Alfred Frans Gort
Engineers at Arkins Dr, Loveland, CO

License number
Colorado 29477
Issued Date
Feb 4, 1994
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
4508 Arkins Dr, Loveland, CO 80538

Personal information

See more information about Alfred Frans Gort at radaris.com
Name
Address
Phone
Alfred Gort, age 88
4508 Arkins Dr, Loveland, CO 80538
Alfred E Gort, age 88
4508 Arkins Ct, Loveland, CO 80538
(970) 667-1813
Alfred Gort
3324 Eisenhower Blvd, Loveland, CO 80537

Professional information

Alfred Gort Photo 1

Reflecting Lens System

US Patent:
4108539, Aug 22, 1978
Filed:
Nov 18, 1976
Appl. No.:
5/742938
Inventors:
Alfred Frans Gort - Loveland CO
Charles E. Moore - Rochester NY
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
G02B 1708
US Classification:
350201
Abstract:
A tacheometer utilizes a gallium arsenide laser diode in a phase shifting distance encoder, a sinusoidal interpolator in a phase shifting shaft angle encoder, a mercury pool in a phase shifting two axis off-level encoder, a shared phase to digital decoder and a digital processor, to measure angles and distances corrected for off-level, speed of light variations, refraction and the earth's curvature. A reflecting telescope is coupled to the shaft angle encoder and is incorporated in both the phase shifting distance encoder and the alignment system. The reflecting telescope has a doublet objective lens with an embedded secondary reflective surface facing a primary mangin mirror. A biconcave element of the doublet objective lens also functions as a corrector for the secondary reflective surface. A compact objective lens system is thus realized, having minimal interference between the corrector for the secondary reflective surface and the optical path through the doublet objective lens.


Alfred Gort Photo 2

Surveying Instrument

US Patent:
4335306, Jun 15, 1982
Filed:
Oct 29, 1979
Appl. No.:
6/089007
Inventors:
Alfred F. Gort - Loveland CO
Charles E. Moore - Rochester NY
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
G01D 534
US Classification:
250231SE
Abstract:
A tacheometer includes two angle encoders each utilizing a method of eccentricity correction wherein three detectors responsive to encoded angular displacement are arranged linearly along a line passing through the desired axis of angular displacement. Two of the detectors are disposed diametrically opposite each other, at equal distances from and on opposite sides of the desired axis. In the absence of eccentricity the actual axis of angular displacement is the desired axis, and the outputs of the diametrically opposed detectors are complementary. The presence of eccentricity causes the two axes to separate, and produces a corresponding change in the outputs of the diametrically opposed detectors, rendering them non-complementary. The degree of change is measured and used to correct an angular displacement detected by the third detector, located at a different distance from the desired axis.


Alfred Gort Photo 3

Surveying Instrument

US Patent:
4346989, Aug 31, 1982
Filed:
Aug 30, 1979
Appl. No.:
6/071433
Inventors:
Alfred F. Gort - Loveland CO
Charles E. Moore - Rochester NY
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
G01C 308, G01B 1126
US Classification:
356 5
Abstract:
A tacheometer includes a distance measuring module whose output indicates the distance to a target by a phase shift in an output signal relative to a reference signal. An angle measuring module has an output that indicates angular displacement by a phase shift in another output signal relative to a different reference signal. A single phase comparison module alternately measures both phase shifts.