Ball-point pen venting arrangement

Details Ball-point pen venting arrangement Ball-point pen venting arrangement

1985-09-27

1987-06-02

Bratlie, Steven A.

Coating implements with material supply

Including ball, roller or endless-belt tool

Ball

401135, 401199, 401217, B43K 708, B43K 700

Patent

active

046699066

ABSTRACT:
A ball-point pen for water-soluble ink having a barrel with a vent hole, a cylindrical ink reservoir covered except at its exposed front and rear ends, and an ink feed core for supplying ink from the reservoir to a ball at the pen writing tip is provided with a hollow inner cover member comprising a cylindrical holding part for covering and holding a relatively long front portion of the reservoir and a cylindrical shielding part for partitioning the front exposed part of the reservoir and the feed core from the vent hole, the inner cover member being secured within the barrel by press-fitting the front end of the shielding part into a bore of the front end part of the barrel. Passages are provided for communication between the vent hole and the rear exposed end of the reservoir. Leakage of ink due to causes such as temperature change and impact force imparted to the barrel in the longitudinal direction thereof is thereby prevented. A tip holding member holding therein a ball point holder is press-fitted into a bore of the barrel front end part. A rear plug is also press-fitted into the barrel.

REFERENCES:
patent: 2870742 (1959-01-01), Hackmyer
patent: 3362778 (1968-01-01), Pavese
patent: 3554658 (1971-01-01), Malm et al.
patent: 4209263 (1980-06-01), Droubay

Affiliated with

Also associated with

Rating

Ball-point pen venting arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ball-point pen venting arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ball-point pen venting arrangement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-610002