Illuminating utility knife with easy-access spare blade drawer

Details Illuminating utility knife with easy-access spare blade drawer Illuminating utility knife with easy-access spare blade drawer

2000-11-27

2002-09-24

O'Shea, Sandra (Department: 2875)

Illumination

With implement or hand held holder therefor

Hand tool

C362S120000, C362S207000, C362S208000, C007S118000, C007S119000, C030S125000, C016S111100

Reexamination Certificate

active

06454427

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a utility knife, especially to a utility knife having an illuminating device and wherein the spare blades thereof are easily accessible from the body of the knife.
2. Description of Related Art
Shown in
FIG. 5
is an exploded view of a present utility knife. The knife has a housing including a pair of covers (
40
) coupled together and fastened by a screw (
45
). There are two sections in the housing: a front room and a rear room (
43
). A blade (
41
) is slidably contained in the front room and installed on a control assembly (
42
). The control assembly (
42
) has a button which protrudes out from the housing. By manipulating the button, a user can move the blade (
41
) to protrude from or retract into the housing. One or more spare blades (
44
) are contained in the rear room (
43
).
This kind of conventional utility knife has two drawbacks. One drawback is that the spare blades (
44
) are contained in the rear room (
43
) and can only be taken out for use after the screw (
45
) is removed. If the spare blade (
44
) is taken out for use due to the original blade being blunt etc, it is very inconvenient to remove the screw (
45
), take out the spare blade (
44
), and then install the screw (
45
) again.
The other drawback is that the conventional utility knife does not have an illuminating device and under dimly-lit working conditions, such kind of utility knife is inconvenient.
SUMMARY OF THE INVENTION
The main object of the invention is to provide a utility knife having an illuminating device being able to help a user work in a dimly-lit environment with the knife.
Another object of the invention is to provide a utility knife wherein the spare blades of which are easily accessed from a body of the knife, thus bringing much convenience for a user.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.


REFERENCES:
patent: 5430952 (1995-07-01), Betts
patent: 5459647 (1995-10-01), Betts
patent: 5713656 (1998-02-01), Lin
patent: 5916277 (1999-06-01), Dallas
patent: 6041505 (2000-03-01), Chen
patent: 6273582 (2001-08-01), Taggart et al.
patent: 6286745 (2001-09-01), Ackeret

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