Wheel interference monitor

Details Wheel interference monitor Wheel interference monitor

1976-10-18

1978-05-02

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

180103R, 280432, 340282, G08B 2100

Patent

active

040877833

ABSTRACT:
A wheel interference monitor used with articulated vehicles and vehicles pulling connected trailers or the like, such as a tractor pulling a connected farm implement. The apparatus includes a sensor for monitoring the clearance between the drive vehicle and the pulled trailer or implement, and a circuit for providing a warning alarm to the operator if the clearance reaches a point where the operator must exercise caution, and an additional alarm for warning the operator as the clearance becomes even more critical, approaching a danger area. Also included is a control for setting in the degree of clearance at which the warning and alarm circuit will begin to go into operation.

REFERENCES:
patent: RE28590 (1975-10-01), Salmi
patent: 2213221 (1940-09-01), Johnson
patent: 3046549 (1962-07-01), Kalmus
patent: 3237177 (1966-02-01), Sparks et al.
patent: 3795285 (1974-03-01), Scholl et al.
patent: 3825921 (1974-07-01), Marus et al.
patent: 3924257 (1975-12-01), Roberts

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