Cover for scriber

Coating implements with material supply – Bifurcate pointed nib tool – Including reservoir and feeder

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

401242, B43K 518

Patent

active

040959074

ABSTRACT:
A capillary writing pen of the type having an expansion or compensation chamber intermediate the ink reservoir and ambient air. The expansion chamber is improved such that inadvertent flowing of ink reservoir to the capillary pen tip due either to pressure or temperature changes is avoided. The interior wall of the expansion chamber is profiled as a contiguous series of transverse indentations which provide successive expansion areas for entrapment of air and constrictive areas where menisci of ink are formed. The forming of the menisci entraps air bubbles within the ink and, accordingly, provides increased resistance to capillary flow of ink.

REFERENCES:
patent: 637439 (1899-11-01), Wolter
patent: 2521657 (1950-09-01), Severy

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Cover for scriber does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cover for scriber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cover for scriber will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1131885

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.