Ink follower

Details Ink follower Ink follower

2007-02-20

2007-02-20

Walczak, David J. (Department: 3751)

Coating implements with material supply

Including floating follower in reservoir

Fluid follower

C401S141000

Reexamination Certificate

active

10532091

ABSTRACT:
An ink follower which has stable followability regardless of a pen body specification, a flow rate for writing and a writing speed and does not cause back leaking of the ink originating in shortage in the ink follower in the middle of writing and scattering of the ink follower by impact applied to the pen body and which does not flow out from the ink reservoir in storing the pen body at a high temperature and provides a stable flow rate for writing. An ink follower is also provided which prevents the ink from volatilizing by shutting off the ink from the outside air (volatilization preventing property) and which prevents the ink from leaking in writing with the pen turned upward. The ink follower, for example, contains a non-volatile or slightly volatile organic solvent and a non-styrene base thermoplastic elastomer which is soluble or swollen in the organic solvent and showing viscoelasticity which is predominant in elastic response.

REFERENCES:
patent: 4671691 (1987-06-01), Case et al.
patent: 6227738 (2001-05-01), Ogura et al.
patent: 8-142570 (1996-06-01), None
patent: 10-315682 (1998-12-01), None
patent: 2001-353993 (2001-12-01), None
patent: 2003-285591 (2003-10-01), None

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