Object Strength, and The Objects So Enhanced |
US20090312126A1 (en) * | 2008-06-16 | 2009-12-17 | Giuseppe Totino | Reinforced baseball bat |
US20090325738A1 (en) * | 2008-06-25 | 2009-12-31 | Pryor Mark K | Baseball Bat |
US8083619B1 (en) * | 2001-10-04 | 2011-12-27 | Sun Systems, Inc. | Practice bat and method for use |
US8241155B1 (en) * | 2008-10-16 | 2012-08-14 | American Coatings Corp. | Bat safety system |
US20130045823A1 (en) * | 2011-02-16 | 2013-02-21 | Robert Earl Sublett, SR. | Reinforced Wooden Baseball Bat and Method |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7229370B1 (en) | 2001-01-19 | 2007-06-12 | Rawlings Sporting Goods Company, Inc. | Filament wound bat and winding and molding method therefore |
US20040127310A1 (en) * | 2002-12-31 | 2004-07-01 | Sanhosun Sporting Goods Co., Ltd. | Composite material bat |
US7115054B2 (en) * | 2004-07-29 | 2006-10-03 | Jas. D. Easton, Inc. | Ball bat exhibiting optimized performance via selective placement of interlaminar shear control zones |
US20130260926A1 (en) * | 2012-03-28 | 2013-10-03 | Mizuno Usa, Inc. | Bat with reinforcing wrap |
US20130288830A1 (en) * | 2012-04-25 | 2013-10-31 | Mark Kreindler | Structurally modified bat for sports, including methods of production |
CN202753496U (en) * | 2012-07-25 | 2013-02-27 | 捷安特(昆山)有限公司 | Blend fiber combined structure for bicycles |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1617972A (en) * | 1925-08-26 | 1927-02-15 | Robert S Wallace | Grip for golf clubs |
US1701856A (en) * | 1925-04-08 | 1929-02-12 | Kroydon Company | Handle grip and method of making the same |
US1917795A (en) * | 1930-09-18 | 1933-07-11 | Fetter Edward | Golf club structure |
US2984486A (en) * | 1959-02-05 | 1961-05-16 | Lloyd J Jones | Slip-proof sleeve for a baseball bat handle |
US3115912A (en) * | 1960-10-28 | 1963-12-31 | Strucfural Fibers Inc | Tool handle |
US3129003A (en) * | 1960-09-29 | 1964-04-14 | Mueller Perry Co Inc | Ball bat with reinforced handle |
US3147012A (en) * | 1961-11-14 | 1964-09-01 | Louis F Muccino | Slip resistant grip for handles of golf clubs |
US4012039A (en) * | 1973-07-13 | 1977-03-15 | Joe Hall, Jr. | Permanent form-fitting, non-slip cover for handgripping portion of baseball bats, golf clubs and the like |
US4148482A (en) * | 1977-01-31 | 1979-04-10 | Charles R. Rhodes | Hockey stick reinforcing method and product |
US4848745A (en) * | 1986-06-04 | 1989-07-18 | Phillips Petroleum Company | Fiber reinforced article |
US5343776A (en) * | 1990-07-19 | 1994-09-06 | Cabot Corporation | Handle grip cover and process for making same |
US5653646A (en) * | 1994-10-28 | 1997-08-05 | Fujikura Rubber Ltd. | Golf club shaft and method of producing the same |
US6036610A (en) * | 1999-03-01 | 2000-03-14 | Anderson-Bridges Interests, Inc. | Reinforced baseball bat |
US6251034B1 (en) * | 1998-07-01 | 2001-06-26 | Wilson Sporting Goods Co. | Ball bat |
-
2001
- 2001-12-12 US US10/015,348 patent/US20020128095A1/en not_active Abandoned
-
2004
- 2004-11-12 US US10/987,127 patent/US20050064965A1/en not_active Abandoned
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1701856A (en) * | 1925-04-08 | 1929-02-12 | Kroydon Company | Handle grip and method of making the same |
US1617972A (en) * | 1925-08-26 | 1927-02-15 | Robert S Wallace | Grip for golf clubs |
US1917795A (en) * | 1930-09-18 | 1933-07-11 | Fetter Edward | Golf club structure |
US2984486A (en) * | 1959-02-05 | 1961-05-16 | Lloyd J Jones | Slip-proof sleeve for a baseball bat handle |
US3129003A (en) * | 1960-09-29 | 1964-04-14 | Mueller Perry Co Inc | Ball bat with reinforced handle |
US3115912A (en) * | 1960-10-28 | 1963-12-31 | Strucfural Fibers Inc | Tool handle |
US3147012A (en) * | 1961-11-14 | 1964-09-01 | Louis F Muccino | Slip resistant grip for handles of golf clubs |
US4012039A (en) * | 1973-07-13 | 1977-03-15 | Joe Hall, Jr. | Permanent form-fitting, non-slip cover for handgripping portion of baseball bats, golf clubs and the like |
US4148482A (en) * | 1977-01-31 | 1979-04-10 | Charles R. Rhodes | Hockey stick reinforcing method and product |
US4848745A (en) * | 1986-06-04 | 1989-07-18 | Phillips Petroleum Company | Fiber reinforced article |
US5343776A (en) * | 1990-07-19 | 1994-09-06 | Cabot Corporation | Handle grip cover and process for making same |
US5653646A (en) * | 1994-10-28 | 1997-08-05 | Fujikura Rubber Ltd. | Golf club shaft and method of producing the same |
US6251034B1 (en) * | 1998-07-01 | 2001-06-26 | Wilson Sporting Goods Co. | Ball bat |
US6036610A (en) * | 1999-03-01 | 2000-03-14 | Anderson-Bridges Interests, Inc. | Reinforced baseball bat |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8083619B1 (en) * | 2001-10-04 | 2011-12-27 | Sun Systems, Inc. | Practice bat and method for use |
US20080237937A1 (en) * | 2005-02-26 | 2008-10-02 | Ben Aaron | Means and Method for Producing Enhanced Object Gripping Surfaces and Enhancing Object Strength, and The Objects So Enhanced |
US20100323832A1 (en) * | 2005-02-26 | 2010-12-23 | Ben Aaron | Means and Method for Producing Sure-Grip Gripping Surfaces and The Objects So Enhanced |
US20090312126A1 (en) * | 2008-06-16 | 2009-12-17 | Giuseppe Totino | Reinforced baseball bat |
US20090325738A1 (en) * | 2008-06-25 | 2009-12-31 | Pryor Mark K | Baseball Bat |
US8241155B1 (en) * | 2008-10-16 | 2012-08-14 | American Coatings Corp. | Bat safety system |
US20130045823A1 (en) * | 2011-02-16 | 2013-02-21 | Robert Earl Sublett, SR. | Reinforced Wooden Baseball Bat and Method |
Also Published As
Publication number | Publication date |
---|---|
US20020128095A1 (en) | 2002-09-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6755757B2 (en) | Composite over-wrapped lightweight core and method | |
US6036610A (en) | Reinforced baseball bat | |
US5374059A (en) | Shock absorbing grip for racquets and the like | |
US8512175B2 (en) | Ball bat including a barrel portion having separate proximal and distal members | |
CN100441253C (en) | Adjusting stiffness and flexibility sports equipment | |
US20050064965A1 (en) | Shock absorbing baseball bat and method of manufacturing | |
CA1065362A (en) | Racket frames for tennis, badminton, squash, etc | |
MX2013009693A (en) | An unbalanced weighted apparatus with a heavy end and a light end. | |
AU2770700A (en) | Golf club shaft | |
US20100022334A1 (en) | Injection-molded ball bat | |
CA2041634C (en) | Badminton racquet | |
US7008339B2 (en) | Composite over-wrapped lightweight core | |
US20200290243A1 (en) | Hockey Stick | |
US20230233916A1 (en) | Shock Absorbing Structure of Racket | |
US20060156514A1 (en) | Auxiliary grip | |
US8795107B2 (en) | Symmetrical wood composite bat | |
JPH04263936A (en) | Shaft and frame structure | |
Lammer et al. | Materials and tennis rackets | |
US20160010769A1 (en) | Sport equipment | |
JP4362743B2 (en) | Racket frame | |
CN2200462Y (en) | Racket handle of compound material | |
JPH10295854A (en) | Sports instrument constituted of composite material provided with bias ply for which composite rods are scattered | |
GB2035099A (en) | Badminton racquet handles | |
JP3025637U (en) | Exercise equipment tube | |
GB2391486A (en) | Sports bat handle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |