Communications: electrical – Land vehicle alarms or indicators – External alarm or indicator of movement
Patent
1988-07-18
1990-04-24
Crosland, Donnie L.
Communications: electrical
Land vehicle alarms or indicators
External alarm or indicator of movement
340463, 340464, 340479, 200 6145R, 200 6152, 200 6147, B60Q 150, H01H 3502
Patent
active
049203304
ABSTRACT:
A mercury inertial transducer includes a casing which defines an essentially L-shaped cavity having a substantially horizontal lower arm and a substantially vertical ascending arm; a volume of mercury which, in the rest condition, occupies the lower arm and essentially does not occupy the ascending arm; an input electrode which penetrates the lower arm from the outside and is permanently immersed in the mercury, and a series of separate output electrodes which are spaced along the ascending arm and can be reached in succession by the mercury when it rises in the ascending arm due to an inertial force directed along the lower arm towards the ascending arm. The transducer may be incorporated in a unit including a support which can be fixed to a movable object, such as a motor vehicle, and on which the transducer is mounted so that the inclination of its lower arm to the horizontal and of its ascending arm to the vertical can be adjusted. The transducer may also be incorporated in a deceleration and stopping indicator including an elongate hollow body provided with means for fixing to the bodywork of a motor vehicle and carrying an array of electrical light units spaced along its length. These light units are aligned transverse the vehicle and face rearwardly with respect to the direction of travel. The inertial transducer is mounted in the hollow body and its output electrodes are each connected to at least one of the light units.
REFERENCES:
patent: 2108791 (1938-02-01), Alden
patent: 2823367 (1958-02-01), Huron
patent: 3157854 (1964-11-01), Riley
patent: 3320586 (1967-05-01), Wagner
patent: 3622980 (1971-11-01), Elledge, Jr.
patent: 3739191 (1973-06-01), Nagazumi et al.
patent: 3973092 (1976-08-01), Breed et al.
patent: 4107647 (1978-08-01), Yoshino
patent: 4275378 (1981-06-01), Henderson
patent: 4303906 (1981-12-01), Weakley
patent: 4574269 (1986-03-01), Miller
patent: 4682146 (1987-07-01), Friedman, III
patent: 4700277 (1987-11-01), Moore
B.P.T. S.p.A.
Crosland Donnie L.
LandOfFree
Mercury inertial transducer and light-emitting indicator for mot does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mercury inertial transducer and light-emitting indicator for mot, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mercury inertial transducer and light-emitting indicator for mot will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-36176