Signals and indicators – Vehicle – Curb feelers
Patent
1982-09-27
1987-10-06
Frankfort, Charles
Signals and indicators
Vehicle
Curb feelers
293 9, 293117, B60Q 1100
Patent
active
046975411
ABSTRACT:
A crossing arm unit for use on the front of school buses and the like to protect children walking in front of the school bus, the crossing arm unit including a frame attached to the front bumper of the school bus, and a movable arm pivotally mounted in the frame for movement between a retracted position along side the bumper and an extended position projecting outwardly from the bumper. The movable arm includes a pivot plate having a relatively small extending length and being formed of relatively heavy, strong metal, a support plate connected to the pivot plate to extend therefrom, the support plate being formed of a lighter material and having an extending length substantially greater than that of the pivot plate, and a U-shaped metal rod having a closed end portion and leg portions extending along the length of the support plate and being joined thereto at spaced locations, the rod having an extending length from the support plate that is substantially greater than the extending length of the support plate. A conventional drive is provided to move the arm member between its extended and retracted positions.
REFERENCES:
patent: 1727838 (1929-09-01), Miyaoka
patent: 2196561 (1940-04-01), Lester
patent: 3153398 (1964-10-01), La Verne Runkle
patent: 3236552 (1966-02-01), Percifull
patent: 4052957 (1977-10-01), Lee
Frankfort Charles
Specialty Manufacturing Company
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