US1981344A

US1981344A - Packing pad

Info

Publication number: US1981344A
Application number: US565473A
Authority: US
Inventors: Burrows Mabel
Original assignee: WILLIAM K JAQUITH
Current assignee: WILLIAM K JAQUITH
Priority date: 1931-09-28
Filing date: 1931-09-28
Publication date: 1934-11-20
Anticipated expiration: 1951-11-20

Description

Nov. 20, 1934. R. w. BURRows PACKING PAD Filed sept. 28, 1931 INVENTOR.

ROBERT/4f wexows W ATTORNEY Patentedl Nov. 20, 1934 UNITED STATES PACKING PAD Robert W. Burrows, Petaluma,

Calif.; Mabel Burrows, executrix of said Robert W. Burrows, deceased, assignor to William K. Jaquith,

Petaluma, Calif.

Application September 28, 1931, Serial No. 565,473

8 Claims.

This invention relates generally to a packing pad. or buffer which is adaptable to use in cushioning the inner faces of a box container for packing fruit and the like, and is related to 6 my co-pending application Serial No. 475,020,

filed August 13, 1930, for Packing pads.

Broadly speaking, the invention consists of a plurality of overlying ilaccid sheets having upformed portions and a reinforcing back sheet member which may extend arcuately beyond the edges cf the flaccid sheets. The reinforcing back sheet portion is intended to abut the inner face of a box or crate Wall, while the opposite side of the pad which may be called its face abuts the fruit or box contents and is formed of the flaccid sheets which are soft and pliable. l

In order that the advantages of this invention may be readily distinguished from the known art, it is to be understood that in referring to accid sheets as distinguished from corrugated board, what is meant is material Which when cut in small elongated pieces Will sag of its own weight, as more fully set forth in my said copending application.

These 11p-formed portions will increase the cross sectional thickness of the paper depending on the ccarseness of the portion which is upformed, and I prefer to use up-formed portions of such coarseness so that the extreme transverse planes of the sheets so formed increase the normal thickness of the paper about fourfold. The 11p-formed portions in the paper are irregularly spaced and preferably irregular in size so that when the layers of the flaccid sheet are in overlying or superposed relationship, the up-formed portions or indentations, as the case may be, do not nest and in that manner they form a pad about four times the normal thickness of the paper, the up-formed portions spacing the normal plane of the adjacent sheets and thereby forming a cushion body which is soft and flexible.

In the fruit business, it is customary to pack the fruit in boxes of Well known type, made of side pieces of relatively thin material, suchas wood panels or slats fastened to shook ends, and a top panel or slats, the boxes being' usually referred to as crates or lugs.

In commercial practice it is also customary to ll said crates or lu'gs until the fruit extends beyond the upper edge of the filling opening of the box for the double purpose of absorbing any settling of the fruit in transportation, .and so that the container presents the appearance to the customer of being full weight and liberal in quantity. When the top panel or slats are fastened on the crate prior to nailing at the ends, the panels or slats arch at the center, and since these top pieces are usually flat pieces of thin wood board, there is a downward pressure upon the fruit, both at vthe time of fastening the top and also thereafter. This pressure upon the fruit causes the upper layer of fruit along the sides of the box to be bruised or cut by the upper edge of the box side.

As set forth in my co-pending application above referred to, it is desirable that a pad for packing fruit and like delicate products should be soft and flexible, and sufliciently economical to manufacture so as not to lay an undue financial burden upon the packed product, the said co-pending application making provision for a packing pad comprised of a plurality of overlying sheets of flaccid material having up-formed portions and provided with a facing sheet of Water-proof material, said sheets being secured in overlying relationship.

It is an object of the present invention to provide a packing pad having a soft flexible portion to serve as a crate liner and amore rigid portion at the back to serve as a reinforcement of the exible portion for convenience in handling; other objects are to provide a flexible packing pad which is economical to manufacture and the handling of which is facilitated by a reinforcing sheet of material at the back more rigid than the composition of the pad. Another` object is to provide a packing pad having a portion With an arcuate edge adapted for extending above the side edges of a packing crate. A further object is to provide a packing pad of overlying sheets of flaccid material with portions upformed from the normal transverse plane of the sheets, so as to avoid nesting of the 11p-formed portions, and to provide in connection therewith a reinforcing means which also serves to guide .over-filled quantities of fruit past'the sharp upper edge of a crate side wall.

With the above mentioned and other objects in view, the invention consists in the novel construction and combination of parts hereinafter described, illustrated in the accompanying drawing and pointed out in the claims hereto appended; it being understood that various changes inthe form, proportion, size and minor details of construction Within the scope of the claims may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

To more clearly comprehend the invention, reference is directed to the accompanying drawing, wherein:-

Fig. 1 is an elevation of one face of pad, being'the back face which abuts the crate walls.

Fig. 2 isv side edge View of a fragment oi one sheet of pad forming material, enlarged in thickness. l

Fig. 3 is a perspective of packing crate, show ing manner of placement of pad.

Fig. 4 is a vertical transverse section of `pad with facing sheet and with back( reinforcing sheet having top extension., .j

5 is a vertical transversesection of pad showing an extension member. at top.

Fig. 6 is a vertical transverse section of pad having reinforcing backing sheet.

Referring to the drawing in which like charac ters of reference designate similar parts in the several figures, 10 represents a pad generally, which is composed of a plurality of overlying layers of sheet material 11, which has upformed portions 12 from Vthe normal plane 13 of theY sheet. For this purpose I prefer to use paper, which is well known commercially as crepe paper, which is manufactured with crinkles formed and haphazardly positioned therein, so that the surface thereof is provided with a large number of irregularly placed and irreguiarly sized projections or ridges 12 and indentations or valleys 14, the irregularity in size rugated board, which is relatively stiff and hard.

These overlying sheets 11 may be secured in pad forming relation by any suitable means, suchy as gluing at their edges, but my preferred means of relatively positioning said sheets is to provide a facing sheet l5 preferably of waterproof material, such as may be produced by a paraflined coating on paper, and passing said facingv sheet around the two lengthwise edges of the accid sheets and gluing same on the reverse side of the pad leaving the ends of the pad with free edges, as indicated at 16, thus elimi-.

nating any glue from possibility ofy contact lwith thev fruit. This is most clearly shown inFxg. 1,

and enables the making of the pads in long n strips to be cut in desired lengths.

It, will be realized that the pad thus far described is of a very flexible nature,` and as a practical matter it is necessary to handle thesel pads rapidly, and also to` place them in boxes l before the fruit is packed therein, and, therefore, it is desirable to have a reinforcing backing sheet member so that the pad wlll not sag 1n the box while the fruit isbeing packed, and

, also to provide a reinforcing means to prevent injury of the pads. Forthis purpose, a backing sheet. 17 of material, more rigid thanthe'flaccid sheets, may be placed along the rear side of the over-lying flexible sheets, in which event the portionof the.` facing sheet overlapping the rear side of the pad may also. include Withinits.

testati fold the edges of the reinforcing backing sheet, as best shown in Fig. 6. 1

It is preferred, however, that the reinforcing sheet 17 extend beyondone edge of the flexible pad providing a portion 13 which has its free edge formed arcuately, as at 19 in Fig. l, and as. shown in section in Figs. 4 and, 5. rIhis arcuate portion providesA a liller for the gap which exists between the upper edge 20 of the box side and the crown of the arc 2l formed by the lid panel or slats 22.

Normally, the flexible portion of the pad will extend a short distanceabove the upper edge 2Ov of the side of the box, as indicated at 23, so that when the extended portion 18 of the either from vibration in transportation or by `the pressure of the top 22, the fruit will bear against a cushion pad at the upper edge of the box side instead of upon the sharp edge of the box, or upon a hard surface which would be present were it. not for the flexible cushion pad interposed between the fruit and thev back reinforcing sheet 17.

In Fig. l isshown a modified form of pad providing for a combination side Wall pad and end pad and in which a great saving in material and:y cost is made by reinforcing the back of the ii'exible pad with the reinforcingv backing sheet adjacent the longitudinal pad ledges only, the portion A being intended for the side of the box and the portion B being intended for the end of the box. In this modified form, theupper reinforcing member 24 is not provided withan extending portion, such as 18, for the reason that the top of the box ts closely upon the. end shooks, and the portions A and B when within the box, being at an angle of substantially are substantially self supported. In this Inodined form of Fig. 1, it is optional to also provide a strip `25 parallel with and adjacent to the bottom'edge of the pad. Manifestly, the pad shown in Fig. l could be severed on rthe line markedi c-c and the severed sections used separately. However, for purposesr of economy of labor and expense in packing: fruit, it is pre ferred that the pad shown in Fig; 1 shouldbe oflsucient longitudinal length to reach along aside and across an end' of a fruit crate.

Havingthus described the invention what is claimed as" new and desired to be protected by Letters Patent isz- 1. A1 packing pad comprising a plurality of4 flaccidL sheets in overlying relationship and having portionsv 11p-formed from their normal planes providing ridges andvalleys, and a backing sheet, of material more rigid than the vflaccid sheets,l

said sheets beingrelatively held at two edges. l

2. A packingpad' comprising a plurality of overlying flaccidv sheets` havingup-formed portions providing ridges and valleys, and a facing.

sheet having at least one dimension greater` than the other sheets, and a backing sheet of material more rigid than ,the flaccid sheets, saidy ing-portions--of their respective bodies up-formed from: the. normal transverse.planeof.vv the sheets providing ridges and valleys, the adjacent sheets having ridges and valleys out of register so as to avoid nesting of the ridges and valleys of adjacent sheets, and a strip of material more rigid than the flaccid sheets positioned adjacent an edge of the flaccid sheets so as to leave an area of the flaccid sheets free of the rigid material, said rigid material having a portion extending beyond the edge of the flaccid sheets, said extended portion having an arcuately formed edge portion, said sheets being secured together.

4. A device of the character described comprising a plurality of overlying flaccid sheets in pad forming relation, said flaccid sheets having portions of their respective bodies up-iormed from the normal transverse plane of the sheets providing ridges and valleys, the adjacent sheets having ridges and valleys out of register so as to avoid nesting of the ridges and valleys of adjacent sheets, and a sheet of material more rigid than the flaccid sheets positioned parallel of the flaccid sheets and having an arcuately formed edge portion Which extends beyond a portion of the edge of the flaccid sheets and said flaccid sheets having an edge portion Which extends beyond an edge portion of said rigid sheet.

5. A device of the character described, comprising a plurality of overlying flaccid sheets in pad forming relation, said accid sheets having portions of their respective bodies up-formed from the normal transverse plane of the sheet providing ridges and valleys, the adjacent sheets having ridges and valleys out of register so as to avoid nesting on the ridges and valleys ci' adjacent sheets, and a strip of material of lesser transverse Width and more rigid than the flaccid sheets, secured to said overlying i'laccid sheets adjacent an edge thereof, and having a portion extending therebeyond, said extended portion having an arcuately formed edge portion, said flaccid sheets and said strip being secured in juxta-position.

6. A device of the character described ,com-

prising a plurality of overlying accid sheets in pad forming relation, said accid sheets having portions of their respective bodies 11p-formed from the normal transverse plane of the sheet providing ridges and valleys, the adjacent sheets having ridges and valleys out of register so as to avoid nesting oi ridges and valleys of adjacent sheets, and a strip of material of lesser transverse Width and more rigid than the accid sheets secured to said overlying flaccid sheets adjacent the edge thereof and having a portion extending beyond the edge of the flaccid sheets, and a portion lying substantially parallel to the edge portion of the flaccid sheets, said extended portion being provided with an arcuate free edge.

7. A device of the character described, cornprising a plurality of overlying flaccid sheets in pad forming relation, said flaccid sheets having portions of their respective bodies upformed from the normal transverse plane of the sheet providing ridges and valleys, the adjacent sheets having ridges and valleys out of register so as to avoid nesting of ridges and valleys of adjacent sheets and a strip o material of lesser transverse Width and more rigid than the flaccid sheets secured to said overlying accid sheets adjacent the edge thereof and having a portion extending beyond the edge of the iiaccid sheets, and a portion lying substantially parallel to the edge portion of the flaccid sheets, said extended portion being provided With an arcuate free edge, the extended portion being positioned so that an edge ci the accid sheets forms a chord no