Communications: electrical – Digital comparator systems
Patent
1977-10-12
1979-02-06
Yusko, Donald J.
Communications: electrical
Digital comparator systems
116 63R, 40466, B60Q 146, G08B 526
Patent
active
041386680
ABSTRACT:
An electrically-powered school bus stop sign apparatus mounts either partially recessed within the exterior panel of the body of the school bus adjacent the driver or, alternatively, on the exterior panel. A DC motor and associated arm/linkage mechanical means is used to deploy and retract the stop sign blade with the controls being operated by the driver from within the bus.
REFERENCES:
patent: 2243472 (1941-05-01), Roan et al.
patent: 3133265 (1964-05-01), Fultz
patent: 3741147 (1973-06-01), Downing
Latta, Jr. Joseph E.
Stafford Virgil M.
Latta, Jr. said Joseph E.
Olive B. B.
Yusko Donald J.
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