Patent ID: 11896880
Assignee: KARSTEN MANUFACTURING CORPORATION
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 14:
15. The putter shaft of claim 14, wherein:
the putter shaft comprises a characterizing ratio selected from the group consisting of:
a ratio of frequency to tip OD that ranges inclusively between 1444 cpm/inch and 3200 cpm/inch,
a ratio of torsional stiffness to tip OD that ranges inclusively between 1.0 degrees/(ft*lb*inch) and 4.0 degrees/(ft*lb*inch),
a ratio of frequency to shaft mass that ranges inclusively between 4.0 cpm/gram and 8.0 cpm/gram, and

a ratio of torsional stiffness to shaft mass that ranges inclusively between 0.003 degress/(ft*lb*gram) and 0.010 degrees/(ft*lb*gram).