Molded pen cap with biasing clip

Details Molded pen cap with biasing clip Molded pen cap with biasing clip

2001-05-16

2002-04-16

Buiz, Michael Powell (Department: 3751)

Coating implements with material supply

Bifurcate pointed nib tool

Including reservoir and feeder

C401S061000, C401S098000, C401S202000, C401S213000, C401S243000, C401S244000

Reexamination Certificate

active

06371677

ABSTRACT:

TECHNICAL FIELD OF THE INVENTION
This invention relates to an assembly of a metal pen clip and a metal pen top that is retained on an end of a pen barrel, more particularly to a molded unitary metal assembly of a pen clip and a pen top, which has a three-dimensional ornamental effect and a satisfactory clamping force.
BACKGROUND OF THE INVENTION
The improvement of this invention is directed to a pen, which has a metal pen barrel, a metal pen top retained on an end of the pen barrel, and a pen clip that is connected fixedly to the pen top. It is desirable for pen consumers that an assembly of the pen top and the pen clip has a three-dimensional ornamental effect. Referring to
FIG. 1
, a first conventional pen is shown to include a molded unitary pen top
10
that is shaped as an eagle head, and a pen clip
11
that is secured to the pen barrel
13
by means of a hoop
12
. The pen top
10
is formed with an integral tongue
14
that is press fitted within an end of the pen barrel
13
. Exposure of the hoop
12
among the pen top
10
, the clip
11
and the pen barrel
13
has an adverse affect on the aesthetic design of the pen. Furthermore, because the pen top
10
and the clip
11
are two separate members, the pen appears like a patchwork, which is not satisfactory for the consumers. Although a molded metal unitary assembly of a pen top and a pen clip has been proposed heretofore in order to solve this problem, a pen clip of such a casting assembly would be relatively thick due to the need for the casting process, thereby resulting in a poor clamping force. Referring to
FIG. 2
, a second conventional pen is shown to include a pressed metal assembly of a pen clip
20
and a pen top
21
, which may be unitary. However, the shape of the pressed metal assembly is difficult to present a three-dimensional ornamental effect.
SUMMARY OF THE INVENTION
An object of this invention is to provide a pen with a molded unitary metal assembly of a pen clip and a pen top, which has a three-dimensional ornamental effect and a satisfactory clamping force.
According to this invention, a pen includes a vertical pen barrel, a mounting seat mounted fixedly on a top end of the pen barrel, and a molded metal unitary unit. The unit includes a pen top disposed swingably on the seat, and a pen clip extending integrally and downwardly from the pen top. The clip has a clamping end, which is movable relative to the pen barrel between a clamping position, where the clamping end presses against the pen barrel, and a releasing position, where the clamping end is spaced apart from the pen barrel. A biasing unit biases the clip to the clamping position.


REFERENCES:
patent: 3323494 (1967-06-01), Mutschler
patent: 3882572 (1975-05-01), Hocq
patent: 4706341 (1987-11-01), Celaries
patent: 4837900 (1989-06-01), Boyce et al.
patent: 5570965 (1996-11-01), Coolen
patent: 3903415 (1990-08-01), None

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