JAMES EDWARD ROHANNA
Pilots at Mummasburg Rd, Gettysburg, PA
License number
Pennsylvania A4658769
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
1855 Mummasburg Rd, Gettysburg, PA 17325
Personal information
See more information about JAMES EDWARD ROHANNA at radaris.comName
Address
Phone
1855 Mummasburg Rd, Gettysburg, PA 17325
202 W 3Rd St, Oil City, PA 16301
Gettysburg, PA
202 3Rd St, Oil City, PA 16301
202 3Rd St, Titusville, PA 16354
Professional information
See more information about JAMES EDWARD ROHANNA at trustoria.com
Elevator System
Elevator System
US Patent:
4438831, Mar 27, 1984
Filed:
Jan 7, 1980
Appl. No.:
6/110280
Inventors:
James E. Rohanna - Gettysburg PA
Assignee:
Westinghouse Electric Corp. - Pittsburgh PA
International Classification:
B66B 100
US Classification:
187 30
Abstract:
A hydraulic elevator system wherein the pressure in the hydraulic system is used to measure load in the passenger compartment of the elevator car when the elevator car is stationary. A pressure monitoring device, such as a pressure switch, is calibrated to provide a signal when a predetermined pressure is reached, with this signal being used to modify the operation of the elevator system.