Golf ball
AssigneeTaylor Made Golf Company, Inc.
InventorDana Ehyaei
Life of this patent
Estimating the term…
Abstract
A golf ball which, when orientated in the cross seam direction, has an equator at latitude 0°, and poles at latitude 90° and longitude 0°, an equator region Ex at latitudes 0 to 25°, a region Ei at longitudes 0 to 25°, a shoulder region Sx at latitudes from more than 25° to less than 65°, a region Si at longitudes from more than 25° to less than 65°, a pole region Px at latitudes 65° to 90°, and a region Pi at longitudes 650 to 90°. The ball dimple pattern has the following average dimple depths, hex in the region Ex, hsx in the region Sx, hpx in the region Px, hei in the region Ei, hsi in the region Si and hpi in the region Pi; and the ratios hex/hei, hsx/hsi and hpx/hpi are each greater than or equal to about 0.75 and less than or equal to about 1.20.
Claims9
A golf ball having dual radius dimples on its surface having a plurality of depths and which when orientated in the cross seam direction has;
- an equator at latitude 0° and poles at latitude 90° and longitude 0°,
- a region Ex defined by latitudes 0° to 25° having 60 dual radius dimples, each of the 60 dual radius dimples having a center located within the region Ex;
- a shoulder region Sx defined by latitudes from more than 25° to less than 65° having 85 dual radius dimples, each of the 85 dual radius dimples having a center located within the region Sx;
- a pole region Px defined by latitudes 65° to 90° having 16 dual radius dimples, each of the 16 dual radius dimples having a center located within the region Px;
- wherein the dual radius dimples have:
- i) an average total depth from 0.06 to 0.20 mm;
- ii) a relative ratio, a, of 0.5, where a=d1/d2, wherein d2 is the diameter of the dimple at an open end;
- and d1 is a first diameter measured at a portion of the of the dimple below the open end;
- iii) a volume ratio (Vr), from 0.55 to 0.70, where
- Vr=Vi/(π·hi·d22/4), wherein Vi is the total volume of the dual radius dimple, and hi is the total depth of that dual radius dimple, and the dual radius dimples have an average volume from 0.85 mm3 to 1.3 mm3.
A golf ball having dual radius dimples on its surface having a plurality of depths and which when orientated in the cross seam direction has;
- an equator at latitude 0°, and poles at latitude 90° and longitude 0°,
- a region Ex defined by latitudes 0° to 25° having 60 dual radius dimples, each of the 60 dual radius dimples having a center located within the region Ex;
- a shoulder region Sx defined by latitudes from more than 25° to less than 65° having 85 dual radius dimples, each of the 85 dual radius dimples having a center located within the region Sx;
- a pole region Px defined by latitudes 65° to 90° having 16 dual radius dimples, each of the 16 dual radius dimples having a center located within the region Px;
- wherein hex is the average dimple depth in the region Ex, hsx is the average dimple depth in the region Sx, hpx is the average dimple depth in the region Px;
- wherein each dual radius dimple has:
- i) an average total depth of the dual radius dimples from 0.06 to 0.20 mm;
- ii) a relative ratio, a, of 0.5, where a=d1/d2, wherein d2 is the diameter of the dimple at an open end;
- and d1 is a first diameter measured at a portion of the of the dimple below the open end;
- iii) a volume ratio, Vr, from 0.55 to 0.70, where
- Vr=Vi/(π·hi·d22/4), wherein Vi is the total volume of the dual radius dimple and h;
- is the total depth of the dual radius dimple, and the dual radius dimples have an average volume from 0.85 mm3 to 1.3 mm3;
- and
- wherein the golf ball comprises;
- a core comprising a polybutadiene;
- one or more intermediate layers selected from the group consisting of unimodal ionomers, bimodal ionomers, modified unimodal ionomers, modified bimodal ionomers and any and all combinations thereof;
- and
- an outer cover layer selected from the group consisting of thermoset polyurethanes, thermoset polyureas, thermoplastic polyurethanes, thermoplastic polyureas, unimodal ionomers, bimodal ionomers, modified unimodal ionomers, modified bimodal ionomers and any and all combinations thereof.
Dependencies are inferred from the claim text.