Electronic pen with retractable and replaceable cartridge

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8287204
APP PUB NO 20090315864A1
SERIAL NO

12477875

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Abstract

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An electronic pen comprises a user-replaceable cartridge having a nib, a force sensor for sensing a nib force transmitted axially through the cartridge from the nib and a retraction mechanism for retracting the cartridge. The retraction mechanism comprises a barrel adapted for seating the cartridge in either an extended position or a retracted position, and a first biasing mechanism for biasing the cartridge towards the extended or retracted positions. A second biasing mechanism biases the barrel towards engagement with the force sensor.

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Patent Owner(s)

  • SILVERBROOK RESEARCH PTY LTD

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brice, Robert John Balmain, AU 32 167
Lapstun, Paul Balmain, AU 1600 28381
Silverbrook, Kia Balmain, AU 5829 89799
Szarka-Kovacs, Zsolt Balmain, AU 11 125
Underwood, Matthew John Balmain, AU 27 988

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