发明名称 |
Sustained release ink dispenser |
摘要 |
An ink dispensing device is disclosed wherein the ink releasing member comprises two layers that serve different purposes. The layer which contacts a printing font is made of a porous material that has an open pore size of less than 30 microns and a porosity of 40% to 85%. The second layer is adjacent to the contact layer and is made from an elastic foam with larger pore size, in the range of 80 microns to 1000 microns and a porosity of greater than 70%. The second layer is impregnated with ink and acts as a reservoir for the first layer, the latter serving as a metering member.
|
申请公布号 |
US5136968(A) |
申请公布日期 |
1992.08.11 |
申请号 |
US19900459613 |
申请日期 |
1990.01.02 |
申请人 |
PITNEY BOWES INC. |
发明人 |
SARADA, THYAGARAJ;AUSLANDER, JUDITH D.;BERNARD, RICHARD |
分类号 |
B41K1/54 |
主分类号 |
B41K1/54 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|