发明名称 |
DOUBLE SEAL SYSTEM FOR PRESSURIZED WRITING DEVICE |
摘要 |
A writing device (10) generally including a uniformly cylindrical main body (12) partially filled with a writing medium such as ink (14). A writing tip (19) is inserted into a first end (16) of the main body (12) and a first sealing member (24) is inserted into the second end (20) thereof. The first sealing member (24) is located in the main body (12) near the second end (20). A pressurized gas such as nitrogen (26) is disposed in the body (12) between the ink (14) and the first sealing member (24). Alternatively, a gas forming means may be located in the main body (12) to continually produce a gas as the ink (14) is depleted to maintain pressure therein. A second sealing member (28) is inserted into the second end (20) of the main body (12) to provide a dual seal gas pressurized system.
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申请公布号 |
CA2309108(C) |
申请公布日期 |
2004.08.10 |
申请号 |
CA19982309108 |
申请日期 |
1998.11.02 |
申请人 |
BIC CORPORATION |
发明人 |
RUKAN, RONALD S.;CHADWICK, BARRY W. |
分类号 |
A46B5/02;B05C17/00;B43K7/03;B43K7/08;(IPC1-7):B43K7/08;B43K5/00;B43K5/02;B43K7/00;B43K7/02 |
主分类号 |
A46B5/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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