INERTIALLY RESPONSIVE GOLF CLUB HEAD MOUNTED DEVICE FOR INSTRUCTING CORRECT CLUB FACE DIRECTION & SWING SPEED
A device for a golf club for instructing club face orientation for a selected swing speed including a body with a selected thickness and such that a substantially pointed forward end thereof intersects a midpoint of the club contact face and in a perpendicularly extending direction relative to a coplanar axis extending across the club contact face. An adhesive tacky material applied to an underside surface of the body engaging the body to a top surface of the club head. A processor communicates with an inertially sensitive cam shaped member rotatably mounted within a location of the body. A swing speed adjustment knob is in operative communication with the body and in contact with the inertially sensitive element via an adjustment spring. An audio-generating transistor and a plurality of LED elements cooperate with the processor for instructing a correct planar orientation of a contacting face of the club head relative to the golf ball.
Not applicable.
FIELD OF THE INVENTIONThe present invention relates generally to golf swing instructional device. More particularly, the present invention teaches a self-contained device securable to a conventional club head and which incorporates inertially adjustable parameters, based primarily upon desired club swing speed, in order to instruct correct club face orientation relative to a golf ball to be struck.
DESCRIPTION OF PRIOR ARTThe prior art is well documented with examples of golf club swing training devices. The objective in each instance is to attempt to instruct a golfer in the proper technique associated with a golf swing, and in the hope of assisting a user in more completely connecting with a golf ball and driving the ball straighter and for longer distances.
U.S. Pat. No. 6,913,542, issued to Hu et al., discloses a golf club for showing swing condition having a shaft and a connected head with a striking face. Also illustrated is a battery powered and visible illuminant mounted on the head and exposed outside with an upward angles A centrifugal switch is actuated by applying a centrifugal force and is mounted on the club head opposite the striking face for controlling a circuit between the battery and the illuminant. In this fashion, the illuminant will light upon application of a predetermined strength centrifugal force during swinging of the golf club for investigating the body harmony and strength-exerting condition of a golfer.
Other dynamic and velocity related measuring devices referenced include U.S. Patent Application Publication No. 2002/0173364, to Boscha, incorporating three force sensors built into a club head, a main electronic unit build into a shaft or grip, and a remotely positioned data acquisition, processing and displaying unit connected with the electronic units within the club via IR or RF transmitters. The information collected from the force sensors is employed to construct a dynamic analysis of swings and hits to correlate the results the results with actual movements of the ball, such being, presented in display, graphical or digital form.
International Publication No. WO 2004/028649 teaches an apparatus for measuring swing velocity of a golf club head, as well as an advertising apparatus for golf training including the same, and which further employs a pair of magnetic sensors at different head and shah locations. These interface with a micro controller and display for calculating and outputting either of a swing velocity and/or flying distance of the golf ball.
A further collection of pseudo club shaped golf swing training devices are illustrated in Wurster. U.S. Pat. No. 6,254,493, McGinty, U.S. Publication No. 2003/0032494 and Daechsel, U.S. Pat. No. 5,161,802. McGinty teaches a plurality of optical sensors adjacent a club face for detecting contact between the face and the golf ball, as well as electronics mounted within the head for processing the signals from the sensor for analyzing at least the location of the contact between the face and ball. The electronics further analyze whether the ball is tending to slice or hook by detecting lateral movement of the ball during contact with the club face
Wurster and Daechsel both teach golf swing practice devices (non functioning golf clubs) each including a weighted head portion attached to an elongated shaft. In the case of Wurster, a first laser module is mounted in the grip end of the shaft and directs a laser beam upwardly from the (rip in coaxial alignment with the central axis of the shaft. A further pair of laser modules are mounted in the head of the training device for directing a pair of spaced parallel laser beams downwardly from the head in diametrically opposed direction from the beam emanating from the grip. The two beams projecting from the head are disposed in a common plane with a downward extension of the central axis of the shaft, such that a line drawn between the points of impact of the beams on the ground visually defines the footprint and thus the angular orientation of an imaginary club face.
Finally, Daechsel teaches another type of golf practice device exhibiting a shortened shaft with unique head weighted to equal the swing of a regular sized club. The head contains a battery for a light, which is centrally mounted with lens and iris to produce a focused, rectangular spot of light, parallel to the shaft center line. A combination level-and-centrifugal switch turns on the light spot when the shaft is level at the start of the down swing, and also as the head travels through the bottom of the swing. The rectangular light beam shows the path of the swing through a target ball, allowing the user to check the accuracy of the swing as well as the squareness of the club head to a target line. The target further comprises a golf ball with electronic receivers on either side in a straight line. The visual light path shows the direction of the swing, and the sound from the electronic receiver indicates to the golfer when a precise swing has been achieved. As repeat accuracy improves with practice, the light beam can be narrowed by adjusting the iris for still greater accuracy.
SUMMARY OF THE INVENTIONThe present invention teaches a device for a golf club for instructing club face orientation for a selected swing speed and in order to teach club head positioning and control for a selected swing tempo. The body housing has a selected thickness and such that a substantially pointed forward end thereof intersects a midpoint of the club contact face and in a perpendicularly extending direction relative to a coplanar axis extending across the club contact face. As will be described with reference to the several succeeding embodiments, the inertially responsive device is capable of being incorporated into any of a wood/driver, iron or putter variant.
In one variant, an adhesive tacky material applied to an underside surface of the body engages the body to a top surface of the club head. An on-board processor draws power from a portable power supply (e.g. lithium style 3 v battery) and is communicated with an inertially sensitive cam shaped member rotatably mounted within a location of the body.
Based upon a preferred variant of the design, either or both of swing/tempo speed and directional/target adjustment features are built into the body. A first variant incorporates both of these features and first includes a swing speed adjustment knob mounted in exposed fashion relative to an upper surface of the body and in contact with the inertially sensitive element via an adjustment spring. An audio-generating transistor and a plurality of LED elements cooperate can operate in a purely mechanical fashion according to one preferred embodiment or, in a desired variant, are communicable with the processor for instructing a correct planar orientation of a contacting face of the club head relative to the golf ball.
Additional features include a speed sensor contact post secured to an extending end of the adjustable spring, an opposite end of the spring fixedly securing at a forward location of the body and, depending upon forward or rearward adjustment of the post establishing a desired swing speed. An inner two piece frame is mounted within the housing, with first and second pairs of opposing frame ends communicating with opposite sides of a pair of speed sensor alignment studs with outer contact rings. A first and forward-most disposed of the frames is fixedly disposed within the body, the other and rearward disposed frame being linearly displaceable in response to rotation of the weighted and cam-shaped element.
A lithium style battery is mounted within the body, with a plurality of lead wires extending from the battery and connecting to first, second and third LED elements mounted to selected exterior locations of the body. The processor operates to instruct a selected LED element to illuminate, dependent upon at least one of a sensed club speed and an achieved planar orientation of the club face relative to the golf ball.
Additional features include a sound-generating transistor component is also mounted in the body and, in concurrent communication with the processor along with the LED) elements, issues a selected audio output to correspond with a selected illuminated LED). Yet additional features include an alignment adjustment dial (this consisting of a cooperating component in a primary dual functioning embodiment and an alternating secondary component) mounted in a forward spaced fashion relative to the speed sensor contact post, the adjustment dial exerting a selected sideways bias to the spring in order to compensate for left and right club face planar offset for a selected swing speed. The alignment adjustment dial further includes a pair of spaced apart posts extending in a direction opposite an exposed and user gripping portion, a selected one of the posts engaging a side location of the spring according to a given setting, and in order thereby to compensate for a user's hook or slice tendencies by pre-stressing or pre-influencing the spring in a given lateral deflecting manner.
Reference will now be made to the attached drawings, when read in combination with the following detailed description, wherein like reference numerals refer to like parts throughout the several views, and in which:
Referring to
The attachment device 10 exhibits any suitable size or dimension rendering it amenable for being mounted atop a golf club head and, in one non-limiting variant, may include a set of dimensions of 2½″ overall length, ¼′″ thickness and 1⅞″ maximum width, and which is suitable for mounting to such as an upper surface of any suitable club (including both drivers and irons) and in proximity to a front club face 4, and such that a substantially forward-most portion 12 of the device 10 overlays a substantially midpoint centerline (see at 8 in
As best shown in each of the underside exploded perspectives of
Referring again back to
Referencing again to the component architecture 18 in
The swing speed adjustment dial 20 rotatably engages a weighted and inertially sensitive cam shaped component, see at 28, (see also
A speed sensor alignment contact/post 42 is secured to an extending end 44 of an adjustable coil spring 46, an opposite end 48 of the spring fixedly securing at a forward end location of the device. An inner two piece frame 50 and 52 mounts within the base 14 of the body (see again
In operation, linear adjustment and successive displacement of the speed alignment contact 30, resulting from the rotary inertial effect of the cam element 28 during the swing stroke, results in contact with the speed sensor alignment contact 42. The swing speed dial 20 can be set to a target swing speed, such as within a range of settings ranging from 70-130 mph. In
As will also be described in reference to the alternate variant of
As previously discussed, the sound-generating transistor component 26 is likewise mounted in said body and, in concurrent communication with said processor along with the LED elements 82, 84 and 86, issues a selected audio output to correspond with a selected illuminated LED. The selected LED instructs one of a “closed face/hook pull” (such as corresponding to a first colored, by example blue LED 82), an “open face/push slice” (second colored, by example yellow LED 84) and an “over set club head speed” (third colored, by example red LED 86). indication. Concurrently, the sound-generating transistor can cooperate with the selected LED to issue one of a “hook”, “nice shot” and “slice, fast swing” audio indication.
The alignment adjustment dial (see as again shown at 22 in
An underside embossment 94 formed in the disc portion 91 of the alignment adjustment dial 22 is selectively seated within a given one of a plurality of radially offset engagement recesses (see at 96 in
As also referenced in the underside exploded view of
Referring to
Speed adjustment spring 124 extends from a contact post 126 communicating with the battery 24 at a forward end, as well as to a speed sensor contact post 128 at an opposite and intermediate defined end within the unit housing. Additional features shown in
A spring adjusted and weighted cam is also shown in both first and second positions 136 and 136′. The cam 136 operates in cooperation with the speed alignment contact 138 to achieve a selected inertial force deflection of the contact 138 (such as in a direction toward the contact post 128). The invention operates on the principle of either adjusting the length and tensioning of the spring 124, or of the biasing deflecting force of the alignment contact 138 (via the cam 136) and in order to achieve sufficient deflection and electrical communication of the contact 138 with the post 128.
For purposes of this variant, a speed alignment contact 142 can be mounted to a rear end location of the body, and in operative communication between the speed sensor connector 140 and the LED wire contact 114. Although not shown in
The above description addresses a golf club attachable device incorporating the combined features of swing speed and directional control. Additional variants of the present invention further contemplate providing the swing tempo and direction features in alternating and individualized fashion, and which is the subject of the variants respectively disclosed in
Referring first to
Additional features include an elongated extending and inner frame component 154 (similar to that shown at 40 in the embodiment of
An inertially sensitive cam shaped component 158 (see also at 28 in
A generally four-sided and interiorly hollow clip portion 174 is provided and includes a pair of rear located biasing contacts 176 and 178, such that the clip portion 174 is supported and located by a pair of posts 180 and 182 extending from the base 146. As best shown from the semi-assembled and top plan view of
In this fashion, the “rectangular sided” clip portion 174 is caused to “flex” in a linear direction upon being swung, with a selected velocity, and about the anchored biasing contact locations 176 and 178. The illuminating of the LED 157 results from the clip portion 174 closing the circuit with the fixed contact post 168, this in turn resulting from the a greater than desired swing speed resulting in the forward widthwise extending wall of the clip portion 174 being biasingly deflected (again along directional arrow 186) into engagement with the post 168.
Referring to
Other features unique to the target training device of
As best illustrated in the underside plan view of
Referring now to
Referencing the environmental view of
As in previous embodiments, the base 222 includes architecture locations for supporting a plurality of interior components in precisely located and desirously inter-operating fashion in order provide the desired tempo (accuracy) and accuracy functions. Specifically, an inner frame component (or conduit) 234 is provided and seats within perimeter defining locations associated with the base 222. A first end 236 of the inner frame component 234 is located in a likewise first end location of the base 222 and contacts a tempo/speed indicating LED 238 (see also cutaway plan view illustration of
Alignment locations 240 and 242 associated with the architecture defining base 222 retain the component 234 in position, such that a second (forward facing) location 244 is selectively biasingly communicated with an accuracy indicating spring conduit 246. Inter-disposed in electrically communicating fashion between the inner frame component location 244 and accuracy spring conduit 246 is an accuracy indicating LED element 248 (this further indicating from an upper face of the cover 224, and as opposed to the tempo indicating LED 238 which extends in a direction towards a rear of the putter head 212. A second end 250 of the inner frame component 234 is arranged in biasing contact with a like end portion associated with the accuracy indicating spring conduit 246, in seating fashion within the base 222 and such that an on/off switch 252 is mounted to a side location in biasing contact with the location 250 of the frame component 234. As best shown in
A substantially rectangular shaped clip 258 (also termed tempo conduit) includes anchored biasing contact locations 260 and 262. A protrusion or ridge 264 is located in an intermediate location of the clip 258 (the purpose for which will be subsequently described), the clip 258 seating in a general base component 222 location, at 266, in
A spherical shaped accuracy contact 284 is seated upon an associated (coil) spring 286, in turn engageably supported upon an inwardly configured end portion 288 associated with the accuracy indicating spring conduit 246 (see again
An accuracy adjustment slide 296 seats within associated defined slots or channels, see at 296 and 298 in
Finally, an accuracy dial is identified at 312, with a corresponding gripping portion projecting upwardly through another cover defined seating recess, at 314, about which are defined additional hash mark settings 316, 318, 320, 322 and 324. A downward projecting portion 313 of the accuracy dial 312 (see again
Referencing now
As further shown in the corresponding
Proceeding on to
Referring now to
Referring to
Referring now to each of
A pair of left 346 and right 348 lie slide adjustment knobs are affixed in translating fashion through the slots 340 and 342, whereas a forward installed tempo slide 350 is likewise secured to the forward position slot 344. As will be further described, the left 346 and right 348 slide adjustment knobs or controls operate to adjust a given bias or compensation associated with a pendulum contact as it deflects in either of first and second side directed fashions and during the inertial producing putting stroke.
As best shown in
Additional underside configurations, see at 352, 354 and 356, in the perimeter extending skirt of the upper body shell are defined at respective left side, front and right side locations of the article and at which are seated respective LED components, these including a left lie indicator 358, a tempo indicator 360 and a right lie indicator 362.
As best again shown in
An additional seating location is defined at 370 and provides for housing a circular (such as a lithium style) battery 372 in an underside mounting fashion within the base 336. A bottom facing battery cover 374 and inner battery contact 376, in combination with several upper body tab engagement portions 378 (see also corresponding engagement slot 979 in the upper housing 334) and additional and mating LED locations 380, 382 and 384, provide a fairly detailed description of the upper and lower body components
A pair of left 386 and right 388 adjustable legs are illustrated, these each exhibiting three interconnected and perpendicularly inter-extending legs, along a three dimensional plane, and being secured to rear locations 390 and 392 (see both as shown in
As also best shown in
Referencing again
As will be further described, the curled inner edge 405 (see
A pair of left and right lie slide guides are shown at 412 and 414, respectively, these engaging associated underside projecting portions 416 and 418 of the interconnecting left and right lie slides 346 and 348 (see again
In operation, and during the inertial putting stroke, the left 346 and right 348 slides are preadjusted to compensate for the golfer's natural lie offset (e.g. again the offset angle θ of the club head 212 about axis 349 as shown in
Concurrently, the slidable tempo contact 404 (with inner curled contact edge 405) is adjusted inwardly or outwardly relative to the pendulum spring 422 and associated ball contact 424 (see in particular
Finishing off the interior architecture is an on/off switch contact 420, to which is secured a top end of the pendulum spring conductor 422, in the embodiment illustrated being a coil spring element secured to an inner top location of the upper body housing 338 and from which the electrically communicating and lower-most disposed and extending (and inertially sensitive) ball contact 424 is suspended within the open interior cavity of the housing (see as best shown in
Although not clearly identified, it is understood that a variant of the invention can incorporate a suitable microprocessor control can be incorporated into such as the inner defined location 370 of the base component 336. Such a microprocessor can incorporate any suitable sensor technology (such as which may be inertially responsive) and which is capable of being operable either with or in substitution of a standard pendulum spring contact for interpreting a selective swing (lie) or tempo associated with a putter swing and, responsive thereto, for indicating whether a club face orientation (or left/right lie) or tempo (swing speed) needs to be readjusted and in order to optimize the performance characteristics of a given golfer. Also not further identified is the provision of an optional audio output means (this operating in cooperation with the visual LED components shown), it being understood that the features illustrated throughout the several views are capable of being interchangeably incorporated into each of the described embodiments.
Referring now to
Addressing further
Also shown in each of
Referring further to
Finally, and referring to
In this fashion, the putter mounted tempo/directional variant of the putter operates in a substantially similar fashion as described previously in regards to the driver and iron variants. Otherwise, the putter variant may also employ any combination of processor, as well as audio output capability, such as described in reference to the competing embodiments and in order to augment the visual (LED) indicators referenced herein.
Having described my invention, other and additional preferred embodiments will become apparent to those skilled in the art to which it pertains and without deviating from the scope of the appended claims. In particular, and while the preferred embodiments primarily disclose both speed (tempo) and directional (target) training devices secured to a driver (wood) or iron club, it is also envisioned that additional variants can be employed in a golf putter. Given the dynamics of a putter stroke, such an alternate variant could employ a linearly displaceable and spring biased contact portion of some construction, and which could achieve the desired results of enabling a user to more carefully regulate a swinging speed of the putter, as well as to provide for directional control in a manner consistent with that previously described.
Claims
1. A device for a golf club for instructing club face orientation for a selected swing speed, said device comprising:
- a body adapted to being secured to a surface of the club head and incorporating a powered processor in communication with an inertially sensitive element; and
- said body further including and at least one of an audio and a visual output communicated by said processor and for instructing at least one of a correct swing speed and a correct planar orientation of a contacting face of the club head relative to the golf ball.
2. The device as described in claim 1, further comprising a swing speed adjustment in operative communication with said body and in contact with said inertially sensitive element via all adjustable spring.
3. The device as described in claim 2, said swing speed adjustment further comprising a rotary dial mounted to a rearward end location of said body.
5. The device as described in claim 2, said inertially sensitive element further comprising a weighted and cam-shaped element rotatably mounted within a location of said body a spaced distance from said swing speed adjustment.
6. The device as described in claim 5, said swing speed adjustment further comprising a speed sensor contact post secured to an extending end of said adjustable spring, an opposite end of said spring fixedly securing at a forward location of said body and, depending upon forward or rearward adjustment of said post establishing a desired swing speed.
7. The device as described in claim 6 further comprising an inner two piece frame mounted within said body, first and second pairs of opposing frame ends communicating with opposite sides of a pair of speed sensor alignment studs with outer contact rings.
8. The device as described in claim 7, a first and forward-most disposed of said frames being fixedly disposed within said body, the other and rearward disposed frame being linearly displaceable in response to rotation of said weighted and cam-shaped element.
9. The device as described in claim 1, further comprising a lithium style battery mounted within said body, a plurality of lead wires extending from said battery and connecting to first, second and third LED elements mounted to selected exterior locations of said body, said processor instructed a selected LED element to illuminate dependent upon at least one of a sensed club speed and an achieved planar orientation of the club face relative to the golf ball.
10. The device as described in claim 9, further comprising a sound-generating transistor component mounted in said body and, in concurrent communication with said processor along with said LED elements, issuing a selected audio output to correspond with a selected illuminated LED.
11. The device as described in claim 6, further comprising an alignment adjustment dial mounted in a forward spaced fashion relative to said speed sensor contact post, said adjustment dial exerting a selected sideways bias to said spring in order to compensate for left and right club face planar offset for a selected swing speed.
12. A device for a golf club for instructing club face orientation for a selected swing speed, said device comprising:
- a body including an outer housing exhibiting a substantially arrowhead shape with a selected thickness and such that a substantially pointed forward end of said body intersects a midpoint of the club contact face and proceeds in a substantially perpendicularly extending direction relative to a coplanar axis extending across the club contact face;
- an adhesive tacky material applied to an underside surface of said body and for engaging said body to a top surface of the club head;
- said body including a powered processor in communication with an inertially sensitive element including at least a weighted and cam shaped member rotatably mounted within a location of said body;
- at least one of a swing speed adjustment knob and an alignment adjustment dial in operative communication with said body and in contact with said inertially sensitive element via an adjustment spring; and
- said body further including and at least one of an audio and a visual output communicated by said processor and for instructing either of a desired swing speed and a correct planar orientation of a contacting face of the club head relative to the golf ball.
13. The device as described in claim 12, said swing speed adjustment further comprising a speed sensor contact post secured to an extending end of said adjustable spring, an opposite end of said spring fixedly securing at a forward location of said body and, depending upon forward or rearward adjustment of said post, establishing a desired swing speed.
14. The device as described in claim 13, further comprising an inner two piece frame mounted within said body, first and second pairs of opposing frame ends communicating with opposite sides of a pair of speed sensor alignment studs with outer contact rings.
15. The device as described in claim 14, a first and forward-most disposed of said frames being fixedly disposed within said body, the other and rearward disposed frame being linearly displaceable in response to rotation of said weighted and cam-shaped element.
16. The device as described in claim 12, further comprising a lithium style battery mounted within said body, a plurality of lead wires extending from said battery and connecting to first, second and third LED elements mounted to selected exterior locations of said body, said processor instructed a selected LED element to illuminate dependent upon at least one of a sensed club speed and an achieved planar orientation of the club face relative to the golf ball.
17. The device as described in claim 16, further comprising a sound-generating transistor component mounted in said body and, in concurrent communication with said processor along with said LED elements, issuing a selected audio output to correspond with a selected illuminated LED.
18. The device as described in claim 13, further comprising said alignment adjustment dial being mounted in a forward spaced fashion relative to said speed sensor contact post, said adjustment dial exerting a selected sideways bias to said spring in order to compensate for left and right club face planar offset for a selected swing speed.
19. An inertially and positionally sensitive device for use with a golf putter for instructing club face orientation for a selected swing speed, said device comprising:
- a body including a sandwichingly engageable base and cover and which is adapted to being secured to a surface of the club head;
- a power supply incorporated into said body;
- a swing speed dial incorporated into a first location associated with said body and exhibiting a number of rotational settings, a cam-shaped surface associated with said swing speed dial exhibiting a plurality of contact locations for selectively biasing to varying degrees an interior mounted tempo clip for selectively illuminating a tempo indicating element associated with said body;
- an accuracy dial incorporated into a second location associated with said body and exhibiting a number of rotation settings for linearly displacing an accuracy adjustment slide within said body; and
- an accuracy contact mounting to an end of a spring element and extending in both biasing and electrically communicating fashion relative to said accuracy dial, a lateral resistance imparted to said accuracy contact being a variable of an accuracy dial setting and selectively illuminating an accuracy indicating element.
20. The device as described in claim 19, further comprising a pair of angled legs extending from locations associated with said body and overlaying first and second spaced apart locations associated with a front putter face in order to define a ball striking region.
21. The device as described in claim 19, further comprising:
- an inner frame component seating in communication with said power supply and extending within perimeter defining locations associated with an architecturally configured and component defining base, a First end of said inner frame component locating at a first end location of said base and contacting a tempo/speed indicating LED;
- alignment locations associated with said base retaining said component, such that a further location is selectively biasingly communicated with an accuracy indicating spring conduit;
- an accuracy indicating LED element being inter-disposed in electrically communicating fashion between said inner frame component location and said accuracy spring conduit; and
- a second end of said inner frame component being arranged in biasing contact with a like end portion associated with said accuracy indicating spring conduit, in seating fashion within said base, and such that an on/off switch is mounted in biasing contact with said inner frame component.
22. A device for a putter golf club for instructing club face lie for a selected swing speed, said device comprising:
- a body constricted of first and second assembleable components and which establishes an interior and component supporting cavity, said body being adapted to being secured to a surface of the club putter head; and
- said body further including and at least one of an audio and a visual output communicated by said processor and for instructing at least one of a correct swing tempo and a correct planar lie of a contacting face of the club head relative to the golf ball.
23. The device as described in claim 22, further comprising left and right side adjustable lie controls mounted to first locations of said body, a tempo slide control being mounted to a further location, left and right side disposed lie LED indicators and a forward-most disposed tempo LED indicator being in operative communication with said left/right lie and tempo controls
24. The device as described in claim 22, further comprising left and right side adjustable legs projecting from a rear location of said body and, in cooperation with a fastening structure employed at an underside of said body, operating to affix said device to the putter head.
25. The device as described in claim 23, said inertially sensitive element further comprising a spring pendulum ball contact secured to a bottom end of a coil spring in turn secured to an linearly repositionable on/off contact, said pendulum ball being inertially influenced during a putting stroke in order to contact a selected one of first and second side disposed lie indicating conductors and a further and forwardly disposed pendulum conducter to notify the exceeding of a preset Club head lie and/or a tempo/speed parameter.
Type: Application
Filed: Oct 22, 2007
Publication Date: Apr 23, 2009
Inventor: DANIEL CHERESKO (Brighton, MI)
Application Number: 11/876,260
International Classification: A63B 69/36 (20060101);