Spring biasing locking mechanism for step and repeat motors

Details Spring biasing locking mechanism for step and repeat motors Spring biasing locking mechanism for step and repeat motors

2007-03-05

2008-12-30

Dougherty, Thomas M (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S323160, C310S328000

Reexamination Certificate

active

07471030

ABSTRACT:
A spring biasing locking mechanism is provided for a step and repeat motor. The motor includes a base having a channel, an output member in the channel, at least one translator drive element and first and second clamping elements. The spring biasing locking mechanism includes a locking structure joined to the base by a hinge. The locking structure spans both clamping elements. A spring biases the locking structure toward the channel so that the spring force is transmitted to the two clamping elements. The spring biased locking mechanism accommodates wear of the device, accommodates thermal expansion of the motor components, provides a limit on clamping force and provides a zero power hold condition.

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Exhibit A is a brochure entitled “Nexline Linear Motors” (1998), the contents of which Applicant admits to be prior art.
Exhibit B “Introduction to Nanopositioning Motors” (2002), by EXFO Burleigh Products Group, the contents of which Applicant admits to be prior art.

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