Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Presses or press platen structures – per se
Patent
1991-01-10
1992-12-01
Wityshyn, Michael G.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Presses or press platen structures, per se
100 93P, 100219, 100233, 100266, 100283, 219243, B30B 1504, B30B 1534
Patent
active
051677504
DESCRIPTION:
BRIEF SUMMARY
RELATED APPLICATIONS
This application incorporates by reference the disclosure of PCT applications Ser. No. PCT/US88/00409 filed Jan. 22, 1988 for HEAT SEALING APPARATUS and PCT/US88/04021 filed Nov. 9, 1988 for CAP SEALING MACHINE.
BACKGROUND OF THE INVENTION
With the increasing interest in heat-applied lettering, numerals, and other indicia on fabrics of all kinds, it has become desirable to provide an efficient and compact heat sealing machine which may be used by a shopkeeper or the like in the normal course of business as an adjunct to garment sales. To enable such a machine to be used readily by essentially unskilled workers, it is desirable that the machine be simple and foolproof in its operation so that a garment salesperson may, while a customer waits, imprint the garment with the selected letter, numeral or other indicia.
Heat sealing machines of various types have appeared on the market for several years, but for the most part have been difficult to operate successfully particularly by unskilled workers and such machines have not been well-suited to the wide variety of fabrics and the indicia which may be applied thereto now in vogue. Accordingly, there has been a need for the provision of a machine which may be readily operated with a minimum of instruction to imprint fabrics while a customer waits, such being carried out, for example, by the salesperson as a part of the garment sale. Desirably, the machine should be of compact form, occupy minimal counter space and be capable of programming by the operator in accordance with the requirements for the particular garment or indicia to be applied thereto. The guesswork in applying the indicia to the garment generally involved in the prior art machines should be, to as great an extent as possible, eliminated from a machine of the character under consideration.
The following U.S. Patents show heat sealing machines representative of relevant prior art, but none of these is satisfactory for the particular purpose intended:
SUMMARY OF THE INVENTION
The improved heat sealing machine disclosed herein includes a base on which is mounted a horizontal lower platen on which the garment and the indicia to be imprinted thereon are arranged. An upper platen is mounted on the base for swingable movement from a substantially vertical position at the rear of the lower platen to a position superimposing the lower platen The upper platen is heated. A handle is mounted at the front of the upper platen by which the operator may raise and lower the platen. The handle is connected to an over-center linkage mechanism for locking the upper platen firmly against the lower platen to apply pressure to the garment and the indicia disposed between the platens. The over-center linkage arrangement is such that during the last increments of closing movement of the upper platen against the lower platen the pressure between the platens is multiplied. Arranged atop the upper platen is a control center at which the operator may input operating data such as the temperature of the upper platen, the time the platens are to remain closed to effect the heat sealing and the control center will provide a visual readout to the operator of the temperature of the upper platen, the time remaining for the heat sealing closure of the platens and the pressure between the platens. An input device arranged atop the upper platen permits the operator to adjust the pressure between the platens to the desired amount. In operation, the machine signals the operator when the machine has reached the selected temperature and upon closure of the platens the closure time is automatically measured and an audible and visual signal is provided when the time has expired. In addition the operator may visually note the pressure between the platens as well as the temperature.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view from the front, right hand corner of a heat sealing machine embodying the invention with the cover for the linkage and the control center removed, and its outline shown in
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Stahl's Special Projects, Inc.
Wityshyn Michael G.
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