ROBERT EDWARD LEHMAN
Nursing in Newport News, VA
License number
Pennsylvania RN504728L
Category
Nursing
Type
Registered Nurse
Address
Address
2
Newport News, VA 23606
Pennsylvania
Pennsylvania
Personal information
See more information about ROBERT EDWARD LEHMAN at radaris.comName
Address
Phone
518 Grant Barto Rd, Hughesville, PA 17737
508 Mountain Rd, Dillsburg, PA 17019
4756 Loring St, Philadelphia, PA 19136
47 Derringer St, Sugarloaf, PA 18249
502 Pine Song Ln, Virginia Bch, VA 23451
Professional information
Method Of Making An Electrically-Operated Fluid Valve Having Improved Sealing Of The Valve Needle To The Valve Seat When The Valve Is Closed
US Patent:
5081766, Jan 21, 1992
Filed:
Oct 11, 1990
Appl. No.:
7/596166
Inventors:
James A. Kellum - Seaford VA
Robert Lehman - Newport News VA
James Parish - Newport News VA
Robert Lehman - Newport News VA
James Parish - Newport News VA
Assignee:
Siemens Automotive L.P. - Auburn Hills MI
International Classification:
B21D 5300
US Classification:
2989013
Abstract:
A method of making an electrically-operated fluid valve for improving the metal-to-metal sealing of the valve needle to the valve seat, particularly of the rounded tip end of the needle to a frusto-conical depression in the seat. The method comprises applying a controlled axial compressive load to the seated needle to cause the annular zone of sealing contact between the needle and the seat to be coined.