Positioning mechanism and positioning mechanism for film...

Details Positioning mechanism and positioning mechanism for film... Positioning mechanism and positioning mechanism for film...

2005-03-01

2005-03-01

Mack, Ricky (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S699000

Reexamination Certificate

active

06862145

ABSTRACT:
A positioning mechanism includes a moving body which can be moved in accordance with a drive force supplied from a drive source, a stopper which defines a movement extremity of the moving body, and a biasing device which engages with the moving body when the moving body is moved to the vicinity of the movement extremity and which converts, after engagement, the force from the moving body into a force to bias the moving body toward the stopper.

REFERENCES:
patent: 2995061 (1961-08-01), Briskin et al.
patent: 3781098 (1973-12-01), Heiniger et al.
patent: 3897698 (1975-08-01), Ohsaka
patent: 4137782 (1979-02-01), Lange
patent: 5950028 (1999-09-01), Ito
patent: 6318662 (2001-11-01), Hori et al.
patent: 6682157 (2004-01-01), Ito

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