Richard Lee Johnson
Architects at Charles St, Rockford, IL
License number
Colorado 400454
Issued Date
Jun 27, 2005
Renew Date
Jun 27, 2005
Expiration Date
Jul 31, 2007
Type
Architect
Address
Address
4703 Charles St, Rockford, IL 61108
Professional information
Device And Method For Inspecting Cam Profiles
US Patent:
2002010, Aug 1, 2002
Filed:
Feb 21, 2001
Appl. No.:
09/789692
Inventors:
Richard Johnson - Rockford IL, US
International Classification:
G01B021/20
US Classification:
356/602000
Abstract:
A device and method for inspecting cam profiles by sensing and storing data points representing the profiles of camshaft cams and comparing this information to known acceptable limits. The device includes an array of laser range finders that are alignable with respective cams of a camshaft to be inspected. The range finders measure the distances to respective outer cam surfaces by reflecting laser light off those surfaces as the cams rotate, calculating angles of reflection by sensing the changing positions of reflected laser light and calculating distances to the respective reflecting points from the angles of reflection. The device also includes a circuit connected to the range finders that determines the dimensions of the cams by analyzing the electrical signals from the range finders as the camshaft rotates.