Communications: radio wave antennas – Antennas – With support for antenna – reflector or director
Patent
1996-07-24
1997-03-25
Wimer, Michael C.
Communications: radio wave antennas
Antennas
With support for antenna, reflector or director
2481811, 248516, 248523, 343894, H01Q 302
Patent
active
056149182
ABSTRACT:
An improved Global Positioning em antenna adaptor allows fixed antenna height measurements by removably attaching an adaptor plate to a conventional surveyor's tripod. Antenna height is controlled by an antenna boom which is a fixed length rod. The antenna is attached to one end of the boom. The opposite end of the boom tapers to a point sized to fit into a depression at the center of survey markers. The boom passes through the hollow center of a universal ball joint which is mounted at the center of the adaptor plate so that the point of the rod can be fixed in the marker's central depression. The mountains of the ball joint allow the joint to be moved horizontally in any direction relative to the tripod. When the ball joint is moved horizontally, the angle between the boom and the vertical changes because the boom's position is fixed at its lower end. A spirit level attached to the rod allows an operator to determine when the boom is plumb. The position of the ball joint is adjusted horizontally until the boom is plumb. At that time the antenna is positioned exactly over the center of the monument and the elevation of the antenna is precisely set by the length of the boom.
REFERENCES:
patent: 72358 (1867-12-01), Barlow
patent: 918817 (1909-04-01), Berger
patent: 2245901 (1941-06-01), Chaskin
patent: 2575245 (1948-06-01), Carlson et al.
patent: 2804690 (1957-09-01), Talbot et al.
patent: 3195234 (1965-07-01), Glidden et al.
patent: 3239176 (1966-03-01), Johnson
patent: 3430349 (1969-03-01), Bunton et al.
patent: 3614047 (1971-10-01), Hitze
patent: 4339880 (1982-07-01), Hall
patent: 4494870 (1985-01-01), Hentschel et al.
patent: 5255005 (1993-10-01), Terret et al.
Dinardo Steven J.
Smith Mark A.
Kusmiss John H.
The United States of America as represented by the Administrator
Wimer Michael C.
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