Writing instrument

Details Writing instrument Writing instrument

2006-10-31

2006-10-31

Walczak, David J. (Department: 3751)

Coating implements with material supply

Projectable and retractable tool

Including retraction spring and projected-position retainer

C401S109000

Reexamination Certificate

active

07128489

ABSTRACT:
A writing instrument that includes a sleeve-like housing, a reservoir axially extending in the housing, a push button positioned in the rear portion of the housing, a latching device for latching the push button in a writing position with a latch recess in the housing and a latch lug positioned at the free end of a transversely elastically bendable spring arm extending from the push button. The writing instrument also includes a shift device for releasing the latching device and returning the latch lug into a parking position, and a support member disposed at the push button that includes a support surface which stops the latch lug from lateral movement into the latch recess when being moved back from a position moved forward beyond the writing position. In order to enhance the arrangement of the support member in the writing instrument, the support member is disposed at a peripheral wall portion of the push button.

REFERENCES:
patent: 3432244 (1969-03-01), Bross
patent: 5145272 (1992-09-01), Keil
patent: 6390706 (2002-05-01), Yokouchi et al.
patent: 6390707 (2002-05-01), Kageyama et al.

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