Document feeder window closed detection assembly

Details Document feeder window closed detection assembly Document feeder window closed detection assembly

1990-05-18

1991-04-16

Scott, J. R.

Electricity: circuit makers and breakers

Special application

Actuated concurrently with operation or use of art device

200332, H01H 316

Patent

active

050085000

ABSTRACT:
The invention relates to a system for detecting the open or closed state of a hinged window (14) in a wall (11) of a document track. The state of the window is sensed by a micro-switch (22) operated by a lever (21). The lever has one arm (31) which operates the plunger of the micro-switch and another arm (33) which senses the position of the window relative to the wall (11). When the window is open, the spring loading on the micro-switch plunger (37) acts on the arm (31) to rotate the lever (21) clockwise with respect to the window frame. When the window is closed, engagement between the wall (11) and the front face (38) of a projection (34) on the lever arm (33) rotates the lever anticlockwise relative to the window frame so that the projection (32) on the lever arm (31) depresses the micro-switch plunger against the spring loading.

REFERENCES:
patent: 4264793 (1981-04-01), Mailloux
patent: 4277657 (1981-07-01), Kleinschmidt et al.

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