Patents Assigned to Daniel P. Bacchiere
  • Patent number: 4523250
    Abstract: Prior art magnetic chuck control systems do not utilize state of the art components and do not sufficiently isolate the power output from control circuits. The instant invention discloses a magnetic chuck control system employing solid state circuitry including a power output circuit (24) adapted to apply a DC voltage to an object such as a magnetic chuck (12) or the like so as to magnetize the same. The power output circuit employs a triac reversing circuit and is interfaced with a digital control circuit (26) and a digital-to-analog converter circuit (30) so as to apply alternating polarity voltage signals of successively reduced magnitude to the chuck during a demagnetizing operation. All high voltage is confined to the power output circuit so as to provide significant safety protection to the operator.
    Type: Grant
    Filed: February 9, 1982
    Date of Patent: June 11, 1985
    Assignee: Daniel P. Bacchiere
    Inventors: Daniel P. Bacchiere, Stanley F. Polinski