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Daniel Hefler Phones & Addresses

  • Stamford, CT
  • Saint Augustine, FL
  • Carlisle, MA
  • Ponte Vedra Beach, FL
  • Cambridge, MA

Professional Records

License Records

Daniel F Hefler

Address:
Carlisle, MA 01741
License #:
22747 - Expired
Issued Date:
Jun 27, 1969
Expiration Date:
Jun 30, 1992
Type:
Electrical Engineer

Publications

Us Patents

Hydraulically Operated Riveting Machine

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US Patent:
39557391, May 11, 1976
Filed:
Dec 30, 1974
Appl. No.:
5/537603
Inventors:
Richard L. Markus - Bridgeport CT
William P. Hidden - Wenham MA
Daniel F. Hefler - Concord MA
Assignee:
The Milford Rivet & Machine Company - Milford CT
International Classification:
B21J 1520
US Classification:
227 1
Abstract:
A hydraulically actuated power cylinder reciprocates a driver to exert a compressive force to upset a rivet with the power cylinder's movement being made to correspond to the movement of a pump cylinder by a fluid connection therebetween. The pump cylinder's movements are mechanically actuated according to a programmed cam and actuation is made to occur only during the riveting cycle by a control circuit operating a clutch and brake with the circuit inhibiting operation upon the sensing of a malfunction.
Daniel F Hefler from Stamford, CTDeceased Get Report