US 2736452 A
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Feb. 28, 1956 w, RQQP RECEPTACLE FOR BAKERY PRODUCTS 2 Sheets-Sheet 1 Filed Oct. 21, 1952 YIIIIIIIIII/I l INVENTOR NAT/ffl/V VV ROOF ATTORNEY Feb. 28, 1956 w, ROOF 2,736,452
RECEPTACLE FOR BAKERY PRODUCTS 2 Sheets-Sheet 2 Filed Oct. 21, 1952 INVENTOR F/. 4 /v,47'// 4/v W. ROOF BY %%reaa ATTORNEY United States Patent RECEPTACLE FOR BAKERY PRODUCTS Nathan W. Roop, Columbus, Ohio, assignor to Columbus Plastic Products, Inc., Columbus, Ohio, a corporation of Ohio Application October 21, 1952, Serial No. 315,905
1 Claim. (Cl. 220-4) This invention relates to the broad class of receptacles, and, more specifically, to receptacles of the kin-d in which the walls thereof are formed from press-molded plastics of synthetic resin composition.
In accordance with the present invention, there is provided a box or receptacle composed entirely of molded parts, and, wherein is included a base or bottom section having a flat bottom wall, integral upstanding front, side and rear walls and an open top. Mounted on and permanently secured to the upper edges of the upstanding walls of the base section is a hood-like upper section, the latter being formed with an arcuate front and top wall and vertically depending side and rear walls in registry with complemental front, side and rear walls of the base section. The combined front and back wall of the top section is formed with an opening providing access to the interior of the box or receptacle and which isopened or closed by a swinging cover member of segmental configuration arranged within the receptacle for turning movement about a horizontal axis in the actuation thereof for opening and closing said access opening. The upstanding side walls of the base section are formed with integral, inwardly projecting, hollow trunnions adapted to be received within horizontally and longitudinally aligned bearing openings formed in the lower rear corner portions of the associated cover member, the trunnions being formed and arranged to furnish pivotal support for the cover member. The receptacle is further formed so that a close, joint-closing union exists at all times between the adjoining surfaces of the base and top sections and the hingedly movable cover member. Also, the meeting edges of the base and top sections of the box or receptacle are formed with interfitting tongue and groove formations which, through the use of an adhesive, solvent or the like applied to the interfaces thereof are inseparably joined in permanently united order.
Among others, the invention has for its general objects to provide a receptacle having the above-defined structural features and wherein all parts of the same are of machine molded plastic composition; to provide such a box or receptacle adapted for the protected retention of baked products, such as bread, cakes, biscuits, rolls, muflins and the like; to provide a receptacle of the kind and for the purpose set forth which possesses a mechanically simple, durable and externally attractive construction and one which may be manufactured at a relatively low cost and which, in use, may be kept readily in a clean and sanitary condition.
For a further understanding of the invention, reference is to be had to the following description and the accompanyin g drawings, wherein:
Fig. l is a perspective view of a molded receptacle formed in accordance with the present invention;
Fig. 2 is a vertical transverse sectional view taken through the receptacle on the line 22 of Fig. 1;
Fig. 3 is a top plan view thereof;
Fig. 4 is a detail vertical sectional view on the line 44 of Fig. 3;
2,736,452 Patented Feb. 28, 1956 sisting essentially of a base or bottom section 1, an upper or top hood section 2 and a swinging cover section or member 3.
The base or bottom section comprises an integral or one-piece plastic molding, having a horizontal bottom wall 4, vertically upstanding front, side and back walls 5, 6 and 7, respectively. The bottom wall 4 may have molded therewith depending base pads or ribs 8, whereby to minimize the area of surface contact between the lower surface of the bottom wall 4 and a supporting base or table upon which the box or receptacle may be placed when in use. Also, the upper marginal edges of the walls 5, 6 and 7 are molded to form laterally widened marginal ribs 9, each of which having formed therein a groove 10, the latter receiving in close-fitting order a depending tongue 11 integrally formed with each lower edge of the walls defining the upper or top section 2 of the receptacle.
The said upper or top section ,2, also, comprises an integral, one-piece plastic molding, the same embodying a composite, arcuate, front and top wall 12, vertical side or end walls 13 and a back wall 14. The tongue forma tion 11 extends marginally around the lower edges of the walls 12, 13 and 14, and provides for a fixed and virtually inseparable union between the base and top sections 1 and 2, respectively, such union is obtained by the tightfitting engagement existing in the interfaces formed between the tongue and groove formations and by the addition to the interfaces of a solvent or an adhesive, so that in use the sections 1 and 2 constitute in effect a single part.
The curved top wall 12 of the section 2 is formed with an access opening 15, which is normally closed by means of the swinging cover section or member 3. The cover section also constitutes an integral, one-piece, plastic molding, having an'arcuate front wall 16 conforming in curvature to that of the wall 12. At its lower front edge the wall 16 terminates in a longitudinally extending and outwardly directed finger-engaging ledge 17 which, when the cover member is closed, rests on the upper surface of the front wall 5 of the bottom section 1.
The upper or inner portion of the wall 16 of the cover member terminates in a longitudinally extending upwardly offset lip 18, the latter being formed for sealing engagement with the outer longitudinal edge of an inwardly and downwardly curved flange 19 integral with the upper body section and constituting the upper edge of the access opening 15. The lower edge of the flange 19 engages the upper surface of the lip 18, as shown in Fig. 2, in a manner closing or sealing the top edges of the access opening in a manner excluding insects and foreign matter from the interior of the receptacle. Similarly, the sides of the access opening are formed with flanges 19a, constituting continuations of the flange 19 as shown in Fig. 4, and which engage the sides of the cover member walls 16 in a manner closing the joints formed therebetween.
At its sides the cover member or section 3 provides inwardly and vertically disposed end webs or walls 20. As shown more particularly in Figs. 2 and 5, the lower rear corners of the walls 20 are formed with depending ears 21, having apertures 22 therein forming bearing openings for the reception of horizontal trunnions 23, which project horizontally and inwardly from the central upper portions of the end walls 6 of the base section. The arrangement of the trunnions 23 is such that the same serve to pivotally support the cover member or sections 3 for di'cated by broken lines in Fig,v ,2. Opening-movement of the cover member is arrested by engagement of-the lip 13:
with -.lateral shoulders 24forrned withsandprojectinginwardlyfrom the back wall .7 of thebase section: Closing movement of the cover'member-is limited by the engagement of the-ledge 17 with the upper edge of the front wall v of the base section. For interior ventilation, the wall .-12 may be provided at the rear: thereof with amultiplicity of fine perforations 25.
As shown particularly in Fig, 5, the trunnion 23 is formed with an inwardly opening socket'which. receives therein the shankof'a-headed retaining stud123a. Preferably, theshank of the stud 23a is'cemented or fusedwithin: the socketof the trunnion 23-after assembly of'the ears 21 upon the outer surface of the trunnion, in order' toretain the ears 21 on the trunnion.
Byreasonof the vertically offset'relationbetween the lip 18.and the remaining body portionof the cover section '3, a relatively tight fit between. the. upper section of the box and the cover section is obtained when the cover section occupies'its closed position but at the same time, the outer surface of the main body portion of the cover section is prevented from rubbing or abrading against the edge/19 during opening and closing movement of'the cover section, thus eliminating scratching or marring' of the main outer surface of the cover.
It' will thus be seen that the present invention provides a substantial, readily operated and externally attractive receptacle which, while adapted for various purposes, is
particularly useful in the keeping and storing of baked foods. The fact that the box or receptacle=iscomposed completely of molded wallsiof plastic composition, and possess smooth curved edges, enables the same to be readily maintained in a cleanly and-sanitary condition. Further, the'walls Will not rust, corrode or otherwise deteriorate, as so often happens when such receptacles include metallic walls in'their construction. By being formed from machine-produced moldings, the box'readily-lends itself to economical manufacture with accompanying low maintenance and purchase costs.
While I have described what I-consider to be a preferred embodiment of my improved receptacle, nevertheless, I reserve the right to employ such variations or modifications thereof that may be said to fall fairly withinthe scope of the following claim.
A plastic bread box comprising anintegral base section including a bottom wall and upstanding front, side and back walls; an integral'upper hood'section including a generally arcuate front wall, a generally flat top wall merging into and forming a continuation of said arcuate front wall and generally vertically arranged back and side walls, the back and side walls of said hood section being secured to the back and sidewalls of said base section, and said-base and hood sections-'defininga compartment for the reception of bread loaves, the front wall of said hood section being formed'with a slotted region defining.
an access'opening extending substantially from the upper edge of the front wall of said base section to the top wall of'said hood section and the top wallof said hood section adjacent said access opening being formed with a downturned marginal flange extending transversely of said access opening; a pair of opposed longitudinally aligned trunnions formed integral with the opposite side walls of said. base. section and projecting inwardly thereof above thebottorn wall of said base section; and a swinging cover member positioned within said hood section and formed with a generally arcuate outer wall terminating on each side, thereof in depending perpendicularly related webs, the. webs of said cover member being formed with bearing openings encircling said trunnionsand said trunnions supporting said cover. member for swinging movement between positions opening. and closing said access opening, the outer wall of 'said cover member being formed along the rearward edge thereof with an integral radially and. outwardly offset lip adapted to slidably engage the downturned flange of the top wall of said hood section upon closure of said cover member, and thereby to provide a substantially tight fit between said lip and said flange when said cover member is closed, the body portion .of the outer Wall of said cover member being spaced radially inwardly relative to the flange of said hood sec-, tionto prevent abrading of the outer surface thereof against said. flange during swinging movement of said cover, member.
References Cited in the file of this patent UNITED STATES PATENTS 180,605 Lee Aug. 1, 1876 968,828 Beckley- Aug; 30, 1910 1,138,939 Deardorif May 11, 1915 1,680,962 Voshardt Aug. 14, 1928- 1,800,519- Fredberg Apr. 14, 1931 2,203,960 Hickman June 11, 1940 2,512,105 Kooij et al; June 20, 1950 2,517,420 Gauvreau Aug. 1, 195.0 2,661,114 Barnett et a1. Dec. 1, 1953'