Retractable ball-point pen

Details Retractable ball-point pen Retractable ball-point pen

1997-03-11

1999-12-07

Walczak, David J.

Coating implements with material supply

Projectable and retractable tool

Including retraction spring and projected-position retainer

401110, B43K 516

Patent

active

059972041

ABSTRACT:
An operating mechanism of a retractable ball-point pen including a ring mounted over a pin. The pin has at one end thereof a push button and at the other end thereof a portion having a greater diameter. Additionally, the pin has at least one pair of ribs which interact with grooves and saw-toothings on at least one end of the ring. The ends of the ribs are preferably provided with inclined lifting surfaces. To facilitate assembly, the saw-toothings may be symmetrically formed such that the direction of insertion into a pen housing is not critical. Preferably, the saw-toothings of the ring extend only over an inner partial portion of the wall thickness of the ring and the outer partial portion of the wall thickness of the ring forms a plane end face. A pen housing in which the operating mechanism may be positioned has axially extending supports configured to support the ring, preferably by engaging the plane end face of the ring.

REFERENCES:
patent: 1332378 (1920-03-01), Bramming
patent: 3064624 (1962-09-01), Hechtle
patent: 3792931 (1974-02-01), Ganz
patent: 4991988 (1991-02-01), Snell et al.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-816901