Cutting – Means to drive or to guide tool – With simple rectilinear reciprocating motion only
Reexamination Certificate
1999-08-13
2001-05-01
Bray, W. Donald (Department: 3725)
Cutting
Means to drive or to guide tool
With simple rectilinear reciprocating motion only
C083S056000, C083S649000, C225S093000
Reexamination Certificate
active
06223639
ABSTRACT:
BACKGROUND OF THE INVENTION
The aluminum foil currently available on the market is generally packed in a paper box, with a serrated cutting blade fitted at an appropriate position on the outside of the packing box. To cut the foil, the user will pull a certain length and apply manual force to the aluminum foil which is aligned at a certain angle on top of the serrated cutting blade. However, in actual application, some users cannot manually control the cutting angle. Often the foil is cut in a way that the user does not want: in an unspecified direction, in an inconsistent size or shape, etc. The resulting piece of foil cannot be used—it is a waste of foil. In addition, the serrated edge that is directly exposed from the side of a packing box (to facilitate cutting process) may cut the hand of a user or a child.
In view of such shortcomings, some manufacturers have introduced some types of aluminum foil cutters, or a multi-purpose cutting device, that is combined with the roll of aluminum foil; it is in essence a slide channel that is attached to a box. The slide channel is fitted with a push handle which includes a built-in cutting knife. The aluminum foil is placed into the slide channel and the cutting edge is pushed across the channel—cutting the aluminum.
This solves the problem of safety and of cutting at an angle other than perpendicular to the lengthwise edge of the piece of foil. However, it requires that the aluminum foil be removed from its packing box, and then placing and fitting the aluminum foil withiin the cutting box. This leads to the packing box being discarded—it is now waste. In addition, and more importantly, the cutting blade is metal and therefore subject to wear and tear during the cutting process. Eventually it too will wear out as its service life is not infinite. In fact due to such wear its service life may be greatly restricted; the pieces of aluminum foil cut later my not be cut smoothly, may become twisted, etc. Again the poorly, or improperly cut aluminum foil becomes is quite inconvenient. At this point the cutting instrument is essentially useless.
SUMMARY OF THE INVENTION
The Aluminum Foil Safety Fixture is a safety device that is fixed onto aluminum foil or its packing box; it covers the aluminum foil, or the packing box's serrated metal blade, so that the aluminum foil can be cut off safely and conveniently without using the cutting blade. It is comprised of a single piece that can be fixed on the side of the box by means of clasp plates. The piece includes a slide rail, and a moveable push unit In the push unit is installed a plastic slide plate that extends toward the slide rail and at least one pair of slide pressing rollers. After a certain length of aluminum foil is pulled out, the push unit is pushed to the slide, then two rollers will press and cut the aluminum foil. The device requires no cutting blade, therefore there will be no wear, etc. that is associated with metal blades and its service life will be greater than that of a comparable metal blade slide cutting device.
REFERENCES:
patent: 4417495 (1983-11-01), Gordon et al.
patent: 4960022 (1990-10-01), Churng
patent: 5036740 (1991-08-01), Tsai
patent: 5322001 (1994-06-01), Boda
patent: 5440961 (1995-08-01), Lucas, Jr. et al.
patent: 5758559 (1998-06-01), Capital, Jr. et al.
patent: 6041988 (2000-03-01), Shapiro
Bray W. Donald
Dougherty & Troxell
LandOfFree
Aluminum foil safety fixture does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Aluminum foil safety fixture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aluminum foil safety fixture will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2509604