Patent application number | Description | Published |
20100016095 | GOLF CLUB HEAD HAVING TRIP STEP FEATURE - An aerodynamic golf club head incorporating a trip step feature located on the crown section. The benefits associated with the reduction in aerodynamic drag force associated with the trip step may be applied to drivers, fairway woods, and hybrid type golf club heads. The trip step is located between a crown apex and the back of the club head and may be continuous or discontinuous. The trip step enables a significant reduction in the aerodynamic drag force exerted on the golf club head by forcing the air passing over the club head from laminar flow to turbulent flow just before the natural separation point of the airstream from the crown. This selectively engineered transition from laminar to turbulent flow over the crown section slightly increases the skin friction but results in less aerodynamic drag than if the air were to detach from the crown section at the natural separation point. | 01-21-2010 |
20100016096 | HIGH VOLUME AERODYNAMIC GOLF CLUB HEAD - A high volume aerodynamic golf club head with a club head volume of at least 400 cc and a front-to-back dimension of at least 4.4 inches producing a face-on normalized aerodynamic drag force of less than 1.5 lbf when exposed to a 100 mph wind parallel to the ground plane and oriented at the front of the club head. The club head has a crown section having a crown apex located an apex height above a ground plane, wherein a portion of the crown section between the crown apex and the face has an apex-to-front radius of curvature that is less than 3 inches. An apex ratio of the apex height to a maximum face top edge height is at least 1.13. The apex height and location of the crown apex obtain desirable airflow reattachment close to the face and improve airflow attachment to the crown section. | 01-21-2010 |
20100016097 | HIGH VOLUME AERODYNAMIC GOLF CLUB HEAD HAVING A POST APEX ATTACHMENT PROMOTING REGION - A high volume aerodynamic golf club head having a post apex attachment promoting region with a club head volume of at least 400 cc and a front-to-back dimension of at least 4.4 inches producing a face-on normalized aerodynamic drag force of less than 1.5 lbf when exposed to a 100 mph wind parallel to the ground plane and oriented at the front of the club head. The post apex attachment promoting region is on the surface of the crown section at an elevation above a maximum face height and begins at the crown apex and extends toward the back of the club head. The post apex attachment promoting region is a relatively flat portion of the crown section that is behind the crown apex, yet above the maximum top edge plane, and aides in keeping airflow attached to the club head once it flows past the crown apex. | 01-21-2010 |
20110294599 | HOLLOW GOLF CLUB HEAD - A hollow golf club incorporating a stress reducing feature including a crown located stress reducing feature, located on the crown of the club head, and a sole located stress reducing feature, located on the sole of the club head. The location and size of the stress reducing features, and their relationship to one another, play a significant role in reducing the peak stress seen on the golf club's face during an impact with a golf ball, as well as selectively increasing deflection of the face. | 12-01-2011 |
20120071267 | HIGH VOLUME AERODYNAMIC GOLF CLUB HEAD - A high volume aerodynamic golf club head with a club head volume of at least 400 cc and a front-to-back dimension of at least 4.4 inches producing reduced aerodynamic drag forces. The club head has a crown section having a crown apex located an apex height above a ground plane, wherein a portion of the crown section between the crown apex and the face has an apex-to-front radius of curvature that is less than 3 inches. The apex height and location of the crown apex obtain desirable airflow reattachment close to the face and improve airflow attachment to the crown section. | 03-22-2012 |
20120071268 | HIGH VOLUME AERODYNAMIC GOLF CLUB HEAD HAVING A POST APEX ATTACHMENT PROMOTING REGION - A high volume aerodynamic golf club head having a post apex attachment promoting region with a club head volume of at least 400 cc and a front-to-back dimension of at least 4.4 inches producing reduced aerodynamic drag forces. The post apex attachment promoting region is on the surface of the crown section at an elevation above a maximum face height and begins at the crown apex and extends toward the back of the club head. The post apex attachment promoting region is a relatively flat portion of the crown section that is behind the crown apex, yet above the maximum top edge plane, and aides in keeping airflow attached to the club head once it flows past the crown apex. | 03-22-2012 |
20120083362 | HOLLOW GOLF CLUB HEAD HAVING CROWN STRESS REDUCING FEATURE - A hollow golf club incorporating a stress reducing feature including a crown located stress reducing feature located on the crown of the club head. The location and size of the crown stress reducing feature, and their relationship to one another and other club head engineering variables, play a significant role in reducing the peak stress seen on the golf club's face during an impact with a golf ball, as well as selectively increasing deflection of the face. | 04-05-2012 |
20120083363 | HOLLOW GOLF CLUB HEAD HAVING SOLE STRESS REDUCING FEATURE - A hollow golf club incorporating a stress reducing feature including a sole located stress reducing feature located on the sole of the club head. The location and size of the sole stress reducing feature, and their relationship to one another and other club head engineering variables, play a significant role in reducing the peak stress seen on the golf club's face during an impact with a golf ball, as well as selectively increasing deflection of the face. | 04-05-2012 |
20120142445 | LENGTH ADJUSTMENT SYSTEM FOR JOINING A GOLF CLUB HEAD TO A SHAFT - A length adjustment system for joining a golf club head to a shaft is provided. The length adjustment system may be utilized to produce a minor length, an intermediate length, and an extended length of a golf club. In a minor length configuration, the length adjustment system includes a shaft sleeve attached to an end of the shaft. A retainer releasably secures the shaft and shaft sleeve to the golf club head. The minor length configuration also features a minor length weight system. The intermediate length configuration further includes a first spacer, a first hosel sleeve, and an intermediate length weight system. The extended length configuration further includes a second spacer, a second hosel sleeve, and an extended length weight system. The length adjustment system incorporates the discovery of unique relationships among its components so that the resulting golf club has similar characteristics in each configuration. | 06-07-2012 |
20120142452 | GOLF CLUB HEAD HAVING A STRESS REDUCING FEATURE WITH APERTURE - A hollow golf club incorporating a stress reducing feature including an aperture located on the crown or sole of the club head. The location and size of the stress reducing feature and aperture, and their relationship to one another, play a significant role in selectively increasing deflection of the face. | 06-07-2012 |
20120270676 | GOLF CLUB HEAD HAVING A STRESS REDUCING FEATURE - A hollow golf club incorporating a stress reducing feature including at least a toe located stress reducing feature or a heel located stress reducing feature at least partially located on the skirt of the golf club head. The location and size of the stress reducing feature and their relationship to one another play a significant role in selectively increasing deflection of the face. | 10-25-2012 |
20120277029 | HOLLOW GOLF CLUB HEAD HAVING SOLE STRESS REDUCING FEATURE - A hollow golf club head incorporating a stress reducing feature including a sole located stress reducing feature. The location and size of the sole stress reducing feature, and their relationship to one another and other club head engineering variables, play a significant role in selectively increasing deflection of the face. | 11-01-2012 |
20120277030 | HOLLOW GOLF CLUB HEAD HAVING CROWN STRESS REDUCING FEATURE - A hollow golf club head incorporating a stress reducing feature including a crown located stress reducing feature. The location and size of the crown stress reducing feature, and their relationship to one another and other club head engineering variables, play a significant role in selectively increasing deflection of the face. | 11-01-2012 |
20120316007 | GOLF CLUB HEAD HAVING TRIP STEP FEATURE - A golf club incorporating a trip step feature located on the crown section. The benefits associated with the reduction in aerodynamic drag force associated with the trip step may be applied to drivers, fairway woods, and hybrids. A portion of the trip step is located between a crown apex and the back of the club head and may be continuous or discontinuous. The trip step enables a reduction in the aerodynamic drag force exerted on the golf club by forcing the air passing over the club head from laminar flow to turbulent flow prior to the natural separation point of the airstream from the crown. This selectively engineered transition from laminar to turbulent flow over the crown section slightly increases the skin friction but results in less aerodynamic drag than if the air were to detach from the crown section at the natural separation point. | 12-13-2012 |
20130123040 | HIGH VOLUME AERODYNAMIC GOLF CLUB HEAD - A high volume aerodynamic golf club head having a post apex attachment promoting region with a club head volume of at least 400 cc and a front-to-back dimension of at least 4.4 inches producing reduced aerodynamic drag forces. The post apex attachment promoting region is on the surface of the crown section at an elevation above a maximum face height and begins at the crown apex and extends toward the back of the club head. The post apex attachment promoting region is a relatively flat portion of the crown section that is behind the crown apex, yet above the maximum top edge plane, and aides in keeping airflow attached to the club head once it flows past the crown apex. | 05-16-2013 |
20130184100 | GOLF CLUB HEAD HAVING A STRESS REDUCING FEATURE AND SHAFT CONNECTION SYSTEM SOCKET - A golf club incorporating a stress reducing feature in contact with a shaft connection system socket. The location and size of the stress reducing feature and the shaft connection system socket, and their relationship to one another, selectively increase deflection of the face and maintain stability of the shaft connection system. | 07-18-2013 |
20130303300 | LENGTH ADJUSTMENT SYSTEM FOR JOINING A GOLF CLUB HEAD TO A SHAFT - A length adjustment system for joining a golf club head to a shaft is provided. The length adjustment system may be utilized to produce a minor length and an intermediate length of a golf club. In a minor length configuration, the length adjustment system includes a shaft sleeve attached to an end of the shaft. The minor length configuration also features a minor length weight system. The intermediate length configuration further includes a first hosel sleeve and an intermediate length weight system. The length adjustment system results golf club that has similar characteristics in each configuration. | 11-14-2013 |
20130316848 | GOLF CLUB HEAD HAVING A SHIELDED STRESS REDUCING FEATURE - A hollow golf club incorporating a stress reducing feature having a shield serving to lessen the visual impact of the stress reducing feature, reduce the likelihood of debris from entering the stress reducing feature, and reduce the likelihood of damage to the stress reducing feature, while adding rigidity to a portion of the stress reducing feature and still allowing the stress reducing feature to selectively increase the deflection of the face. | 11-28-2013 |
20130344982 | HIGH VOLUME AERODYNAMIC GOLF CLUB HEAD HAVING A POST APEX ATTACHMENT PROMOTING REGION - A high volume aerodynamic golf club head having a post apex attachment promoting region with a club head volume of at least 400 cc producing reduced aerodynamic drag forces. The post apex attachment promoting region is on the surface of the crown section at an elevation above a maximum face height and begins at the crown apex and extends toward the back of the club head. The post apex attachment promoting region is a relatively flat portion of the crown section that is behind the crown apex, yet above the maximum top edge plane, and aides in keeping airflow attached to the club head once it flows past the crown apex. | 12-26-2013 |
20130344983 | HIGH VOLUME AERODYNAMIC GOLF CLUB HEAD - A high volume aerodynamic golf club head with a club head volume of at least 400 cc producing reduced aerodynamic drag forces. The club head has a crown section imparting beneficial aerodynamic and playability properties due in part to the location of a crown apex and the curvature of the crown section. | 12-26-2013 |
20140057736 | HIGH VOLUME AERODYNAMIC GOLF CLUB HEAD - A high volume aerodynamic golf club head with a club head volume of at least 400 cc producing reduced aerodynamic drag forces. The club head has a crown section imparting beneficial aerodynamic properties due in part to the location of a crown apex and the curvature of the crown section. | 02-27-2014 |
20140057738 | HOLLOW GOLF CLUB HEAD HAVING CROWN STRESS REDUCING FEATURE - A hollow golf club head incorporating a stress reducing feature including a crown located stress reducing feature. The location and size of the crown stress reducing feature, and their relationship to one another and other club head engineering variables, play a significant role in selectively increasing deflection of the face. | 02-27-2014 |
20140066224 | HIGH VOLUME AERODYNAMIC GOLF CLUB HEAD HAVING A POST APEX ATTACHMENT PROMOTING REGION - A high volume aerodynamic golf club head having a post apex attachment promoting region with a club head volume of at least 400 cc producing reduced aerodynamic drag forces. The post apex attachment promoting region is on the surface of the crown section at an elevation above a maximum face height and begins at the crown apex and extends toward the back of the club head. The post apex attachment promoting region is a relatively flat portion of the crown section that is behind the crown apex, yet above the maximum top edge plane, and aides in keeping airflow attached to the club head once it flows past the crown apex. | 03-06-2014 |
20140206469 | GOLF CLUB SET PROVIDING IMPROVED DISTANCE GAPPING ADJUSTABILITY - A set of golf clubs having a degree of adjustability to provide improved distance gapping across the transition from a curved face golf club head to a flat face golf club head. | 07-24-2014 |
20140235367 | AERODYNAMIC GOLF CLUB HEAD HAVING A POST APEX ATTACHMENT PROMOTING REGION - An aerodynamic golf club head having a post apex attachment promoting region producing reduced aerodynamic drag forces. The post apex attachment promoting region is on the surface of the crown section at an elevation above a maximum face height and begins at the crown apex and extends toward the back of the club head. The post apex attachment promoting region is a relatively flat portion of the crown section that aides in keeping airflow attached to the club head once it flows past the crown apex. | 08-21-2014 |
20140235368 | AERODYNAMIC GOLF CLUB HEAD - An aerodynamic golf club head that produces reduced aerodynamic drag forces. A crown section imparts beneficial aerodynamic properties due in part to the location of a crown apex and the curvature of the crown section. A sole section imparts beneficial aerodynamic properties due in part to the location of a sole apex and the curvature of the sole section. | 08-21-2014 |
20140323236 | GOLF CLUB HEAD HAVING TRIP STEP FEATURE - A golf club incorporating a trip step feature located on the crown section. The benefits associated with the reduction in aerodynamic drag force associated with the trip step may be applied to drivers, fairway woods, and hybrids. A portion of the trip step is located between a crown apex and the back of the club head and may be continuous or discontinuous. The trip step enables a reduction in the aerodynamic drag force exerted on the golf club. | 10-30-2014 |
20140342848 | GOLF CLUB HEAD HAVING A STRESS REDUCING FEATURE - A hollow golf club incorporating a stress reducing feature including at least a toe located stress reducing feature or a heel located stress reducing feature at least partially located on the skirt of the golf club head. The location and size of the stress reducing feature and their relationship to one another play a significant role in selectively increasing deflection of the face. | 11-20-2014 |
20140371002 | GOLF CLUB HEAD HAVING A STRESS REDUCING FEATURE WITH APERTURE - A golf club incorporating a stress reducing feature including an aperture located on the crown or sole of the club head. The location and size of the stress reducing feature and aperture, and their relationship to one another, play a significant role in selectively increasing deflection of the face. | 12-18-2014 |