US3386413A

US3386413A - Inking pad and method of producing the same

Info

Publication number: US3386413A
Application number: US529782A
Authority: US
Inventors: Whitney K Munson
Original assignee: Individual
Current assignee: Individual
Priority date: 1966-02-24
Filing date: 1966-02-24
Publication date: 1968-06-04
Anticipated expiration: 1985-06-04

Description

June 4, T1968 w. K. MuNsoN 3,386,413

INKING PAD AND METHOD OF PRODUCING THE SAME Filed Feb. 24, 1966 www ATTORNEY United States Patent O 3,386,413 INKING PAD AND METHOD F PRODUCING THE SAME Whitney K. Munson, 192 Comanche Drive, Oceanport, NJ. 07757 Filed Feb. 24, 1966, Ser. No. 529,782 2 Claims. (Cl. 118-269) ABSTRACT 0F THE DISCLOSURE An inking pad and method of producing the same, wherein the pad comprises a perforated plastic plate with absorbent pads on opposed surfaces thereof and, wherein, the peripheral edges of the plate provide projecting ribs with fabric facings lying over and heat sealed to the rims and fingergrips are clamped to said rims.

This invention relates to inking pads as used in stamp pads, generally known in the art and used for the inking of hand stamps of various types and kinds. More particularly, the invention deals in a simple and economical manner of constructing an inking pad While, at the same time, producing a pad which will give long and practical service use, the pad consisting primarily of a core delined by a plastic or other support plate, with felt pads on opposed surfaces of the plate and facing fabric sheets, peripheral edges of which are heat sealed to upper and lower surfaces of peripheral portions of said plate, which extend beyond peripheral edges of the pads disposed on said surfaces of the plate.

Still more particularly, the invention deals in a method of producing inking pads of the type and kind under consideration in a manner to minimize the cost of production of such pads.

The novel features of the invention will be best understood from the following description, when taken together with the accompanying drawing, in which certain embodiments of the invention are disposed and, in which, the separate parts are designated by suitable reference characters in each of the views and, in which:

FIG. 1 is a diagrammatic plan view of one form of inking pad made according to my invention, with parts of the construction broken away.

FIG. 2 is an enlarged partial section substantially on the line 2--2 of FIG. l.

FIG. 3 is a view, similar to FIG. 1, showing only a part of the construction and illustrating a modification.

FIG. 4 is a sectional detail View, generally similar to FIG. 2, illustrating the attachment of hardware to the peripheral edge of the pad; and

FIG. 5 is a diagrammatic or schematic view to more clearly visualize a method, as hereinafter described, particularly in illustrating and identifying the various successive stations inthe operation of producing the inking pads. For clear illustration and distinguishing from the core structures, the facing fabric strips are illustrated in dotdash lines.

Considering FIGS. l, 2 and 4 of the drawing, the inking pad comprises, first, what might be termed a core assembly, comprising an oblong rectangular plate 10, preferably made of substantially rigid plastic material, the body portion of which, within peripheral edges of the plate, has a multiplicity of apertures shown, in part, at 11 in FIG. 1 of the drawing. Temporarily fixed and positioned by spot adhesive or otherwise are cushioning and absoring pads 12 arranged upon opposed surfaces of the plate 10, peripheral edges of the pads 12 terminating inwardly of edge portions of the plate to form what might be termed border rims 13. When the pads 12 are fixed and positioned 3,386,413 Patented June 4, 1968 "lee on the plate 10 at a core assembly and delivery station, diagrammatically represented at the left of FIG. 5, assembled cores 14 will be formed.

In thek method diagrammatically or schematically illustrated in FIG. 5, the cores 14 will be suitably fed in the direciton of the arrow 15 into and through a fabric applying station, diagrammatically noted in FIG. 5, wherein two fabric sheets or strips from supply rolls 16 are disposed on upper and lower surfaces of the cores 14 and fed with these cores in the direction of the arrow 17 for delivery to a heat seal station, noted in FIG. 5. The fabric strips 16 are of a width substantially equal to the width of the resulting pad to be formed. To simplify the illustration and more clearly visualize the fabric facing strips, they have been illustrated by dot-dash lines at 16. Initial feed of these strips are into the heat seal station when the heat sealing dies or tools, diagrammatically represented by the brackets 18, are in open position; whereupon, the tools or dies 18 are moved into closed position, heat sealing the facing 16 on the border rims 13 of the core 14 then at the station. Then, when the tools or dies 18 are moved into the open position on completing the heat seal, the next successive core is fed into the station and the heat sealed ink pad product is then delivered to a position, as seen at 19, onto suitable means for feeding 19 in the direction of the arrow 20 to a hardware attachment station or any other finishing station, wherein the completed end product, such as shown in FIGS. 1 and 2, will result or the product as illustrated, in part, in FIG. 4, later described.

Returning now to the method of procedure after the heat sealing operation has been performed and while the tools or dies 18 are still in operative position, a pair of trimming tools 21 at a trimming station are moved into operative position to shear the fabric facings 16 in order to free and produce the heat sealed product, as seen at 19.

Considering now FIG. 2 of the drawing, at 22 I have shown the heat sealed edge portions of the facing sheets 16 as they are heat sealed to the protruding rims 13 around the entire periphery of the pads 12. In this operation, edge portions of the pads will be slightly compressed, as dia grammatically seen at 23 in FIG. 2. This definitely maintains the pads in fixed position on the plate 10. At this time, it is pointed out that, in the use of the inking pads, the apertures 11 facilitate transfer of ink from one pad to another, the lower pad picking up ink from ink wells or reservoirs, for example, as more clearly shown in my prior Letters Patent Number 2,709,415.

Considering the patent above noted, it will appear that, at times, hardware of Vari-ous types and kinds is attached to side edge portions of inking pads for support and positioning of the pads in a stamp pad and, sometimes, in forming the pivotal supports for the pad to facilitate reinking, as well as detachment and reversing of the inking pad in the stamp pad, as known in the art. In illustrating one adaptation of hardware, I have shown at 24 a hardware piece having compressed gripper fingers 25 which may be in one or two pairs, one pair only being shown, which is fashioned onto the border rim adjacent corner portions of the inking pad, in the manner diagrammatically illustrated in FIG. 4 and, in dot-dash lines, I have illustrated at 26 a plate portion of the hardware. However, as previously stated, the portion 26 may comprise a protruding pivot.

In connection with the pivot noted above, I have shown in FIG. 3 of the drawing a modification of the structure shown, wherein a plate 10 is employed, in all respects similar to the plate 10 of FIG. 1, with the exception that alined corner portions will have integrally projecting pivot pins 27 fashioned from the material of the plate and the other alined corner portions will have some type or kind of hardware assisting in holding the inking pad in connection with the stamp pad or wall portions thereof or in providing any other function desirable for the practical end use of the inking pad.

With cores of structures of the type and kind illustrated, in part, in EEG. 3, definite means will be provided for the feed and delivery of the cores and assemblage to the several stations, diagrammatically shown in FIG. 5 of the drawing, it being understood that the fabric facings will be trimmed in the same marmer as diagrammatically illustrated, with the possible exception that the trimming tools 21 may include a shearing movement over the surface of the assemblage, as well as toward and from the assemblage to obviate shearing or weakening of the pivot pins 27.

With a method, such as diagrammatically or schematically shown in FIG. 5, the production of inking pads of the type and kind under consideration can be conducted at relatively high speed and with an outstanding saving in the cost of producing inking pads of the kind under consideration. Further, the end products produced according to this method will be stronger and provide a greater service use than with pads as produced according to known methods. It will yalso be apparent that, by employing the platelike structure of the core, a substantially rm, as well as strong inking pad will be produced.

Having fully described my invention, what I claim as new and desirer to secure by Letters Patent is:

1. An inking pad for stamp pads, said inking pad comprising a core consisting of a perforated plastic plate having absorbent pads on opposed surfaces of said plate, peripheral edges of the pads terminating short of the peripheral edges of said plate to form on the plate projecting rims, fabric acings covering opposed surfaces of the cores, said fabric facings lying over and being heat sealed to upper and lower surfaces of said rims in forming the resulting inking pad, predetermined hardware being clamped in engagement with rims of the inking pad for mounting of the inking pad in connection with a stamp pad, and said hardware including gripper fingers firmly engaging the rim portions of the inking pad.

2. The method of producing inking pads of the character dened which consists in first assembling absorbent pads on opposed surfaces of a perforated plastic plate, with peripheral edges of the pads terminating inwardly of the peripheral edges of the plate to form projecting rims on the plate and in producing a core assembly, delivering the core assemblies intermittently to a fabric applying station, then applying fabric facings on upper and lower surfaces of the core assemblies at said fabric applying station, then intermittently feeding the core assemblies one at a time to a combined heat sealing station and trimming station, heat sealing the fabric facings to the rims of each core assembly at said stations and simultaneously trimming the fabric facings in forming inking pads, and then delivering said inking pads to a hardware attachment station in producing the resulting ink pad products.

References Cited UNITED STATES PATENTS 1,340,882 5/1920 Freeman 156-251 XR 2,521,984 9/1950 Lang 156-220 XR 2,674,977 4/ 1954 Munson 118-269 XR 3,280,517 10/1966 Copeland 158-209 XR FOREIGN PATENTS 454,079 9/1936 Great Britain.

DANIEL BLUM, Primary Examiner.