B - Operations – Transporting – 43 – K
Patent
B - Operations, Transporting
43
K
B43K 24/00 (2006.01) B43K 5/17 (2006.01) B43K 24/08 (2006.01)
Patent
CA 2475861
A capless, retractable marking instrument (10) has an airtight cavity incorporated in a housing portion (14). The airtight cavity has a chamber portion (30), a wiper seal (34) at one end of the chamber portion (30) and a seal portion (32) at the opposite end of the chamber portion (30). The seal portion (32) is positioned at the forward nib end of the marking instrument (10). The seal portion (32) has an aperture (116) defined by a cross-slit construction that includes two interconnecting linear slits (118, 120). The linear slits (118, 120) define flaps (122) which flex outwardly and back corresponding to the direction of travel of the nib portion (48) of the marketing instrument (10). The flaps (122) roll outwardly when the nib portion (48) is in the extended position and when the nib portion (48) is retracted the flaps (122) gently wipe any excess ink from the nib portion (48) and return to a closed, sealed position to maintain an airtight barrier in the cavity thereby substantially eliminating evaporation of the ink through the nib portion (48).
L'invention concerne un instrument de marquage hermétique rétractable sans bouchon doté d'un compartiment hermétique incorporé dans un logement de marqueur. Ce compartiment hermétique comprend un compartiment, un segment racleur, et une bordure annulaire ainsi qu'une portion hermétique dotée d'une ouverture à fente transversale définissant des surfaces ou des rabats qui deviennent hors de contact au moyen d'une pointe de marqueur linéairement avancée afin d'ouvrir le joint permettant l'extension de la pointe de marqueur. La configuration du disque fournit une force hermétique positive entre les surfaces hermétiques latérales des rabats hermétiques. La rétraction de la pointe de marqueur repositionne les rabats dans la configuration du compartiment hermétique afin de protéger la pointe de marqueur et la cartouche de toute dégradation atmosphérique.
Lammers Anthony J.
Nottingham John R.
Plantz Jeffrey Scott
Spirk John W.
Wanhainen Daniel Jay
Innodesk Inc.
Mcfadden Fincham
LandOfFree
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