Electricity: measuring and testing – A material property using electrostatic phenomenon – For flaw detection
Patent
1995-06-22
1997-01-28
Wieder, Kenneth A.
Electricity: measuring and testing
A material property using electrostatic phenomenon
For flaw detection
324509, 324455, 324453, 340522, 361228, 361227, H05B 300
Patent
active
055980996
ABSTRACT:
A system and method for coincidence detection of ungrounded or inadequately grounded parts during the electrostatic coating process in order to improve production flow, provide an overall cost saving by efficient use of the coating material and prevention of accidental fires and false shutdown during production. The present invention utilizes a coincidence detection technique which performs a test for radio-frequency electromagnetic energy radiated by sparking and/or corona discharge caused by ungrounded parts outside a electrostatic coating area and a test for sensing and discriminating spurious radio-frequency electromagnetic energy radiated by sparking and/or corona discharge caused by any other external source. In accordance with one specific embodiment, the test performed outside the booth may include a further test for detecting ultraviolet energy radiated by the sparking and/or corona discharge. Upon detecting an ungrounded part, the part may be removed from the production line and appropriate steps to properly ground it may be taken. Performing coincident tests thus prevents false shutdowns in the production line.
REFERENCES:
patent: Re28394 (1975-04-01), Point
patent: 3739228 (1973-06-01), Point
patent: 3787707 (1974-01-01), Gregg
patent: 4718497 (1988-01-01), Moore et al.
patent: 5311167 (1994-05-01), Plimpton et al.
patent: 5339070 (1994-08-01), Yalowitz et al.
Castleman David A.
Lindrud Robert C.
Scarbrough Don R.
Fire Sentry Systems Inc.
Nordson Corp.
Solis Jose M.
Wieder Kenneth A.
LandOfFree
System and method for coincidence detection of ungrounded parts does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for coincidence detection of ungrounded parts , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for coincidence detection of ungrounded parts will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-943521