US2555747A - Pressure sensitive tape dispenser - Google Patents

Description

June 5, 1951 w JOSSELYN 2,555,747

PRESSURE SENSITIVE TAPE DISPENSER Filed March 22, 1948 IE I E 4];

' INVENTOR. fiflhsar (vise/5M7 Patented June 5 1951 UNITED STATES PATENT OFFICE 5 Claims. 1

My invention relates to means for dispensing selected lengths of adhesive tape or the like from provide means for facilitating the removal of an adhesive tape from a package.

Another object of the invention is to provide means for affording a removing tab on a strip of adhesive.

Another object of the invention is to provide means for selectively rendering non-adhesive, material which normally is adhesive.

A further object of the invention is to provide means that can be incorporated with the usual or customary type of dispenser for rendering a part of the dispensed material non-adhesive.

Another object of the invention is in general to improve adhesive tape and adhesive tape dispensers.

Other objects of the invention, together with the foregoing, are attained in the embodiment of the invention, described in the accompanying description and illustrated in the accompanying drawings in which Figure 1 is an isometric projection of a tape dispenser and accompanying tape constructed and arranged in accordance with my invention.

Figure 2 is a cross section on a median plane through a loaded tape dispenser constructed in accordance with my invention.

Figure 3 is an isometric projection of a section of tape which has been dispensed from the dispenser of Figures 1 and 2.

Figure 4 is a view in isometric projection showing a part of a package having afiixed thereto a strip of tape in accordance with my invention.

Figure 5 is a cross section on a median plane through a portion of a modified form of dispenser constructed according to my invention.

In its preferred form, my adhesive tape has in general an adhesiveor tacky surface, a portion of which however has been treated to preclude adhesion, preferably by the addition of a non-tacky substance such as chalk. My dis-- penser comprises a means for paying out a strip of normally tacky or adhesive tape and for affording (preferably adjacent the normally provided, tape severing means) a supply of material,

for example a block of chalk, which when contacted with the adhesive tape will render it nonadhesive or non-tacky.

My invention has been successfully incorporated as shown in connection with a tape dispenser I, for example of the sort disclosed in Patent Number 2,275,408, issued March 10, 1942, to C. C. Alliss. In accordance with this patent, the structure includes a sheet metal framework having side walls 8 and 9 between them serving as a support for a roll II of adhesive tape. The tape can be of various kinds, and for example is a cellulose-base tape wound upon a core designed so that its central aperture permits the package I I of tape to revolve upon the supporting sidewalls. The framework I adjacent its forward portion is provided with an inwardly and upwardly inclined forward wall I2 bent into a horizontal table I3 having a serrated forward edge I4. In normal use, a strip I6 of tape is led from the roll II over the table I3, to which it tends to adhere, and is drawn out generally horizontally in a main or first predetermined path by the user until the selected length has been extended. The tape is then rather quickly moved downwardly into the dotted line position I8, shown in Figure l, and constituting a side or second predetermined path. The tape is sometimes simultaneously moved laterally across the serrated edge I 4 so that the withdrawn tape is severed from the remaining portion and becomes a separate adhesive strip.

In accordance with my invention, I provide means readily available for treating the last part of the tape withdrawn from the roll in such a manner as to render it non-adhesive. For that purpose I affix on the framework 1, preferably between the upwardly inclined forward wall I2 and the lower side of the table I3, a block of chalk 2| or comparable non-adhesive material of a size extending substantially across the width of the table I3 and terminating approximately in the plane of termination of the serrated edge With this structure, as the user grasps the normally extended tape I6 and moves it downwardly into its dotted line position I8, and tears it from the remaining roll, the terminal portion of the extending tape I8 is pressed against and wiped across the chalk block ZI. This leaves a light coating of chalk on the normally adhesive under surface of the tape I8. For a space adjacent the end of the tape approximately equivalent in area to the block, the tape is treated so that it is non-adhesive.

As especially shown in Figure 3, a strip of tape on its under surface then comprises the normally tacky surface 22 but supplemented with a nonadhesive or non-tacky surface 23 afforded by the light coating'of chalk. When the tape, as shown in Figure 3, is applied to a package all of its surface can readily be adhered to the package except the area 23 which has been chalked. Thisarea tends to remain in inclined or projecting location so that it can readily be grasped by a subsequent user and the tape can be detached. The amount of chalk in the block 2| is such as to last for the length of time that the tape on the dispenser lasts although it can readily be removed when worn and be replaced by another adhesively secured chalk block when desired. I

It sometimes occurs that the tape does not adhere to the table I3 but recoils into contact with the roll ll. Being tacky, the tape end adheres closely to the roll and can be detached and again trained over the table only with difiiculty.

To avoid this annoyance, I provide a supplementary chalk block 24 (Fig. 5) afiixed to the leading side of the wall 12 and affording a substantial continuation of the table surface. In normal operation, the block 24 does not contact the tape I6, but if the tape, in being severed or otherwise, is dislodged from the table, it is pressed against the leading chalk block 24. Being thereby rendered non tacky, the displaced end of the tape does not itself re-adhere to the roll H and consequently leaves a separate, projecting tab so that the tape can readily be retrained over the table in normal fashion.

I claim: I I

1. A tape dispenser comprising a frame adapted to hold adhesive tape for dispensing over a severing table in a main path and in a side path, and a block of chalk on said frame adjacent said table for contacting and rendering non-adhesive 4 tape passing over said table and dispensed in said side path.

2. A tape dispenser comprising a frame adapted to hold adhesive tape for dispensing over a table in a main path and in a side path, and mean on said frame adjacent said tabl for contacting and applying a non-adhesive coating to said tape passing over said table and dispensed in said side path.

3. A tape dispenser comprising a frame adapted to hold adhesive tape for dispensing over a table in a main path and in a side path, and means on said frame in said side path of tape being dispensed over said table for depositing a non-adhesive coating on said tape being dispensed.

4;. A tape dispenser comprising a frame adapted to hold adhesive tape for dispensing in two predetermined paths, means for applying a nonadhesive coating to said tape, and means for disposing said applying means on saidframe in a position to be engaged by said tape in the sec- 0nd one of said. two predetermined paths.

5. A tape-dispenser comprising a frame adapted to hold adhesive tape for dispensing, said frame including a table having an edge and upper and lower surfaces, said tape passing over said edge and in contact with said upper surface as it is being dispensed, and a block of tape-coating material mounted on said frame adjacent said lower surface and said edge in one of several paths of said tape being dispensed.

WINSOR JOSSELYN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number W Name Date 1,321,295 Duffy Nov. 1 1, 1919 1,327,420 Bro'gden Jan. 6, 1920 1,708,725 Huempfner Apr. 9, 1929 2,284,780 Vanhooser June 2, 1942

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