US20100184540A1 - Ball bats - Google Patents
Ball bats Download PDFInfo
- Publication number
- US20100184540A1 US20100184540A1 US12/655,632 US65563210A US2010184540A1 US 20100184540 A1 US20100184540 A1 US 20100184540A1 US 65563210 A US65563210 A US 65563210A US 2010184540 A1 US2010184540 A1 US 2010184540A1
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- United States
- Prior art keywords
- bat
- handle
- stem
- knob
- barrel
- 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
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Classifications
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
- A63B60/16—Caps; Ferrules
Definitions
- the present invention relates to bats and, more particularly, to bats with components for:
- One such, highly effective approach to isolation from shock and noise reduction utilizes: (a) a component which has a barrel and an integrated stem axially aligned with the barrel; (b) a floating handle which surrounds and extends along the stem and may lap onto a transition section between the stem and barrel of the bat, and (c) a system which floats the handle and isolates a user's hands from the shock waves set up in the bat when it strikes a ball or a playing field or other surface.
- This system comprises one or more elastomeric decouplers (or isolators) installed between the stem and handle of the bat.
- Isolation from shock and noise reduction are accomplished by virtue of the system reducing the amplitude, and shortening the decay time, of the shock wave(s) by deflection.
- This term embraces the interrelated flexing of the bat stem and/or bat handle when a ball or surface is struck; the subsequent elastic restoration of those bat components to “at rest” configurations; and the stretching, twisting, elongation, bending, compression, and other motions of the decoupler(s) and bat stem and handle. Deflection dissipates shock wave energy which would otherwise reach the bat handle and then a user's hands.
- a separate damper component may optionally be secured around the stem of the bat at a location between the ends of the bat handle to reduce the sound made when the bat is struck against a hard surface.
- a DTMS damper embodying the principles of the present invention and employed alone, or in combination with either or both of the previously described damping mechanisms, is designed for bats which have a stem and a hollow knob at the proximate end of the stem.
- This damping mechanism has a head in the knob of the bat and may have an integral stem segment which extends into the stem of the bat.
- the DTMS damper shortens the decay time of shock and vibrations set up in the bat, which reduces the discomfort experienced by a user by shortening the time for which an unpleasant sensation lasts.
- the head of the DTMS damper be so positioned in the knob that the peripheral portions of the damper head are free to move in all directions in the knob of the bat without striking the inner surfaces of the knob. This may be accomplished, as examples only, by: (a) providing stand-off spacers on the head-facing top wall of the knob or by pinning the stem of the damper to the stem of the bat; (b) sizing the damper head and knob to provide a gap between the head and the side wall of the knob; and (c) tapering the underside of the damper head so that the head will not strike the bottom wall of the knob as the peripheral edge portions of the head move in the knob.
- a pressure relief system keeps hot gases generated in the knob as the knob is welded onto the stem of the bat from being pressurized, forced into, and weakening the weld.
- shock/vibration damping mechanism that can be used for the purposes disclosed herein either alone, or in combination with one or more of the other novel devices disclosed herein, is an elastomeric, progressive resistance wrap for the handle of the bat.
- This component has pillars protruding from one side of an integral substrate (or base).
- Optional recesses in the pillars open onto the exposed (or free) ends of the pillars. This gives the wrap a grip akin to that afforded by an octopus tentacle, a desirable attribute enhanced by a tendency of the “hollowed out” pillars to conform to the batter's hands.
- the hollowing out of the pillars may allow the pillars to compress and otherwise distort more rapidly with a consequent increase in damping effectiveness, a goal which is further promoted by pneumatic cushioning attributable to air trapped in the recesses of the pillars by a batter's hands.
- FIG. 1 is a side view of a bat embodying the principles of the present invention
- FIG. 2 is a longitudinal section through the FIG. 1 bat
- FIG. 3 is an enlarged scale fragment of FIG. 2 ;
- FIG. 3A is a view looking in the direction of arrows 3 A- 3 A in FIG. 3 ;
- FIG. 3B is an enlarged scale detail of the structures shown in FIG. 3 ;
- FIG. 4 is a second enlarged scale fragment of FIG. 2 ;
- FIG. 5 is an enlarged view of the barrel end of the FIG. 1 bat
- FIG. 6 is an exploded view of the FIG. 1 bat
- FIG. 7 is a fragmentary perspective of the FIG. 1 bat with an elastomeric wrap installed on the handle of the bat;
- FIG. 8 is an enlarged scale fragment of FIG. 7 ;
- FIG. 9 is a plan view of the FIG. 7 wrap
- FIG. 10 is an enlarged scale fragment of FIG. 9 ;
- FIGS. 11 and 12 are fragmentary sections through the handle ends of second and third bats embodying the principles of the present invention.
- FIG. 13 is a side view of a fourth, wooden bat embodying the principles of the present invention.
- FIG. 14 is a partial longitudinal section through the FIG. 13 bat
- FIG. 15 is a side view of a fifth bat embodying the principles of the present invention.
- FIG. 16 is a longitudinal section through the FIG. 15 bat
- FIG. 17 is a fragmentary section of a bat which embodies the principles of the present invention and is characterized by a knob-housed DIMS damper which does not have a stem;
- FIG. 18 is a fragmentary section through still another bat which embodies the principles of the present invention; this bat does not have a knob-housed DTMS damper.
- FIGS. 1-6 depict a bat 40 constructed in accord with, and embodying, the principles of the present invention.
- bat 40 The major components of bat 40 include a component 42 which comprises a hollow barrel 44 and an integral, hollow stem 46 extending from, and axially aligned with, barrel 44 .
- Component 42 can be fabricated from an aluminum, titanium, or other alloy or from any appropriate composite; for example, a polymeric material reinforced with glass-carbon fibers.
- the stem 46 of bat 40 is surrounded by a handle 48 .
- the handle extends from an end 50 near the proximate end 52 of stem 46 past the distal end 54 of the stem and laps onto the transition section 56 of barrel 44 .
- Handle 48 may, but does not necessarily have to be, fabricated from a glass, carbon, or glass-carbon composite.
- Annular, elastomeric decouplers 58 and 60 are installed between bat handle 48 and stem-barrel component 42 at opposite, proximate and distal ends 50 and 64 of the handle.
- the decouplers isolate handle 48 from barrel/stem component 42 , keeping shock (and to a significant extent other vibrations) from being transmitted to the batter's hands when a ball is struck. Consequently, the batter is not stung or otherwise subjected to pain or discomfort. This is perse advantageous and also improves performance by keeping the batter from flinching when swinging at a ball.
- Decoupler 58 has a rectangular cross-section, and decoupler 60 has a similar configuration with an integral, tapered projection 65 at an exposed end of that decoupler.
- Projection 65 engages and covers the distal end 64 of handle 48 ; and the exposed, tapered, transition surface of the projection enhances the appearance of bat 40 by covering up the end 64 of the handle and by providing an aesthetically-pleasing transition from the handle to the barrel 44 of the bat.
- the decouplers can be spaced inwardly from the ends of handle 48 . Three or more decouplers spaced along the handle can be employed, as can a single decoupler long enough to span an appreciable length of the handle.
- the handle 48 of bat 40 may be surrounded with an elastomeric wrap 68 to further block the transmission of deleterious vibrations from bat 40 to a batter's hands.
- Wrap 68 is trained around bat handle 48 in helical fashion to form the grip 70 shown in FIG. 7 .
- shock/vibration phenomena such as noise production and the minimization of discomfort can be materially reduced by shortening shock/vibration decay times.
- grip 70 is manufactured from a NAVCOM® or other suitable elastomeric material, energy transmitted to the bat handle 48 is dissipated by the stretching, bending, and other distortions of the device as it is impacted by shock/vibration.
- These physical, three-dimensional, elastic motions of the device collectively referred to by the judicially approved and construed term “wiggle and jiggle”—significantly shorten the shock/vibration decay time, making the dissipation of shock/vibration impact energy remarkably efficient.
- a significant gain in performance is achieved by the use of progressive resistance technology in wrap 68 .
- integral pillars 71 are formed on the exposed side of wrap substrate 72 . Continued deformation of the pillars results in progressively increasing resistance of the elastomeric material, significantly enhancing the shock/vibration damping performance of grip 70 .
- the pillars 71 may have the illustrated circular or an elliptical, square, triangular, or other configuration; and a combination of configurations can be employed in the same wrap.
- a strictly optional recess 73 is formed in each integral pillar of the exemplary wrap 68 . At one end, the recess opens onto that exposed end of the node opposite the substrate. The recess may extend through the substrate and open onto its opposite face, or it may have a blind inner end.
- Each pillar may have multiple open-ended recesses, and they may be of the through-bore or blind-end type or a mixture of those types.
- Vibration decay time modification leading to significantly shorter vibration/shock decay times and consequent mitigation of unwanted effects such as the prolonged stinging of a batter's hands is attributable to the novel pillars 71 discussed above.
- pillars 71 When a ball is struck and pressure is consequentially exerted on grip 70 , pillars 71 rapidly compress, deflect, and otherwise distort and offer progressively increased resistance to such motions. It is this rapid, progressive resistance and elastic deflection and distortion, bending, compression and stretching in combination with similar actions of substrate 72 that gives grip 70 its unique ability to mitigate the unwanted, adverse effects of vibrations and shocks.
- Grasping grip 70 produces suction akin to that of an octopus tentacle, improving the grasp of the bat afforded by the grip.
- the grasp is further enhanced by virtue of grip 70 conforming to the contour of the batter's hand due to that enhanced ability of the nodes 71 to deform and deflect attributable to the “hollowing out” of the pillars by the recesses in those elements.
- Damper 74 does not effect the amplitude of shock and vibrations set up in bat 40 , but does significantly shorten the decay times of those shocks and vibrations. As discussed above, this is beneficial because this shortens the time for which pain or other discomfort is felt by the user; and such discomfort rapidly increases with time even though the magnitude of the transmitted shock or vibrations remains the same.
- Damper 74 has a head 76 in the hollow knob 78 at the proximate end 52 of bat stem 46 and an integral damper stem 80 in the same end 52 of the bat stem.
- peripheral portion 81 of DIMS damper head 76 be free of contact with the top, bottom, and side walls 82 , 83 and 84 of knob 78 so the peripheral head portion can bend, stretch, flex, and otherwise wiggle and jiggle to shorten the decay times of shock and vibrations set up in the barre/stem component 42 of bat 40 and transferred to DTMS damper 74 when a ball is struck and thus alleviate the discomfort a batter might otherwise experience.
- this is accomplished so dimensioning damper head 76 relative to knob 78 as to provide a 360° gap 86 between the periphery 88 of damper head 76 and the side wall 84 of knob 78 .
- DIMS damper head 76 is kept free of knob top wall 82 by integral dimple elements 96 extending inwardly from the top knob wall 82 into contact with the upper side 98 of damper head 76 .
- These stand-off elements 96 are symmetrically spaced around, and near, the axial centerline 100 of DIMS damper 74 (see FIG. 3A ). Thus, they do not in any way interfere with the shock and vibration damping movements of damper head peripheral edge portion 81 .
- Knob 78 is assembled to the stem 46 of bat 40 by first welding an annular, shouldered attachment sleeve 102 to the proximate end 52 of the stem. Next, the knob 78 is slid onto attachment sleeve 102 until the bottom wall 83 of knob 78 butts against the shoulder 104 on sleeve 102 . The bottom knob wall 83 is welded to sleeve 102 .
- the welds are identified by reference characters 106 and 107 in FIG. 3B .
- the heat generated in the welding step raises the pressure on the air trapped In the hollow interior 108 of knob 78 by the stem 80 of DTMS damper 74 . Unless relieved, this pressure would force air from the knob interior into welds 106 and/or 107 , introducing porosity into and thereby weakening the welds.
- the pressure may be relieved by venting the trapped air into the very large volume provided by the hollow interior 109 of bat stem 46 and the even larger volume provided by the communicating hollow interior 110 of barrel 44 .
- the interior 108 of knob 78 is vented through centrally located, longitudinal vent passage 112 which extends seriatim through the head 76 and stem 80 of DTMS damper 74 .
- One end 114 of vent passage 112 opens onto the interior 108 of knob 78
- the opposite end 116 of the passage opens onto the hollow interior 109 of bat stem 46 .
- a loud, unpleasant sound may be generated when a bat as disclosed herein strikes a batter is rapped on the ground or other hard surface by virtue of the bat stem and bat handle flexing and coming into contact. It has been found that this sound can be reduced to an unobjectionable level by installing a sound-deadening buffer on the stem of the bat approximately midway between the ends of the bat handle.
- Bat 40 is equipped with an annular buffer 118 of this character. As shown in FIG. 4 , buffer 118 surrounds stem 46 . It is preferably fabricated from a NAVCOM® or other elastically deformable material with a sound damping capability and can be adhesively attached to the stem or held in place by friction. The thickness of buffer 118 is so selected as to leave a flexure accommodating space between the buffer and the handle 48 of bat 40 .
- bat 40 has a barrel cap 120 and a tubular, handle end spacer 122 .
- Barrel cap 120 is installed in the open, distal end 121 of barrel 44 .
- the end cap has a top wall 124 with a dished configuration and a circumferential ledge 128 which butts against distal barrel end 121 .
- a boss 130 on the inside of barrel 44 snaps into a complementary groove 132 in an integral, cylindrical side wall 134 of end cap 120 to retain the end cap in place, a goal furthered by bat groove/end cap lug set 135 .
- Spacer 122 surrounds the stem 46 of bat 40 and extends between: (a) the proximate end 64 of bat handle 48 and elastomeric decoupler 58 , and (b) the bottom wall 83 of knob 78 .
- the spacer overlaps that part of attachment sleeve 102 lying beyond the bottom knob wall.
- Spacer 122 completes the continuity of the outer bat handle surface 136 . This makes bat 40 comfortable to grip and, also, imparts an aesthetically-pleasing, finished appearance to the bat.
- FIG. 11 An alternate technique for spacing the damper head from the facing top wall of the knob is illustrated in FIG. 11 .
- a gap 142 between the upper side 98 of DIMS damper head 76 and the top wall 82 of knob 78 is maintained by fixing damper 74 against longitudinal, arrow 144 directions of movement relative to the knob.
- This is accomplished by a pin 146 which extends transversely through the stem 80 of damper 74 and opposite side wall segments 46 a and 46 b of bat stem 46 .
- Pin 146 is installed through an aperture 147 in knob attachment sleeve 102 and is seated in a blind aperture 148 on the opposite side of the sleeve. Friction and/or spacer 122 retain pin 146 in place.
- knob 78 is fixed relative to stem 46 by weld 106 , pin 146 consequentially fixes the head 76 of damper 74 in the desired, spaced relationship to the knob top wall 82 .
- knob 78 is assembled by welding it to an also welded in place stem-supported attachment sleeve and that the hollow interior of the knob is vented to keep hot gases generated in the welding steps from being forced into and weakening the welds. In that embodiment of the invention described above and realized in bat 40 , this is accomplished by venting space 108 to the communicating, large volume, hollow interiors of the bat stem 46 and bat barrel 44 .
- space 108 is instead vented directly to the surrounding environment through an aperture 149 in the top wall 82 of the knob.
- FIG. 12 A bat with yet another arrangement for venting the knob is depicted in FIG. 12 and identified by reference character 152 .
- a peripheral slot 154 extends the length of the stem 156 of DTMS damper 158 .
- This slot and bat stem 46 define a passageway between the interior 108 of knob 76 and the hollow interior 109 of bat stem 46 through which air can escape into the stem and communicating barrel of the bat as the temperature in knob interior 108 increases.
- FIG. 17 depicts bat 40 with a DTMS damper 159 which is configured like the head 76 of the damper 74 shown in FIG. 3 .
- Damper 159 is fixed in place by a centrally apertured spacer 161 faced on both sides with an appropriate adhesive (not shown).
- FIGS. 13 and 14 An exemplary wooden bat 162 embodying the principles of the present invention is illustrated in FIGS. 13 and 14 and identified by reference character 162 .
- This bat has a barrel 166 , a stem 168 , and a knob 170 .
- a handle 48 is installed on the stem 168 of the bat and isolated from the stem by elastomeric, distal and proximate end decouplers 60 and 174 .
- Decoupler 60 is discussed above.
- Decoupler 174 is installed in the proximate end 50 of handle 48 . It has a segment 178 forming a shoulder 180 against which the handle is butted.
- the enlarged diameter segment 178 of decoupler 174 butts against the knob 170 of bat 162 , making the bat comfortable to grip and giving it a finished, aesthetically-pleasing appearance in much the same manner that the above-discussed handle end spacer does.
- Decoupler 174 may first be assembled to bat knob 170 , and the decoupler with the knob attached then installed between the stem 46 and handle 48 of the bat 174 .
- FIGS. 15 and 16 depict a bat 182 without those features, but with the handle and decoupler arrangement which isolates the batter from shocks and other vibrations set up in the bat when the ball is struck or the bat is rapped against a solid surface.
- Bats such as those identified by reference character 40 have a hole 180 in the bottom wall of knob 78 .
- the DTMS damper 74 is installed in knob 78 through that hole. This requires a hole larger than the diameter of bat stem 46 , and above-discussed attachment sleeve 102 is employed to fill the gap between stem 46 and the bottom wall 83 of the knob.
- the attachment sleeve can be omitted, the hole in the knob bottom wall 83 sized to closely fit”* stem 46 , and the knob welded directly to the bat stem.
- FIG. 18 A bat so constructed is shown in FIG. 18 and identified by reference character 184 .
- the weld securing knob 78 to bat stem 46 is identified by reference character 186 .
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- Physical Education & Sports Medicine (AREA)
- Vibration Dampers (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
- This application is a continuation of copending application Ser. No. 11/880,482 which is copending with provisional applications Nos. 60/832,527 filed 20 Jul. 2006; 60/832,556 filed 20 Jul. 2006; 60/832,562 filed 20 Jul. 2006; and 60/837,904 filed 14 Aug. 2006. The benefits of the filing dates of the above-cited applications are claimed.
- The present invention relates to bats and, more particularly, to bats with components for:
- (a) protecting a batter against sting and other unpleasant sensations by isolating the handle of the bat from shocks and vibrations set up in the bat when a ball is struck, and/or (b) reducing to an unobjectionable level the unpleasant sound made when a bat is struck against a ball or a hard surface.
- A host of ball bats with shock and vibration damping and sound-arresting features have been invented and made commercially available and/or described in the patent literature. Among the U.S. patents disclosing such bats are U.S. Pat. No. 3,703,290 to Wilson: U.S. Pat. No. 3,727,295 to Gildemeister. U.S. Pat. No. 3,811,596 to Wilson: U.S. Pat. No. 3,861,682 to Fujir, U.S. Pat. No. 3,941,380 to Lacoste: U.S. Pat. No. 5,180,163 to Lanctoi et al. U.S. Pat. No. 5,219,164 to MacKay. Jr.; U.S. Pat. No. 5,931,750 to MacKay. Jr.; U.S. Pat. No. 6,872,157 to Falone. et al. U.S. Pat. No. 5,785,617 to MacKay. Jr.: U.S. Pat. No. 6,007,439 to MacKay. Jr.; and U.S. Pat. No. 7,004,871 to Sutherland, et al.
- Notwithstanding all of the effort that has been devoted to shock/vibration damping and sound reduction, there is a continuing and existent demand for bats which exhibit improved performance in these areas.
- Such bats have now been invented, and they are disclosed herein.
- A number of novel features, disclosed herein, may be employed alone and in various combinations to provide shock/vibration damping and noise reduction.
- One such, highly effective approach to isolation from shock and noise reduction utilizes: (a) a component which has a barrel and an integrated stem axially aligned with the barrel; (b) a floating handle which surrounds and extends along the stem and may lap onto a transition section between the stem and barrel of the bat, and (c) a system which floats the handle and isolates a user's hands from the shock waves set up in the bat when it strikes a ball or a playing field or other surface. This system comprises one or more elastomeric decouplers (or isolators) installed between the stem and handle of the bat. Isolation from shock and noise reduction are accomplished by virtue of the system reducing the amplitude, and shortening the decay time, of the shock wave(s) by deflection. This term embraces the interrelated flexing of the bat stem and/or bat handle when a ball or surface is struck; the subsequent elastic restoration of those bat components to “at rest” configurations; and the stretching, twisting, elongation, bending, compression, and other motions of the decoupler(s) and bat stem and handle. Deflection dissipates shock wave energy which would otherwise reach the bat handle and then a user's hands.
- A separate damper component may optionally be secured around the stem of the bat at a location between the ends of the bat handle to reduce the sound made when the bat is struck against a hard surface.
- A DTMS damper embodying the principles of the present invention and employed alone, or in combination with either or both of the previously described damping mechanisms, is designed for bats which have a stem and a hollow knob at the proximate end of the stem. This damping mechanism has a head in the knob of the bat and may have an integral stem segment which extends into the stem of the bat.
- The DTMS damper shortens the decay time of shock and vibrations set up in the bat, which reduces the discomfort experienced by a user by shortening the time for which an unpleasant sensation lasts.
- It is important that the head of the DTMS damper be so positioned in the knob that the peripheral portions of the damper head are free to move in all directions in the knob of the bat without striking the inner surfaces of the knob. This may be accomplished, as examples only, by: (a) providing stand-off spacers on the head-facing top wall of the knob or by pinning the stem of the damper to the stem of the bat; (b) sizing the damper head and knob to provide a gap between the head and the side wall of the knob; and (c) tapering the underside of the damper head so that the head will not strike the bottom wall of the knob as the peripheral edge portions of the head move in the knob.
- A pressure relief system keeps hot gases generated in the knob as the knob is welded onto the stem of the bat from being pressurized, forced into, and weakening the weld.
- Yet another shock/vibration damping mechanism that can be used for the purposes disclosed herein either alone, or in combination with one or more of the other novel devices disclosed herein, is an elastomeric, progressive resistance wrap for the handle of the bat. This component has pillars protruding from one side of an integral substrate (or base). Optional recesses in the pillars open onto the exposed (or free) ends of the pillars. This gives the wrap a grip akin to that afforded by an octopus tentacle, a desirable attribute enhanced by a tendency of the “hollowed out” pillars to conform to the batter's hands. In addition, the hollowing out of the pillars may allow the pillars to compress and otherwise distort more rapidly with a consequent increase in damping effectiveness, a goal which is further promoted by pneumatic cushioning attributable to air trapped in the recesses of the pillars by a batter's hands.
- The objects, features, and advantages of the invention will be apparent to the reader from the foregoing and the appended claims and as the ensuing detailed discussion and description proceeds in conjunction with the accompanying drawings.
-
FIG. 1 is a side view of a bat embodying the principles of the present invention; -
FIG. 2 is a longitudinal section through theFIG. 1 bat; -
FIG. 3 is an enlarged scale fragment ofFIG. 2 ; -
FIG. 3A is a view looking in the direction ofarrows 3A-3A inFIG. 3 ; -
FIG. 3B is an enlarged scale detail of the structures shown inFIG. 3 ; -
FIG. 4 is a second enlarged scale fragment ofFIG. 2 ; -
FIG. 5 is an enlarged view of the barrel end of theFIG. 1 bat; -
FIG. 6 is an exploded view of theFIG. 1 bat; -
FIG. 7 is a fragmentary perspective of theFIG. 1 bat with an elastomeric wrap installed on the handle of the bat; -
FIG. 8 is an enlarged scale fragment ofFIG. 7 ; -
FIG. 9 is a plan view of theFIG. 7 wrap; -
FIG. 10 is an enlarged scale fragment ofFIG. 9 ; -
FIGS. 11 and 12 are fragmentary sections through the handle ends of second and third bats embodying the principles of the present invention; -
FIG. 13 is a side view of a fourth, wooden bat embodying the principles of the present invention; -
FIG. 14 is a partial longitudinal section through theFIG. 13 bat; -
FIG. 15 is a side view of a fifth bat embodying the principles of the present invention; -
FIG. 16 is a longitudinal section through theFIG. 15 bat; -
FIG. 17 is a fragmentary section of a bat which embodies the principles of the present invention and is characterized by a knob-housed DIMS damper which does not have a stem; and -
FIG. 18 is a fragmentary section through still another bat which embodies the principles of the present invention; this bat does not have a knob-housed DTMS damper. - Referring now to the drawings,
FIGS. 1-6 depict abat 40 constructed in accord with, and embodying, the principles of the present invention. - The major components of
bat 40 include acomponent 42 which comprises ahollow barrel 44 and an integral,hollow stem 46 extending from, and axially aligned with,barrel 44.Component 42 can be fabricated from an aluminum, titanium, or other alloy or from any appropriate composite; for example, a polymeric material reinforced with glass-carbon fibers. - The
stem 46 ofbat 40 is surrounded by ahandle 48. The handle extends from anend 50 near theproximate end 52 ofstem 46 past thedistal end 54 of the stem and laps onto thetransition section 56 ofbarrel 44.Handle 48 may, but does not necessarily have to be, fabricated from a glass, carbon, or glass-carbon composite. - Annular,
elastomeric decouplers barrel component 42 at opposite, proximate anddistal ends handle 48 from barrel/stem component 42, keeping shock (and to a significant extent other vibrations) from being transmitted to the batter's hands when a ball is struck. Consequently, the batter is not stung or otherwise subjected to pain or discomfort. This is perse advantageous and also improves performance by keeping the batter from flinching when swinging at a ball. -
Decoupler 58 has a rectangular cross-section, anddecoupler 60 has a similar configuration with an integral,tapered projection 65 at an exposed end of that decoupler.Projection 65 engages and covers thedistal end 64 ofhandle 48; and the exposed, tapered, transition surface of the projection enhances the appearance ofbat 40 by covering up theend 64 of the handle and by providing an aesthetically-pleasing transition from the handle to thebarrel 44 of the bat. As discussed above, it is not essential that the illustrated arrangement of two decouplers, one located at each end of the bat handle 48 be employed. The decouplers can be spaced inwardly from the ends ofhandle 48. Three or more decouplers spaced along the handle can be employed, as can a single decoupler long enough to span an appreciable length of the handle. - As is shown in
FIGS. 7 and 8 , thehandle 48 ofbat 40 may be surrounded with anelastomeric wrap 68 to further block the transmission of deleterious vibrations frombat 40 to a batter's hands.Wrap 68, best shown inFIGS. 7 and 9 , is trained around bat handle 48 in helical fashion to form thegrip 70 shown inFIG. 7 . - The adverse effects of shock/vibration phenomena such as noise production and the minimization of discomfort can be materially reduced by shortening shock/vibration decay times. Because
grip 70 is manufactured from a NAVCOM® or other suitable elastomeric material, energy transmitted to the bat handle 48 is dissipated by the stretching, bending, and other distortions of the device as it is impacted by shock/vibration. These physical, three-dimensional, elastic motions of the device—collectively referred to by the judicially approved and construed term “wiggle and jiggle”—significantly shorten the shock/vibration decay time, making the dissipation of shock/vibration impact energy remarkably efficient. - A significant gain in performance is achieved by the use of progressive resistance technology in
wrap 68. To this end,integral pillars 71 are formed on the exposed side ofwrap substrate 72. Continued deformation of the pillars results in progressively increasing resistance of the elastomeric material, significantly enhancing the shock/vibration damping performance ofgrip 70. - The
pillars 71 may have the illustrated circular or an elliptical, square, triangular, or other configuration; and a combination of configurations can be employed in the same wrap. A strictlyoptional recess 73 is formed in each integral pillar of theexemplary wrap 68. At one end, the recess opens onto that exposed end of the node opposite the substrate. The recess may extend through the substrate and open onto its opposite face, or it may have a blind inner end. Each pillar may have multiple open-ended recesses, and they may be of the through-bore or blind-end type or a mixture of those types. - Vibration decay time modification leading to significantly shorter vibration/shock decay times and consequent mitigation of unwanted effects such as the prolonged stinging of a batter's hands is attributable to the
novel pillars 71 discussed above. When a ball is struck and pressure is consequentially exerted ongrip 70,pillars 71 rapidly compress, deflect, and otherwise distort and offer progressively increased resistance to such motions. It is this rapid, progressive resistance and elastic deflection and distortion, bending, compression and stretching in combination with similar actions ofsubstrate 72 that givesgrip 70 its unique ability to mitigate the unwanted, adverse effects of vibrations and shocks. -
Grasping grip 70 produces suction akin to that of an octopus tentacle, improving the grasp of the bat afforded by the grip. The grasp is further enhanced by virtue ofgrip 70 conforming to the contour of the batter's hand due to that enhanced ability of thenodes 71 to deform and deflect attributable to the “hollowing out” of the pillars by the recesses in those elements. - Another device that can be used independently, or with any or all of the other damper devices disclosed herein, to keep a batter from experiencing pain or discomfort when a ball is struck is the elastomeric DIMS damper illustrated in
FIGS. 2 and 3 and identified byreference character 74.Damper 74 does not effect the amplitude of shock and vibrations set up inbat 40, but does significantly shorten the decay times of those shocks and vibrations. As discussed above, this is beneficial because this shortens the time for which pain or other discomfort is felt by the user; and such discomfort rapidly increases with time even though the magnitude of the transmitted shock or vibrations remains the same. -
Damper 74 has ahead 76 in thehollow knob 78 at theproximate end 52 of bat stem 46 and an integral damper stem 80 in thesame end 52 of the bat stem. - It is important that the
peripheral portion 81 ofDIMS damper head 76 be free of contact with the top, bottom, andside walls knob 78 so the peripheral head portion can bend, stretch, flex, and otherwise wiggle and jiggle to shorten the decay times of shock and vibrations set up in the barre/stem component 42 ofbat 40 and transferred toDTMS damper 74 when a ball is struck and thus alleviate the discomfort a batter might otherwise experience. In the lateral or transverse direction this is accomplished sodimensioning damper head 76 relative toknob 78 as to provide a 360°gap 86 between the periphery 88 ofdamper head 76 and theside wall 84 ofknob 78. - The requisite clearance between the damper
head edge portion 81 and thebottom wall 83 ofknob 78 is obtained by tapering the underside 90 of damper headperipheral edge portion 81 from theinner boundary 92 of the edge portion to alocation 94 near the periphery 88 of the head as is best shown inFIG. 3 -
DIMS damper head 76 is kept free of knobtop wall 82 byintegral dimple elements 96 extending inwardly from thetop knob wall 82 into contact with theupper side 98 ofdamper head 76. These stand-offelements 96 are symmetrically spaced around, and near, theaxial centerline 100 of DIMS damper 74 (seeFIG. 3A ). Thus, they do not in any way interfere with the shock and vibration damping movements of damper headperipheral edge portion 81. -
Knob 78 is assembled to thestem 46 ofbat 40 by first welding an annular, shoulderedattachment sleeve 102 to theproximate end 52 of the stem. Next, theknob 78 is slid ontoattachment sleeve 102 until thebottom wall 83 ofknob 78 butts against theshoulder 104 onsleeve 102. Thebottom knob wall 83 is welded tosleeve 102. The welds are identified byreference characters FIG. 3B . - The heat generated in the welding step raises the pressure on the air trapped In the
hollow interior 108 ofknob 78 by thestem 80 ofDTMS damper 74. Unless relieved, this pressure would force air from the knob interior intowelds 106 and/or 107, introducing porosity into and thereby weakening the welds. - In accord with the present invention, the pressure may be relieved by venting the trapped air into the very large volume provided by the
hollow interior 109 of bat stem 46 and the even larger volume provided by the communicatinghollow interior 110 ofbarrel 44. Specifically, theinterior 108 ofknob 78 is vented through centrally located,longitudinal vent passage 112 which extends seriatim through thehead 76 and stem 80 ofDTMS damper 74. Oneend 114 ofvent passage 112 opens onto theinterior 108 ofknob 78, and the opposite end 116 of the passage opens onto thehollow interior 109 ofbat stem 46. Thus, and because of the above-discussed spaces between the external surfaces ofDTMS damper head 76 and the facing surfaces ofdamper walls entire interior 108 ofknob 78 is communicated with the large volume encompassed by bat stem andbarrel interiors weld 106 is avoided. - A loud, unpleasant sound may be generated when a bat as disclosed herein strikes a batter is rapped on the ground or other hard surface by virtue of the bat stem and bat handle flexing and coming into contact. It has been found that this sound can be reduced to an unobjectionable level by installing a sound-deadening buffer on the stem of the bat approximately midway between the ends of the bat handle.
Bat 40 is equipped with anannular buffer 118 of this character. As shown inFIG. 4 , buffer 118 surroundsstem 46. It is preferably fabricated from a NAVCOM® or other elastically deformable material with a sound damping capability and can be adhesively attached to the stem or held in place by friction. The thickness ofbuffer 118 is so selected as to leave a flexure accommodating space between the buffer and thehandle 48 ofbat 40. - In addition to the components discussed above,
bat 40 has abarrel cap 120 and a tubular, handleend spacer 122. -
Barrel cap 120 is installed in the open,distal end 121 ofbarrel 44. The end cap has atop wall 124 with a dished configuration and acircumferential ledge 128 which butts againstdistal barrel end 121. Aboss 130 on the inside ofbarrel 44 snaps into acomplementary groove 132 in an integral,cylindrical side wall 134 ofend cap 120 to retain the end cap in place, a goal furthered by bat groove/end cap lug set 135. -
Spacer 122 surrounds thestem 46 ofbat 40 and extends between: (a) theproximate end 64 of bat handle 48 andelastomeric decoupler 58, and (b) thebottom wall 83 ofknob 78. The spacer overlaps that part ofattachment sleeve 102 lying beyond the bottom knob wall. -
Spacer 122 completes the continuity of the outer bat handlesurface 136. This makesbat 40 comfortable to grip and, also, imparts an aesthetically-pleasing, finished appearance to the bat. - It was pointed out above that, for a knob-housed DTMS damper to function properly, the peripheral edge portion of the damper head must be able to move freely in the knob in which it is installed. This requires that the head of the damper be isolated from the facing top wall of the knob. As was also discussed above in conjunction with
bat 40, this can be accomplished by providing a set of stand-off, gap-providing projections or dimples on the top wall of the knob. These dimples engage the facing surface of the damper head, spacing that damper element from the knob. - An alternate technique for spacing the damper head from the facing top wall of the knob is illustrated in
FIG. 11 . - In describing the
FIG. 11 embodiment of the present invention and in the descriptions of additional embodiments which follow, common elements and components are identified by the same reference characters. - In the
bat 140 depicted inFIG. 11 , agap 142 between theupper side 98 ofDIMS damper head 76 and thetop wall 82 ofknob 78 is maintained by fixingdamper 74 against longitudinal,arrow 144 directions of movement relative to the knob. This is accomplished by apin 146 which extends transversely through thestem 80 ofdamper 74 and oppositeside wall segments bat stem 46.Pin 146 is installed through anaperture 147 inknob attachment sleeve 102 and is seated in ablind aperture 148 on the opposite side of the sleeve. Friction and/orspacer 122retain pin 146 in place. - As
knob 78 is fixed relative to stem 46 byweld 106, pin 146 consequentially fixes thehead 76 ofdamper 74 in the desired, spaced relationship to the knobtop wall 82. - It was also pointed out above that
knob 78 is assembled by welding it to an also welded in place stem-supported attachment sleeve and that the hollow interior of the knob is vented to keep hot gases generated in the welding steps from being forced into and weakening the welds. In that embodiment of the invention described above and realized inbat 40, this is accomplished by ventingspace 108 to the communicating, large volume, hollow interiors of thebat stem 46 andbat barrel 44. - In the
bat 140 shown inFIG. 11 ,space 108 is instead vented directly to the surrounding environment through an aperture 149 in thetop wall 82 of the knob. - A bat with yet another arrangement for venting the knob is depicted in
FIG. 12 and identified byreference character 152. In this bat, aperipheral slot 154 extends the length of thestem 156 ofDTMS damper 158. This slot and bat stem 46 define a passageway between the interior 108 ofknob 76 and thehollow interior 109 of bat stem 46 through which air can escape into the stem and communicating barrel of the bat as the temperature inknob interior 108 increases. - It is not essential that a knob-housed DTMS damper have a stem as long as the head of the damper is fixed in place in
knob 78. As a single example,FIG. 17 depictsbat 40 with aDTMS damper 159 which is configured like thehead 76 of thedamper 74 shown inFIG. 3 .Damper 159 is fixed in place by a centrallyapertured spacer 161 faced on both sides with an appropriate adhesive (not shown). - Principles of the present invention can also be employed to advantage in solid, wooden bats as well as in the hollow, metal and composite bats discussed above. An exemplary
wooden bat 162 embodying the principles of the present invention is illustrated inFIGS. 13 and 14 and identified byreference character 162. This bat has a barrel 166, astem 168, and aknob 170. Ahandle 48 is installed on thestem 168 of the bat and isolated from the stem by elastomeric, distal andproximate end decouplers Decoupler 60 is discussed above.Decoupler 174 is installed in theproximate end 50 ofhandle 48. It has a segment 178 forming ashoulder 180 against which the handle is butted. The enlarged diameter segment 178 ofdecoupler 174 butts against theknob 170 ofbat 162, making the bat comfortable to grip and giving it a finished, aesthetically-pleasing appearance in much the same manner that the above-discussed handle end spacer does. -
Decoupler 174 may first be assembled tobat knob 170, and the decoupler with the knob attached then installed between thestem 46 and handle 48 of thebat 174. - It was furthermore pointed out above that enhancements such as a knob-housed DTMS damper and a sound-deading buffer do not have to be employed in bats constructed in accord with the principles of the present invention. Thus,
FIGS. 15 and 16 depict abat 182 without those features, but with the handle and decoupler arrangement which isolates the batter from shocks and other vibrations set up in the bat when the ball is struck or the bat is rapped against a solid surface. - Bats such as those identified by
reference character 40 have ahole 180 in the bottom wall ofknob 78. TheDTMS damper 74 is installed inknob 78 through that hole. This requires a hole larger than the diameter ofbat stem 46, and above-discussedattachment sleeve 102 is employed to fill the gap betweenstem 46 and thebottom wall 83 of the knob. - In those embodiments of the invention which do not employ a knob-housed damper, such as the
bat 182 shown inFIGS. 15 and 16 , the attachment sleeve can be omitted, the hole in theknob bottom wall 83 sized to closely fit”*stem 46, and the knob welded directly to the bat stem. - A bat so constructed is shown in
FIG. 18 and identified byreference character 184. Theweld securing knob 78 tobat stem 46 is identified byreference character 186. - The principles of the present invention may be embodied in forms other than those specifically disclosed herein. Therefore, the present embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced herein
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/655,632 US20100184540A1 (en) | 2006-07-20 | 2010-01-04 | Ball bats |
US13/066,109 US8083620B2 (en) | 2006-07-20 | 2011-04-06 | Ball bats |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83255606P | 2006-07-20 | 2006-07-20 | |
US83256206P | 2006-07-20 | 2006-07-20 | |
US83252706P | 2006-07-20 | 2006-07-20 | |
US83790406P | 2006-08-14 | 2006-08-14 | |
US11/880,482 US20080085792A1 (en) | 2006-07-20 | 2007-07-19 | Ball bats |
US12/655,632 US20100184540A1 (en) | 2006-07-20 | 2010-01-04 | Ball bats |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/880,482 Continuation US20080085792A1 (en) | 2006-07-20 | 2007-07-19 | Ball bats |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US13/066,109 Continuation US8083620B2 (en) | 2006-07-20 | 2011-04-06 | Ball bats |
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US20100184540A1 true US20100184540A1 (en) | 2010-07-22 |
Family
ID=39275392
Family Applications (3)
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US11/880,482 Abandoned US20080085792A1 (en) | 2006-07-20 | 2007-07-19 | Ball bats |
US12/655,632 Abandoned US20100184540A1 (en) | 2006-07-20 | 2010-01-04 | Ball bats |
US13/066,109 Expired - Fee Related US8083620B2 (en) | 2006-07-20 | 2011-04-06 | Ball bats |
Family Applications Before (1)
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US11/880,482 Abandoned US20080085792A1 (en) | 2006-07-20 | 2007-07-19 | Ball bats |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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US13/066,109 Expired - Fee Related US8083620B2 (en) | 2006-07-20 | 2011-04-06 | Ball bats |
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US (3) | US20080085792A1 (en) |
Cited By (2)
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US20090280932A1 (en) * | 2008-05-07 | 2009-11-12 | Robert Tinti | Hand implement vibration isolation system |
US20150238832A1 (en) * | 2014-02-21 | 2015-08-27 | TRIAD SPORTS, INC. dba BOWNET | Sports device with robust marking |
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US20120100927A1 (en) * | 2008-04-08 | 2012-04-26 | Martin John Lenzini | Inhibiting vibration in sports equipment and hand tools |
US8425353B2 (en) * | 2010-11-19 | 2013-04-23 | Nike, Inc. | Customizable bat |
TWM436479U (en) * | 2012-03-26 | 2012-09-01 | min-ru Zhong | Baseball bat allowing batting zone change |
US9227120B2 (en) * | 2013-01-02 | 2016-01-05 | Matthew J. McTamaney | Cover for handle grip |
US9308424B2 (en) * | 2013-01-24 | 2016-04-12 | Wilson Sporting Goods Co. | Bat customization system |
US9731179B2 (en) | 2013-01-24 | 2017-08-15 | Wilson Sporting Goods Co. | Bat customization system |
US10387930B2 (en) | 2013-01-24 | 2019-08-20 | Wilson Sporting Goods Co. | Bat customization system |
US9956464B2 (en) | 2013-01-24 | 2018-05-01 | Wilson Sporting Goods Co. | Ball bat barrel with luminescent interior |
US9511267B2 (en) | 2013-01-24 | 2016-12-06 | Wilson Sporting Goods Co. | Bat customization system |
US9586111B2 (en) * | 2013-03-12 | 2017-03-07 | Easton Baseball / Softball Inc. | Sporting-good implement with rotatable handle |
US9248355B2 (en) | 2013-03-12 | 2016-02-02 | Easton Baseball/Softball Inc. | Sporting-good implement with rotatable handle |
USD734414S1 (en) * | 2013-03-14 | 2015-07-14 | Jon Allen Raskin | Bat grip |
US20150157909A1 (en) * | 2013-12-09 | 2015-06-11 | Thu Van Nguyen | Vibration damper end knob for baseball and softball bats |
US9220962B2 (en) * | 2013-12-09 | 2015-12-29 | Thu Van Nguyen | Double wall bat and process for manufacturing same |
US20150196816A1 (en) * | 2014-01-16 | 2015-07-16 | Easton Sports, Inc. | Ball bat with a fused end cap |
US9457248B2 (en) | 2014-06-24 | 2016-10-04 | Easton Baseball/Softball Inc. | Removable, rotatable grip element for a ball bat or other sporting-good implement |
US11602680B1 (en) | 2019-09-20 | 2023-03-14 | Baden Sports, Inc. | Ball bat with handle having lightening structures |
US20210236894A1 (en) * | 2020-01-30 | 2021-08-05 | Agustin Gonzalez | Compression sleeve wrap and reinforced methodology for a wood bat |
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Cited By (3)
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---|---|---|---|---|
US20090280932A1 (en) * | 2008-05-07 | 2009-11-12 | Robert Tinti | Hand implement vibration isolation system |
US8998753B2 (en) * | 2008-05-07 | 2015-04-07 | Robert Tinti | Hand implement vibration isolation system |
US20150238832A1 (en) * | 2014-02-21 | 2015-08-27 | TRIAD SPORTS, INC. dba BOWNET | Sports device with robust marking |
Also Published As
Publication number | Publication date |
---|---|
US20110281673A1 (en) | 2011-11-17 |
US20080085792A1 (en) | 2008-04-10 |
US8083620B2 (en) | 2011-12-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SIMS VIBRATION LABORATORY, INC., WASHINGTON Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SIMS, STEVEN C.;SIMS, GARY;WINTERS, GREG;AND OTHERS;REEL/FRAME:024082/0147 Effective date: 20100302 |
|
AS | Assignment |
Owner name: SIMS VIBRATION LABORATORY, INC., WASHINGTON Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SIMS, STEVEN C.;SIMS, GARY;WINTERS, GREG;AND OTHERS;REEL/FRAME:024178/0618 Effective date: 20100302 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |