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Generated January 22, 2018

Device with spring-loaded curved tongues for holding an optical disk around a rotary shaft of a motor

Patent Number: 6,845,512

Patent Information

Abstract
A device includes a casing having a plurality of equispaced openings formed around, and a plurality of spring-loaded radial tongues partially extended out from and retractable into the openings. Each of the radial tongues has a lower curved surface with a constant curvature in any imaginary contour line throughout at least one area of the lower curved surface. Furthermore, the constant curvature is exactly the same as the curvature of the rounded inner edge of the optical disk to be held.
Patent Number: 6,845,512
Issue Date: 2005-01-18

Primary Category

Biographical Information

Executive Summary

Summary

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It has ► Log In claims, which is ► Log In than average for this category.

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Patent Grant Time

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Patent grant time can be influenced by many factors. Activities within the USPTO that are beyond the control of patent attornies can influence grant time, but short grant times can also indicate well-written patents and dedicated efforts to respond rapidly to USPTO office actions with strong arguments. Shorter grant times are preferable, and the scores for this section are inverse measures — higher scores are better.

Patent Claims

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The number of claims in a patent is correlated with its strength. Because greater claim counts increase the cost of a patent, more claims can indicate the importance an applicant assigns to a patent. Importantly, some may elect to file claims across multiple patents. A higher score in this metric indicates more claims, relative to others in this category.

Citations From Other Patents

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Citations to Other Patents

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Research and Innovation Indicators
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Proximity to Basic Research

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Proximity to Basic Research

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Proximity to basic research is measured by comparing the number of citations to non-patent literature among a cohort of patents. Because most non-patent citations are primary research papers, a higher count indicates greater proximity to basic research.

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Citations

Patents cited by this patent

Patent Title
6,611,490 Clamping device for a disc-shaped information carrier
6,525,441 Spindle motor having disc mounting portion
6,487,162 Disc clamping device with self lock elements
6,363,048 Disc clamp mechanism
6,040,649 Support structure apparatus for a spindle motor of a compact disc machine

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