Paul E Daugherty
Plumbers at Tejon St, Denver, CO
License number
Colorado 310
Issued Date
Feb 1, 1971
Renew Date
Aug 31, 1991
Expiration Date
Aug 31, 1991
Type
Journeyman Plumber
Address
Address
9100 Tejon St SPACE #48, Denver, CO 80221
Professional information
Interchangeable Component Identification System
US Patent:
4244227, Jan 13, 1981
Filed:
Dec 22, 1978
Appl. No.:
5/972435
Inventors:
Dale C. Rudolph - Denver CO
Michael D. Ray - Denver CO
Richard L. Hansher - Colorado Springs CO
Paul W. Daugherty - North Glenn CO
Michael D. Ray - Denver CO
Richard L. Hansher - Colorado Springs CO
Paul W. Daugherty - North Glenn CO
Assignee:
Unirad Corporation - Englewood CO
International Classification:
G01N 2904
US Classification:
73621
Abstract:
Disclosed is a system for identifying which one of a plurality of interchangeable transducer heads is connected with an ultrasonic scanner. The system includes a unique impedance mounted on each transducer head and an impedance determining circuit in the scanner for determining the impedance of the interconnected transducer head. The impedance determination circuit is connected to a character generator for producing an alpha-numeric representation of the transducer head designation along the margin of a cathode ray tube on which an ultrasonic image is displayed. Also disclosed is an improved resolver mounting in which a cylindrical axle is used as a pivot pin between two scan arms of the ultrasonic scanner. A potentiometer for resolving the angle between pivotally connected arms is mounted on one arm with its shaft resiliently connected with the axle for rotation with the axle and other scan arm.