Title: Theodolite tangent screw system

Abstract: Azimuth and elevation adjustments in a geodetic instrument are provided by systems which include coaxial locking and two-speed adjustment control knobs. In each such system, the control knobs are accessible at both the front and rear of the instrument to facilitate operation in either of the forward- or back-sighting mode.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Kooi, J. Peter E. (Succasunna, NJ, US)

Application Number: 040365
Filing Date: 1979-05-18
Publication_date: 1980-05-13
Assignee: Keuffel & Esser Company (Morristown, NJ)
Primary Class(es): 33/299 33/281, D10/66
Other Classes:
US Patent Ref:

3093904	Jun, 1963	Baker	33/285.
4084327	Apr, 1978	Kooi	33/299.
4146927	Mar, 1979	Ericksen et al.	364/560.

Other Refs:
Primary Examiner: Stephan, Steven L.
Assistant Examiner:
Attorney: White; Lionel N.