US1938909A - Paper pulp plate - Google Patents

Description

I n 12', 1933. E, HUF,.-

PAPER PULP PLATE Filed 9ct. 24. 1931 ToR b @fall/4L, w/L im@ ATTORNEYS INVEN rafeniea Dec. 12,1933 1,938,909

UNITED STATES PATENT OFFICE PAPER PULP PLATE Ernest Huff, Milwaukee, Wis., assigner to American Lace Paper Company, Milwaukee, Wis., a corporation of Wisconsin Application october 24, 1931. serial No. 570,781 4 claims. (c1. zzo-2.5)

This invention relates to improvements in paper whereas the fibers on all of the side, bottom and pulp plates. top faces of the component elements of the plate It is the primary object of the invention to have been pressed and attened, the trimming provide a novel and improved plate specially of the lower edge of flange 5 leaves the ends of I designed for manufacture from paper pulp and the fibers exposed for engagement with the sup- 60 adapted to overcome objections previously made porting surface. against paper pulp plates. Thus, not only due to the very small area of More specifically, it is my purpose to provide the lower edge of fiange 5; but also due to the a paper pulp plate which is adapted to maintain ends of the fibers exposed along said edge, there its form and position when in use. Ordinarily is a high resistance offered to any lateral move- 65 plates made of paper pulp bend under the slightment of the plate upon its supporting surface, and est load and slide so easily upon a table or like as a result the plate may be used with just as supporting surface as to make it diiiicult to use much ease and comfort as any china dish affords. a knife and fork to cut food upon the plate. Distortion is also avoided in the design shown It is a further object of the invention to produe to the support for' the margins of the plate, 70 vide a novel and improved plate design which which is provided by flange 5. The construction is is so developed as to facilitate handling and use such that under any reasonable circumstances the of the plate notwithstanding the presence of a plate will retain its form and hold its contents semarginal flange for engaging and supporting the curely. Since the bottom 3 is out of contact with plate from a table or the like. the supporting surface, and since the edge of 75 In lthe drawing: flange 5 is trimmed to a given plane, any slight ir- Figure 1 is a view in perspective of a, paper regularities which may occur in manufacture will pulp plate exemplifying this invention, be rendered ineffective to disturb the equilibrium Figure 2 is an enlarged detail illustrating the 0f the plate upon Completion 0f the trimming transverse cross section of the plate. operation. 80

Like parts are identified by the same reference The aleuate shape 0f the Openings 7 distributes characters throughout the several views, effectively all strains on the rim of the plate while The plate is Acast to provide integrally a bottom permitting the fingers to rest naturally beneath 3, an annular rim 4, and a marginal flange 5, the plate 1i111 in handling the platewhich is connected at its top with the rim and I Clelm 85 preferably is formed to extend substantially per- 1- As a neW article 0f manufacture, a plate 0f pendicular with reference to the supporting surpulp having a bottom, a rim, and an annulal mal'- faee represented by line 6 in Figure 2 In order ginal flange with pressure hardened surfaces, the that the plate may be grasped readily, portions l0We1' edge 0f said ange having the ends 0f its of the flange 5 are out away on arcuate lines, pulp fibers exposed et a level Such as t0 engage 9o leaving fmger Openings as shown at 7, a table surface for the support of the plate against Following the casting operation by which the lateral dlsplacemfmtplate is formed it is preferably subjected to high 2- A Plate llaYlng al bottom, an upwardly 1n' pressure which leaves its surfaces hard and @lined annulal: Ilm; and an amllllar llange Sub' 4o smooth. Ifthe bottom portion s of the plate oon- Stantially vertical 1n Cross Seetlen, Said betteln. 95 stituted the sole means for engagement With l'lm and flange being lntegl'ally formed 0f Pulp the Supporting surface 5 the plate would be and said flange being extended slightly below the subject to the usual difllcultles in the Way of plane of said bottom and being provided with a distortion and slippage. preferably however, plurality of openings through which the fingers of the plate is so designed that its bottom portion an Operator may be passed t0 engage Said rim 3 is slightly out of contact with the supporting a11d With a trimmed edge eXpOsing Cut fibel' ends surface but is sufficiently close thereto so that whereby t0 resist displacement 0f the plate 0n a under pressure of food or of a knife and fork Supporting Surface. during a food-cutting operation, the bottom may 3. A plate having a betteln, an upwardly in` receive support from the table. clined annular rim, and an annular flange sub- 105 Following the completion of the pressure operstantially vertical in cross section integrally ation upon the plate it is necessary to trim the formed of pulp, said flange being extended slightlower marginal edge of flange 5. At this time ly below the plane of said bottom and being proalso the openings 7 may be cut therein if devided with a plurality 0f Openings through Which '55 sired. It is important to note, however that the fingers of an operator may be passed to en- 110 gage said rim, the surfaces of said bottom and rim comprising pressure hardened pulp fiber and the lower edge of said flange exposing the severed ends of fibers for engagement; with a supporting 5 surface.

4. A pulp receptacle having pressure hardened exposed surfaces and a trimmed supporting ange ERNEST HUFF.

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