Multi-step locking eye cup twist up device
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United States of America Patent
Stats
-
Dec 11, 2007
Grant Date -
Feb 3, 2005
app pub date -
Jul 29, 2003
filing date -
Jul 29, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention is a Twist Up device that consists of multiple pin-movement sections and pin-stopping sections. The pin-movement sections have Twist Up adjustment grooves in multiple steps, and these adjustment grooves allow the Twist Up ring to move the Twist Up adjustment pins in the direction of the set grooves. The pin-stopping sections are positioned next to the pin-movement sections so that they can stop the Twist Up adjustment pins to prevent the Twist Up ring to move in the direction of the set grooves.
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