Cutlery – Sheathed – Sliding blade
Reexamination Certificate
1999-12-20
2001-06-26
Payer, Hwei-Siu (Department: 3724)
Cutlery
Sheathed
Sliding blade
C030S335000
Reexamination Certificate
active
06249975
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a knife, and more particularly to a knife having a blade support device.
2. Description of the Prior Art
Typical knives comprise a blade slidably received in a housing or a handle. The blades may not be disengaged from the housing and may not be easily replaced or changed with the other blades when the old blade has been worn out. The housing has to be disassembled or the members of the housing should be separated from each other before the blades may be engaged into or disengaged from the housing.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional knives.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a knife having a blade support device for allowing the blades to be easily and quickly changed without disassembling the housing.
In accordance with one aspect of the invention, there is provided a knife comprising a housing including a channel formed therein, a blade support device slidably received in the channel of the housing. the blade support device including at least one spring-biased catch extended therefrom, a blade including at least one notch formed therein for receiving the spring-biased catch and for securing the blade to the blade support device, and means for disengaging the spring-biased catch from the blade to disengage the blade from the blade support device and to secure the blade to the blade support device.
The blade support device includes a spring limb formed therein and having the spring-biased catch extended from the spring limb. The housing includes a depression formed therein for aligning with and for receiving the spring limb when the spring-biased catch is disengaged from the notch of the blade. The spring limb includes a slot formed therein for increasing a resilience of the spring limb.
The blade support device includes a spring arm extended therefrom, and a knob secured to the spring arm for moving the blade support device along the channel of the housing. The housing includes a plurality of cavities formed therein, the spring arm includes a latch extended therefrom and engageable with the cavities of the housing for securing the blade support device to the housing.
The disengaging means includes a button slidably received in the housing, the button includes at least one leg extended therefrom for engaging with the spring-biased catch and for disengaging the spring-biased catch from the blade to disengage the blade from the blade support device and to secure the blade to the blade support device. The button includes a pair of spring legs extended therefrom and includes a slit formed between the spring legs. A spring biasing device is further provided for biasing the spring legs from the spring-biased catch.
Further objectives and advantages of the present invention will become apparent from a careful reading of a detailed description provided hereinbelow, with appropriate reference to accompanying drawings.
REFERENCES:
patent: 3577637 (1971-05-01), Braginetz
patent: 4242795 (1981-01-01), Rollband et al.
patent: 5644843 (1997-07-01), Young
patent: 5813121 (1998-09-01), Gringer
patent: 5870828 (1999-02-01), Polites
patent: 5890290 (1999-04-01), Davis
LandOfFree
Blade support device for a knife does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Blade support device for a knife, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blade support device for a knife will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2461784