Position and/or movement sensor with overload protection

Details Position and/or movement sensor with overload protection Position and/or movement sensor with overload protection

2006-04-11

2006-04-11

Le, Que T. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S239000

Reexamination Certificate

active

07026599

ABSTRACT:
A position and/or movement sensor for measuring a position or movement of a first object relative to a second object comprises a measuring device including a first member coupled to the first object; a second member coupled to the second object; and one or more first spring elements coupled between the first and second members; one or more stop members for limiting movement of the first member relative to the second member in at least one linear direction and/or about at least one pivot axis; and one or more second spring elements coupled between the first member and the first object. A spring constant of the second spring elements is greater than a spring constant of the first spring elements in at least one linear direction or about at least one pivot axis.

REFERENCES:
patent: 4763531 (1988-08-01), Dietrich et al.
patent: 4785180 (1988-11-01), Dietrich et al.
patent: 6044938 (2000-04-01), Yabusaki et al.
patent: 2002/0056326 (2002-05-01), Gombert et al.

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