Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
1999-07-06
2001-05-15
Maki, Steven D. (Department: 1733)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S227000, C156S267000, C156S269000, C156S291000
Reexamination Certificate
active
06231712
ABSTRACT:
BACKGROUND OF THE INVENTION
Note pads having pressure-sensitive adhesive applied to the rear surfaces of the individual sheets comprising the pad are well known. These sheets, which are removed from the pad one sheet at a time, are temporarily adhered to an object by the adhesive on the sheet to be employed for memorandums or messages or to mark book pages or other materials. In business and legal office practice, it is common to use these sheets to identify the subject matter of a dictated microcassette that is being sent to a typist for transcription. Typically, a file or other document is associated with the microcassette, and it is desirable to keep the document and the cassette together for the benefit of the typist. It is common to use a rubber band, metal clip, or other mechanical securing device to keep the microcassette and the document together with the note sheet.
Another situation that requires the use of mechanical securing devices with a note sheet occurs when it is desired to associate a note sheet with a small object, such as a key. If the object and the note sheet are to be displayed in a prominent area or an otherwise desired posting place, a means is needed to secure both the object and the note sheet to the desired posting location. This will usually entail the use of a fastener, such as cellophane tape, a thumbtack, or some other mechanical device that secures the note sheet and the small object to the desired posting place.
Problems may also be encountered in attaching the note sheet, either alone or with a small object, to an irregular posting surface or in attaching an irregularly shaped object to a smooth posting surface. Attaching conventional note sheets having pressure-sensitive adhesive to irregular surfaces can be difficult because of the limited surface contact between the irregular surface and the adhesive areas of the sheet. Additionally, forcing the adhesive area on the sheet to adhere to the irregular surface can distort the note sheet, making the message area wrinkled and difficult to read or access.
BRIEF SUMMARY OF THE INVENTION
In one preferred form of the invention, adhesive provided on the front and back of a paper note sheet secures the back of the sheet to an object and secures an object to the front of the sheet. An adhesive-free space provided on the front of the sheet receives markings such as a short note. The sheet is dispensed from a pad of sheets.
The note sheets of the pad in one form of the invention are folded upon themselves to prevent adhesive from being exposed on the top sheet of the pad.
In a modification of the invention, the adhesive-containing area at one end of the sheet is cut to form strips or tabs that are free to move away from the plane of the uncut area of the sheet to better adhere to an irregular surface or object. The uncut area on the reverse side of the opposite end of the sheet is provided with adhesive for preferential contact with a smooth surface. If the supporting or posting surface for the sheet is smooth, the uncut portion of the sheet is applied to the support surface. If the surface of the support is irregular, the strips or tabs of the cut portion of the adhesive area are applied to the support surface. In either situation, the cut adhesive section may be preferentially applied to the supporting or to the supported object, depending upon the extent of the surface regularity of the two objects. A modification of this form of the invention includes a sheet in which cuts formed in the adhesive area extend through the sheet edge so that the strips or tabs have a free end.
A preferred method of manufacturing one form of the invention comprises the steps of applying adhesive to the front and back of a strip of paper at spaced locations along the length of the strip. The strip is folded in layers, accordion-style, with one layer free of adhesive and the adjacent layer having adhesive on its front and rear sides. The fold side of the resulting pad of layered folds, adjacent the adhesive area, is cut away to separate the sheets into individual folded sections. The sections are held together by the adhesive in the folds to retain the separated sheets in the pad. No adhesive remains exposed at the top of the pad. Two pads may be fabricated by folding the strip such that the adhesive is in the center area of a fold and then cutting the pad in two along the center area.
Where the sheet is intended to be used to support physical objects, a larger percentage of the sheet will carry adhesive, both to better adhere to the supporting medium, as well as to better hold the supported object. As much as 20% or more of one or both sides of the sheet may be provided with adhesive for these applications.
From the foregoing, it will be appreciated that a primary object of the present invention is to provide a sheet of note paper that can secure two objects together.
Another object of the present invention is to provide note paper sheets in a pad with the individual sheets being removable from the pad to be used for securing two objects together and for providing space for a written message.
It is also an object of the present invention to provide a method for manufacturing a pad of note paper sheets in which adhesive is applied to both sides of each sheet of the pad.
Another object of the invention is to provide a pad of double-sided adhesive paper sheets in which the paper sheet at the top of the pad has no exposed adhesive.
Yet another object of the present invention is to provide a sheet of double-sided adhesive paper that may be posted on a first object, a message written upon the front of the sheet, and the sheet folded upon itself to adhere to the exposed adhesive on the paper surface to cover the message and the exposed adhesive.
Yet another object of the present invention is to provide a sheet of note paper having a pressure-sensitive adhesive applied to one or more areas of the sheet with cut sections provided in one of the adhesive areas whereby the cut area of the sheet forms strips or tabs that may be made to better conform and adhere to an irregular surface.
Still another object of the present invention is to provide a note sheet that has strips cut to one edge of the sheet, with adhesive carried on the strips, to allow the sheet to be adhered to an irregular surface to increase the adhesive forces between the sheet and the irregular surface and to prevent the message area of the sheet from being distorted.
REFERENCES:
patent: 3884443 (1975-05-01), McMaster
patent: 4416392 (1983-11-01), Smith
patent: 4770913 (1988-09-01), Yamamoto
patent: 4895746 (1990-01-01), Mertens
patent: 5098786 (1992-03-01), Hanke
patent: 5202169 (1993-04-01), Spendlove
patent: 5366776 (1994-11-01), Mertens
patent: 5622761 (1997-04-01), Cole
patent: 5630898 (1997-05-01), Judkins
Browning & Bushman P.C.
Maki Steven D.
Musser Barbara J.
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