Rotation responsive disk activation and deactivation mechanisms

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(12)

United States Patent

Ferren et al.

(io) Patent No.: (45) Date of Patent:

US 7,907,486 B2 Mar. 15, 2011

(54) ROTATION RESPONSIVE DISK ACTIVATION AND DEACTIVATION MECHANISMS

(75) Inventors: Bran Ferren, Beverly Hills, CA (US);

Edward K. Y. Jung, Bellevue, WA (US);
Clarence T. Tegreene, Bellevue, WA
(US)

(73) Assignee: The Invention Science Fund I, LLC,

Bellevue, WA (US)

( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 206 days.

(21) Appl.No.: 12/229,502

(22) Filed: Aug. 22, 2008

(65) Prior Publication Data

US 2009/0022023 Al Jan. 22, 2009

Related U.S. Application Data

(62) Division of application No. 11/471,970, filed on Jun. 20, 2006, now Pat. No. 7,512,959.

(51) Int. CI.

G11B 7/00 (2006.01)

(52) U.S. CI 369/47.39; 369/47.1; 720/719

(58) Field of Classification Search None

See application file for complete search history.

(56) References Cited

Page 2

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