Buckles – buttons – clasps – etc. – Separable-fastener or required component thereof – Each mating member having similarly shaped – sized – and...
Reexamination Certificate
2001-11-16
2003-09-02
Sakran, Victor (Department: 3677)
Buckles, buttons, clasps, etc.
Separable-fastener or required component thereof
Each mating member having similarly shaped, sized, and...
C024S03050R, C024S064000, C024S399000, C024S400000, C024S585110, C383S063000, C383S065000
Reexamination Certificate
active
06612002
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to closure devices and, more particularly, to a slider, interlocking fastening strips, and a method of assembly. The inventive closure device and method may be employed in traditional fastener areas, and is particularly well suited for fastening flexible storage containers, including plastic bags.
BACKGROUND OF THE INVENTION
The use of closure devices for fastening storage containers, including plastic bags, is generally well known. Furthermore, the manufacture of closure devices made of plastic materials is generally known to those skilled in the art, as demonstrated by the numerous patents in this area.
A particularly well-known use for closure devices is in connection with flexible storage containers, such as plastic bags. In some instances, the closure device and the associated container are formed from thermoplastic materials, and the closure device and the side walls of the container are integrally formed by extrusion as a single piece. Alternatively, the closure device and side walls of the container may be formed as separate pieces and then connected by heat sealing or any other suitable connecting process. In either event, such closure devices are particularly useful in providing a closure means for retaining matter within the bag.
Conventional closure devices typically utilize mating fastening strips or closure elements which are used to selectively seal the bag. With such closure devices, however, it is often difficult to determine whether the fastening strips are fully occluded. This problem is particularly acute when the strips are relatively narrow. Accordingly, when such fastening strips are employed, there exists a reasonable likelihood that the closure device is at least partially open.
Such fastening strips are also particularly difficult to handle by individuals with limited manual dexterity. Thus, in order to assist these individuals and for ease of use by individuals with normal dexterity, the prior art has also provided sliders for use in opening and closing the fastening strips, as disclosed, for example, in U.S. Pat. Nos. 4,199,845, 5,007,142, 5,007,143, 5,010,627, 5,020,194, 5,070,583, 5,283,932, 5,301,394, 5,426,830, 5,431,760, 5,442,838, and 5,448,808.
During assembly of closure devices utilizing sliders, the sliders are often mounted onto fastening strips by moving the slider over the fastening strips in the vertical Z axis. Specifically, if the longitudinal axis of the fastening strips and slider is the X axis, the width is the transverse Y axis and the height is the vertical Z axis, the slider is attached to the fastening strips by moving the slider over the fastening strips in the vertical Z axis. In the past, sliders attached in the vertical Z axis have utilized folding design with the hinge along the X axis such as the sliders in U.S. Pat. Nos. 5,010,627, 5,067,208, 5,070,583, and 5,448,808.
Other sliders have used multiple parts which are assembled together such as the sliders in U.S. Pat. Nos. 5,007,142, 5,283,932 and 5,426,830.
Another method of installing a slider is shown in U.S. Pat. No. 5,431,760.
It would be desirable to have a continuous process for attaching a slider to the end of the fastening strips in the horizontal X axis. Such a device would reduce the manufacturing costs of closure devices utilizing sliders in addition to providing an effective and reliable means of attaching sliders to the fastening strips.
OBJECTS OF THE INVENTION
Accordingly, a general object of the present invention is to provide a slider which overcomes the deficiencies of the prior art.
A more specific object of the present invention is to provide a slider that may be attached to fastening strips in the horizontal X axis.
A further object of the present invention is to provide a slider that may be attached to the end of the fastening strips in the horizontal X axis.
Another object of the present invention is to provide a slider that once attached prevents itself from being removed from fastening strips thereafter.
SUMMARY OF THE INVENTION
The inventive closure device is intended for use with a storage container which includes a pair of complementary sheets or opposing flexible side walls, such as a plastic bag. The closure device includes interlocking fastening strips disposed along respective edge portions of the opposing side walls, and a slider slidably disposed on the interlocking fastening strips for facilitating the occlusion and deocclusion of the fastening strips when moved towards first and second ends thereof. In accordance with the present invention, a method is provided for facilitating the attachment of the slider onto the fastening strips in the horizontal X axis. In addition, the slider and fastening strips engage to prevent removal of the slider from the fastening strips in the horizontal X axis. Additionally, the slider includes offsets which provide resistance against the removal of the slider from the fastening strips in the vertical Z axis.
REFERENCES:
patent: 1564039 (1925-12-01), Laguerre
patent: 2960561 (1960-11-01), Plummer
patent: 3343233 (1967-09-01), Gould
patent: 3426396 (1969-02-01), Laguerre
patent: 3713923 (1973-01-01), Laguerre
patent: 3806998 (1974-04-01), Laguerre
patent: 4199845 (1980-04-01), Ausnit
patent: 4262395 (1981-04-01), Kosky
patent: 5007142 (1991-04-01), Herrington
patent: 5007143 (1991-04-01), Herrington
patent: 5010627 (1991-04-01), Herrington et al.
patent: 5020194 (1991-06-01), Herrington et al.
patent: 5067208 (1991-11-01), Herrington, Jr. et al.
patent: 5070583 (1991-12-01), Herrington
patent: 5283932 (1994-02-01), Richardson et al.
patent: 5301394 (1994-04-01), Richardson et al.
patent: 5426830 (1995-06-01), Richardson et al.
patent: 5431760 (1995-07-01), Donovan
patent: 5442837 (1995-08-01), Morgan
patent: 5442838 (1995-08-01), Richardson et al.
patent: 5448808 (1995-09-01), Gross
patent: 5664299 (1997-09-01), Porchia et al.
patent: 5809621 (1998-09-01), McCree et al.
patent: 5836056 (1998-11-01), Porchia et al.
Feix Thomas C.
Sakran Victor
The Glad Products Company
LandOfFree
Closure device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Closure device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closure device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3020470