Patent ID: 7602508
Filing Date: 2009-10-13
Classification: B63B,B63H,G01B

Abstract:
1. A method of determining propeller parameters for a boat propeller that has a hub, central axis and a plurality of propeller blades attached to the hub, each blade having a blade surface, comprising the steps of: a) providing a laser in close proximity to the propeller, the laser having a laser head; b) using the laser to measure distance from the laser head to the propeller blade surface, wherein the laser generates a beam that terminates at the propeller blade surface; c) moving the laser in relation to the propeller along either or both of two axis including a first axis that is a linear axis and a second axis that is curved; d) using the laser to measure distance from the laser head to the propeller blade surface after step “c”; e) computing multiple parameters by using the measurements of steps “b” and “d”, said parameters selected from the group that includes pitch, rake, and squareness; f) wherein the propeller is damaged and further comprising the step of repairing the propeller after step “e”; and g) after step “f”, repeating steps “b” through “e” to verify that the propeller was properly repaired.