Photography – Having variable focal length of camera objective
Reexamination Certificate
2005-02-15
2005-02-15
Gray, David M. (Department: 2851)
Photography
Having variable focal length of camera objective
C396S084000, C396S349000
Reexamination Certificate
active
06856763
ABSTRACT:
A hand-held device has a body and a deployable component mounted to the body. The deployable component is movable, with a deployment method, between undeployed and deployed positions. A drive unit is disposed within the body and engages the deployable component. The drive unit is reversibly pivotable about a drive axis from a first end orientation, through first and second ranges of intermediate orientations, to a second end orientation. An actuator that is mounted to the body is manually switchable, in forward and rearward strokes, between primary and secondary positions. The actuator at the forward stroke pivots the drive unit from the first end orientation to a second range intermediate orientation and at the rearward stroke pivots the drive unit from the second end orientation to a first range intermediate orientation. A drive over-center mechanism biases the drive unit to pivot from the second range intermediate orientations toward the second end orientation and from the first range intermediate orientations toward the first end orientation.
REFERENCES:
patent: 4772903 (1988-09-01), Labaziewicz
Allen Michael R.
DiRisio Anthony
Gray David M.
Walker Robert Luke
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