Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With stretching or tensioning means
Reissue Patent
1998-12-17
2001-09-04
Sells, James (Department: 1734)
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With stretching or tensioning means
C156S522000, C156S555000, C100S176000, C242S156000, C242S419900
Reissue Patent
active
RE037345
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a device which will laminate objects and which also will transfer adhesive to a substrate for purposes such as labeling.
BACKGROUND OF THE INVENTION
It is common practice to protect documents and other items by encasing them in clear plastic coverings. Various products, generally known as protectors are available for this purpose. Another common way of protecting documents is to laminate them. Lamination involves sealing the document or item between oppositely applied transparent films.
Another operation which is commonly applied to documents and papers is that of adhesive transfer. Adhesive transfer is practiced when it is desired, for example, to make labels or stickers. One manner of producing such stickers and labels is to print the stickers or labels on blanks provided for this purpose. The blanks generally have an adhesive backing and are secured to a liner from which they are peeled at the time of use. This manner of making labels or stickers is expensive and further is limiting in that the printed :material must be adapted to the physical size or confines of a label or sticker which is generally small in size.
Based on the foregoing, there exists a need for a multi-purpose machine which can both serve to apply laminates to documents and papers and which will also serve the purpose of adhesive transfer to materials of various sizes. For example, the apparatus of the present invention can apply clear plastic laminates to master substrates of various sizes and similarly can transfer adhesive to master substrates of various sizes and not limited by length. The adhesive transfer can be applied to either surface of the master as desired.
SUMMARY OF THE INVENTION
Briefly, in accordance with the present invention, a multi-purpose laminating and adhesive transfer device is provided which has a frame member with mounting means for receiving a first roll material such as a laminate or roll of film coated with releasable adhesive. A first nip roller extends transversely across the base. An upper frame member is pivotally secured to the base. The upper frame member has means for mounting or securing a roll of material such as a laminating film or a paper or film which has affinity for an adhesive. A second nip roller extends transversely across the upper frame member and, with the upper frame member positioned in the operative position relative to the base, the nip rollers engage or are closely proximate to one another. An actuator which may be powered or may be manual such as a hand crank is provided for driving or rotating at least one of the nip rollers. The upper frame member can be pivoted to an open position to facilitate loading of rolls of material in the base and upper frame member and to facilitate their insertion between the nip rollers. In an alternate embodiment, one of the nip rollers is mounted on a gibb plate so the rollers may be “opened”.
The upper and lower rollers containing the webs of laminating or adhesive transfer material have tensioning caps which can be adjusted to prevent the rollers from overrunning as they pay-out material. The tensioning caps may be pre-set by the material supplier or may be adjusted at the time of use.
A feed tray is mountable either to the base or the upper frame member for feeding the master to be processed. By way of example, the lower feed roll can be a flexible film with an adhesive and the upper feed roll a supply of film with has an affinity for adhesive. A pre-printed master such as a master consisting of labels repetitively printed on a sheet can be fed via the feed tray to the interface between the nip rollers. Adhesive will be transferred from the bottom web to the labels with excess adhesive being picked up by the top web. The labels are now provided with an adhesive and may be severed at a cutting edge provided at the rear of the device.
Accordingly, it is a primary and broad object of the present invention to provide a simple and efficient laminating and/or adhesive transfer device.
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Bradshaw Franklin C.
Soderman Thomas L.
Pillsbury Madison & Sutro LLP
Sells James
Xyron Inc.
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