Patent ID: 8242418

Claim:
A golf ball bag, comprising: a main housing having a receiving cavity for receiving one or more golf balls therein; and a temperature controlling device, which comprises: a heating device supported in said receiving cavity of said main housing, wherein said heating device comprises a first heating plate which is longitudinally aligned at a rear wall of said receiving cavity, and a second heating plate which is longitudinally aligned at a front wall of said receiving cavity; and a power source electrically coupling with said heating device, wherein when said power source is activated, said heating device generates heat towards said golf balls to maintain a hitting surface of each of said golf balls at an optimal hitting temperature for optimal performance thereof, wherein said first heating plate is electrically coupled with said power source for heat generation within said receiving cavity, wherein said second heating plate is electrically coupled with said power source for heat generation within said receiving cavity, such that said golf balls are longitudinally received said receiving cavity and sandwiched between said first and second heating plates, wherein each of said first and second heating plates comprises an elongated flexible heating element which is made of heat conductive material and is bent in a zigzag configuration for maximizing a heat-generating area, and a heat transferring sleeve receiving said flexible heating element for evenly disturbing said heat from said flexible heating element to said receiving cavity in a planar direction.