US2470342A - Dispenser for adhesive tapes - Google Patents

Description

Z'L. De la is;

V L DE LUISI ETAL DISPENSER FOR ADHESIVE TAPES Filed Sept. 27, 1946 Charles I. MurZ/auy/z 7/621. 777W abbwa May 17, 1949.

Patented May 17, 1949 UNITED STATES orrics Vincent L". De Lui's'i and Gharles-FLMurtaugh; Columbugflhio Application September 27, 1946, Serial Nil-699,720

uniting articles of di'iferent material to 'oneanother.

Tapes of this character are generally provided with an extremely sticky adhesive surface which makes the handling of the tape extremely difil'cul-t under ordinary conditions, as

the tape tends to adhere firmly to the handshand fingers of a user when applying the same to surfaces to be joined. I

It is also desirable to maintain tape ofthis character in a clean condition-as dirt or other foreign particles will quickly adhere to the sticky surface of the tape and consequently impair the adhesive qualities thereof.

Ordinarilm adhesive tapes are supplied: in con- .tinuous lengthswhich are wound or rolled about a tubular core or spool of cardboard, orother suitable material with the sticky surface of the tape positioned to the-center of the roll, thus protecting this'surlace from dirt, and from becoming dried by the atmosphere; but the problem 'of handling the tape still manifests itself even when so rolled.

Accordingly, the present invention provides a hollow cylindrical container adapted to receive a roll of such tape and to dispense the same through an opening provided in its outer curved surface in a manner to preclude unnecessary handling by the user; the container being further provided with a cutting edge which conveniently enables the user to cut a desired length of tape without further handling.

For a further and more detailed understanding of the present invention, reference is made to the following description and appended drawing wherein:

Fig. 1 is a perspective view of the improved tape dispenser;

Fig. 2 is a transverse vertical sectional view taken through the dispenser;

Fig. 3 is a longitudinal vertical sectional view thereof;

Fig. 4 is.alperspectiveviewcf one of the semi circular shells which forms the lower portion of the dispenser;

. Fig, .5' is a detailed.sideelevational view of "the cutting lip of the dispenser;

Fig. 6 is. adetailed front elevational view thereof.v

Referringnowtolthe drawing, it will be .noted that the improved tapedispenser embodies apair of hollowsemicircularshellslll and H respectively, which are adapted. to bemated, alongtheir flat edges toform a substantially hollowcylinder, as shownin Fig. l. Preferably, the shells are formed from an inexpensivesynthetic resin of either a. thermoplastic. or thermosettingv type, such .as-cellulose or vinyl base. resins.

Each of the shells areformedlat their flat side wallswith a.pair of oppositely. disposed inwardly projecting semicircularledges [2. which, when the shells are joined, form. a pair. of, circular hubs. The. ledges II, when joined,,serve to project in.- wardly ofthe ends of a. cylindrical paperboard or cardboard core 13 Whichcore serves asv a foundationlfor the. continuous roll. of adhesive time HZ. Upon insertionpf the rolledtape within theshells, thelower. shell. H of the dispenser is resiliently spread. by. pressing inwardly. upon its upper peripheral edgeslso'asto expandthe side wallsand-the ledges l2, at which, time the roll is insertedso-that the. ledges will register with the-core. I3, andthe ledges areallowed to return to their normal positions by releasing the com.- pressive forces uponethe shell. The upper shell I 0 is also squeezed to extend its side walls and positioned upon the: lower shell. with its ledges positioned in registration with the remaining opening of the circular core l3. The compressive forces on the upper shell are then released and its ledges will project inwardly of the core so as to rotatably maintain the rolled tape within a substantially enclosed cylinder.

In detaching the two shells to remove the core, the above process is repeated so as to expand the ledges and withdraw the same from within the ends of the core I3.

The lower shell II is recessed as at [5 at one of its adjoining peripheral edges to form a slot IS with the adjoining edge of the upper shell II]. This slot serves as an opening through which an end of a rolled tape l4 may be passed and drawn out of the cylinder. An arcuate lip I 1 is positioned adjacent to the slot 5 and extends downwardly over the peripheral edge of the lower shell II. The lip is joined with the material of the lower shell by cementing, or suitably joining the same in a manner so as to firmly adhere to the outer peripheral surface of the shell. The upper end of the lip l1 extends slightly inwardly of the opening to form a downwardly directed opening for guiding the end of the rolled tape in a substantially tangential manner over the outer surface of the lip. The lower end of the arcuate lip l1 terminates in a substantially tangential plane with respect to the bottom of the lower shell I l, and is provided with a metallic cutting edge l8 secured thereto by means of rivets or screws l9.

In operation, the rolled tape is positioned first within the lower shell H around its ledges I2, at which time the end of the tape is drawn outwardly through the slot 16 and over the arcuate lip ll. At this time, the upper shell I is positioned in mating engagement with the lower shell with its inwardly directed ledges l2 projecting within the ends of the core I3. In this manner, the core will serve to hold the two shells in relative engagement and will prevent the same from being accidentally separated. When it is desired to use a length of the adhesive tape, the free end may be applied to the surfaces to be joined and the remainin length withdrawn from within the cylinder and out or torn across the cutting edge [8. It will be manifest that the remaining end of the rolled tape will adhere to the arcuate lip and will be accessible for subsequent use. In this manner, the tape may be applied to surfaces independent of handling by the user, with the exception of initially detaching the end of the tape from the arcuate lip I1.

In view of the foregoing, it will be seen that the present invention provides a greatly simplified and useful dispenser for rolled tapes of various kinds. The dispenser serves as a convenient means of maintaining the tape in a clean and dry condition, and precludes unnecessary handling during joining operations. While the present invention has been described primarily as a dispenser for so-called Scotch tapes, the same is equally adaptable for use with medical adhesive tapes, friction tape, and various other forms of insulating tapes. The invention is characterized by its ease of operation, structural simplicity and its economy of manufacture.

While a, preferred embodiment of the present invention has been described in detail, it will be manifest that various modifications are possible without departing from the spirit of the invention or the scope of the following claims.

We claim:

1. A dispenser for rolled tape of the type provided with a central tubular core comprising a pair of mating semicircular shells adapted for detachable connection with one another to form a substantially hollow cylinder, each of said shells being formed with a pair of inwardly projecting semicircular ledges adapted to form circular end hubs with the corresponding edges of the opposite shell when the two shells are connected, said hubs being adapted for insertion within the respective ends of said core to rotatably maintain the rolled tape within said cylinder, one of said shells being recessed along one of its adjoining peripheral edges to form a slot through which an end of the rolled tape may pass exteriorly of said cylinder, and a cutting edge carried by the outer curved surface of one of said shells.

2. A dispenser for rolled tape of the type provided with a central tubular core comprising a pair of hollow semicylindrical shells open along their diametrical edges, each of said shells being formed with oppositely disposed inward projecting semicircular ledges adapted to form a pair of circular hubs with the corresponding ledges of the opposite shell, said hubs being adapted for insertion within the ends of the tubular core of said tape, said hubs when so inserted serving to hold said shells in relative mating engagement and to rotatably maintain said rolled tape within said shells, and a slot formed in the peripheral wall of one of said shells, said slot serving as an opening through which an end of the rolled tape may be passed exteriorly of said shells.

3. A dispenser for rolled tape of the type provided with a central tubular core comprising a pair of hollow semicylindrical shells open along their diametrical edges, each of said shells being formed with oppositely disposed inwardly projecting semicircular ledges adapted to form a pair of circular hubs with the corresponding ledges of the opposite shell, said hubs being adapted for insertion within the ends of the tubular core of said tape, said hubs when 50 inserted serving to hold said shells in relative mating engagement and to rotatably maintain said rolled tape within said shells, a slot formed in the peripheral wall of one of said shells, said slot serving as an opening through which an end of the rolled tape may be passed exteriorly of said shells, and a cutting edge carried upon the outer peripheral surface of one of the shells over which the tape may be drawn for severance.

VINCENT L. DE LUISI. CHARLES F. MURTAUGH.

No references cited.

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