Measuring and testing – Surface and cutting edge testing – Roughness
Patent
1993-08-23
1994-10-18
Chilcot, Jr., Richard E.
Measuring and testing
Surface and cutting edge testing
Roughness
7317005, 340949, G01P 1300
Patent
active
053557247
ABSTRACT:
An optically broadcasting wind direction indicator generates flashes of light which are separated by a time interval that is directly proportional to the angle of the wind direction relative to a fixed direction, such as north. An angle/voltage transducer generates a voltage that is proportional to the wind direction relative to the fixed direction, and this voltage is employed by timing circuitry or a microprocessor that generates pulses for actuating a light source trigger circuit first at the start of the time interval, and then at the end of the time interval. To aid an observer in distinguishing between the beginning and end of the interval, two stop flashes can be provided in quick succession. The time scale is preferably chosen so that each second of the time interval corresponds to 30.degree. of direction relative to north. In this manner, an observer can easily correlate the measured time interval to the wind direction by visualizing the numbers on a conventional clock face, each of which correspond to one second of time and 30.degree. of angle.
REFERENCES:
patent: 1874214 (1932-08-01), Werner
patent: 1879267 (1932-09-01), Hurni
patent: 1976706 (1934-10-01), Werner
patent: 1989295 (1935-01-01), Sewell
patent: 2079861 (1937-05-01), Keith
patent: 2449480 (1948-09-01), Houck
patent: 2619527 (1952-11-01), Gray
patent: 3164801 (1965-01-01), Nicholl
patent: 3447129 (1969-05-01), Birmingham et al.
patent: 3885876 (1975-05-01), Konopka
patent: 3925704 (1975-12-01), Camic
patent: 4093937 (1978-06-01), Habinger
patent: 4241604 (1980-12-01), Hergenrother
patent: 4287762 (1981-09-01), Baer
patent: 4812844 (1989-03-01), Kallstrom
Chilcot Jr. Richard E.
Dougherty Elizabeth L.
Kennedy Alan J.
Miller Guy M.
Sheehan William J.
LandOfFree
Optically broadcasting wind direction indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optically broadcasting wind direction indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optically broadcasting wind direction indicator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2364660