US3264396A - Method of injection molding a tote case - Google Patents
Method of injection molding a tote case Download PDFInfo
- Publication number
- US3264396A US3264396A US335739A US33573964A US3264396A US 3264396 A US3264396 A US 3264396A US 335739 A US335739 A US 335739A US 33573964 A US33573964 A US 33573964A US 3264396 A US3264396 A US 3264396A
- Authority
- US
- United States
- Prior art keywords
- tote
- case
- cases
- injection molding
- tote case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 11
- 238000001746 injection moulding Methods 0.000 title description 2
- 239000012815 thermoplastic material Substances 0.000 claims description 3
- 239000002991 molded plastic Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 11
- 239000004033 plastic Substances 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 8
- 238000010276 construction Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 241000269319 Squalius cephalus Species 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 229920005669 high impact polystyrene Polymers 0.000 description 1
- 239000004797 high-impact polystyrene Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
- B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
- B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0046—Details relating to the filling pattern or flow paths or flow characteristics of moulding material in the mould cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
- B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
- B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
- B65D21/0213—Containers presenting a continuous stacking profile along the upper or lower edge of at least two opposite side walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7134—Crates, e.g. for bottles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S220/00—Receptacles
- Y10S220/15—Plastic bottle crates
Definitions
- This invention relates generally to tote cases and, more particularly, relates to tote cases particularly suited for handling products such as paperboard and plastic liquid containing packages, and to the method of making such cases.
- Prior plastic tote cases fail to provide satisfactory stacking of a plurality of such cases as well as fail to provide a case bottom structure having adequate drainage facilities and yet being of sufiicient strength to endure harsh treatment.
- Yet another object of the present invention is to provide a bottom structure for a tote case which is of such a configuration that when it is formed, uniform controlled material distribution in parts can be had even though it be of a generally square or other rectangular configuration.
- the present invention thus resides in an improved plastic tote case having all the advantages of the prior cases plus improved stacking characteristics due to an offset shoulder and outwardly extending protuberances. Recessed internal corners are provided in the case which substantially prevent corner fitting of rectangularly shaped cartons. Also comprehended is an improved bottom construction which provides adequate drainage while retaining substantial strength. Co-extensive with the above is a method for forming the bottom construction which method provides for a uniform control of material distribution in the molding thereof.
- FIGURE 1 is a side view of a tote case constructed according to the principles of the subject invention, all sides being substantially alike;
- FIGURE 2 is a top plan view thereof
- FIGURE 3 is a bottom view thereof
- FIGURE 4 is an enlarged fragmentary section of two tote cases stacked together, the bottom of an upper tote case stacked upon the top of a lower tote case;
- FIGURE 5 is a bottom plan view of a modified form of tote case having an elongated rather than a square bottom configuration.
- Tote case or container is illustrated in FIGURES 1-4 as having a substantially square bottom 11 with side walls 12 extending upwardly therefrom. It is best molded from a lightweight plastic material such as high impact polystyrene or rigid polyethylene, or of other plastic materials having like characteristics.
- the four side walls 12 of container 10 preferably have a corrugated crosssection formed by undulations 14 to provide increased stacking rigidity, improved control of warpage, minimal moisture condensation, and faster cool-down of the container and contents.
- undulations 14 have been found especially useful in thin walled plastic cases. Corners 15, formed by adjacent side walls 12, are recessed so as to prevent a tight mated fit with corners of cartons, or the like, contained within tote case 10.
- each side wall 12 has hand opening 16 with a lip or raised flange 18 around the periphery thereof to provide a reinforced grip.
- a thickened portion 20 which concludes in downwardly extending corner portions 22, the latter containing holes 24 which can be engaged by hooks or the like when the cases are pulled manually or are moved by heavy equipment.
- each side wall 12 merges into bottom 28 by way of a recessed shoulder portion 26 which gives a generally flat vertical surface 30 with bumps or rounded tapered protuberances 32 located in spaced relationship therealong, as best seen in FIGS. 1 and 4.
- Protuberances 32 act as spacers juxtapositionable with the inner surface 34 about the top of a stacked tote case of a similar configuration.
- protuberances 32 extend from the surface 30 a distance so as to snugly engage inner surface 34 to give added rigidity to the stacked cases. It can readily be seen that shoulder 26 rests upon the upper peripheral edge 36 of the case therebelow.
- FIGURE 3 especially shows that the bottom 18 of tote case 10 is formed about a plurality of cut-outs 38 which provide the improved drainage capabilities of the case, both when it holds containers and when it is in a plant, such as a dairy, being cleaned.
- the cut-outs 38 are defined by crossed planar portion 40 which is in turn reinforced by downwardly extending ridges 42 along approximately all of its surftce.
- the T-shaped cross section construction formed by planar portion 40 and downwardly extending rib 42 give improved rigidity.
- Cut-outs 38 are generally in the form of parallelograms except about the periphery of the bottom where they are in the form of triangles approximately one-half the size of the parallelograms.
- the crosses formed by planar portion 4t) comprise at least linear diagonals extending generally across said bottom wall between opposite corners thereof.
- plastic material is injected into a mold in equal directions from the center of the bottom through a gate (not shown).
- the location of the gate is defined in FIG- URE 3 by central aperture 44 which is surrounded by thickened peripheral flange 46.
- plastic flows from the center portion, under pressure, in a flow pattern substantially as defined by surfaces 40' and ribs 42, which pattern makes the distance from the orifice of the gate to peripheral points around the sides, such as 48, 50, 52, etc., the same.
- the distance through which the material must flow i.e. from the gate to the corners or the side walls, is the same in every instance.
- Such uniform controlled material distribution in molded cases having square or rectangular bases eliminates the prior problems caused by warping, poor weld lines, packing stress, and all the other inherent characteristics in prior art designs.
- FIGURE 5 That an elongated rectangular base for a'tote case can likewise have uniform material distribution when molded through a central gate is illustrated by FIGURE 5.
- the flow distance from central aperture 54 of case 56 to the corners, such as corner 58, is the same as the flow distance to any point on the sides, such as to points 6%) or 62, the distance being defined by ribs 64.
- Ribs 64 in this instance define cut-outs 66 in the shape of parallelograms about the center and triangles about the periphery of the bottom.
- thermoplastic material from the center of said bottom along a plurality of flow lines which cross one another and are of the same length to the periphery of said bottom, whereby uniform controlled material distribution is maintainedv 2;
- flow lines are step of injecting thermoplastic material from at leasta point in a plurality of intersecting flow lines which is substantially equidistant from the furthermost extents said material must travel through said flow lines, said flow lines arranged to define a plurality of like parallelograms in rows.
Description
1956 R. 1.. BEESLEY ETAL 3,264,396
METHOD OF INJECTION MOLDING A TOTE CASE 2 Sheets-Sheet 1 Filed Jan. 6, 1964 m mfi T r mafi ve JM mB um Wyn m 3k.
United States Patent METHOD OF INJECTIbN MOLDING A TOTE (ZASE Robert L. Beesley, Saginaw, John W. Mighton, Midland,
and Rudolph H. Matthias, Saginaw, Mich, assiguors to The Dow Chemical Company, Midland, Mich, a
corporation of Delaware Filed Jan. 6, 1964, Ser. No. 335,739
4 Claims. (Cl. 264328) This invention relates generally to tote cases and, more particularly, relates to tote cases particularly suited for handling products such as paperboard and plastic liquid containing packages, and to the method of making such cases.
Prior plastic tote cases fail to provide satisfactory stacking of a plurality of such cases as well as fail to provide a case bottom structure having adequate drainage facilities and yet being of sufiicient strength to endure harsh treatment.
Yet another object of the present invention is to provide a bottom structure for a tote case which is of such a configuration that when it is formed, uniform controlled material distribution in parts can be had even though it be of a generally square or other rectangular configuration.
Briefly then, the present invention thus resides in an improved plastic tote case having all the advantages of the prior cases plus improved stacking characteristics due to an offset shoulder and outwardly extending protuberances. Recessed internal corners are provided in the case which substantially prevent corner fitting of rectangularly shaped cartons. Also comprehended is an improved bottom construction which provides adequate drainage while retaining substantial strength. Co-extensive with the above is a method for forming the bottom construction which method provides for a uniform control of material distribution in the molding thereof.
Yet additional objects and advantages of the present invention, and its numerous cognate benefits and features are even more apparent and manifest in and by the ensuing description and specification taken in conjunction with the accompanying drawing in which, wheresoever possible, like characters of reference designate corresponding material and parts throughout the several views thereof, in which:
FIGURE 1 is a side view of a tote case constructed according to the principles of the subject invention, all sides being substantially alike;
FIGURE 2 is a top plan view thereof;
FIGURE 3 is a bottom view thereof;
FIGURE 4 is an enlarged fragmentary section of two tote cases stacked together, the bottom of an upper tote case stacked upon the top of a lower tote case; and
FIGURE 5 is a bottom plan view of a modified form of tote case having an elongated rather than a square bottom configuration.
Tote case or container is illustrated in FIGURES 1-4 as having a substantially square bottom 11 with side walls 12 extending upwardly therefrom. It is best molded from a lightweight plastic material such as high impact polystyrene or rigid polyethylene, or of other plastic materials having like characteristics. The four side walls 12 of container 10 preferably have a corrugated crosssection formed by undulations 14 to provide increased stacking rigidity, improved control of warpage, minimal moisture condensation, and faster cool-down of the container and contents. Such undulations 14 have been found especially useful in thin walled plastic cases. Corners 15, formed by adjacent side walls 12, are recessed so as to prevent a tight mated fit with corners of cartons, or the like, contained within tote case 10.
3,264,396 Patented August 2, 1966 "ice It is noted that each side wall 12 has hand opening 16 with a lip or raised flange 18 around the periphery thereof to provide a reinforced grip. Formed around the upper periphery of each side wall is a thickened portion 20 which concludes in downwardly extending corner portions 22, the latter containing holes 24 which can be engaged by hooks or the like when the cases are pulled manually or are moved by heavy equipment.
The lower end of each side wall 12 merges into bottom 28 by way of a recessed shoulder portion 26 which gives a generally flat vertical surface 30 with bumps or rounded tapered protuberances 32 located in spaced relationship therealong, as best seen in FIGS. 1 and 4. Protuberances 32 act as spacers juxtapositionable with the inner surface 34 about the top of a stacked tote case of a similar configuration. Preferably, protuberances 32 extend from the surface 30 a distance so as to snugly engage inner surface 34 to give added rigidity to the stacked cases. It can readily be seen that shoulder 26 rests upon the upper peripheral edge 36 of the case therebelow.
FIGURE 3 especially shows that the bottom 18 of tote case 10 is formed about a plurality of cut-outs 38 which provide the improved drainage capabilities of the case, both when it holds containers and when it is in a plant, such as a dairy, being cleaned. The cut-outs 38 are defined by crossed planar portion 40 which is in turn reinforced by downwardly extending ridges 42 along approximately all of its surftce. The T-shaped cross section construction formed by planar portion 40 and downwardly extending rib 42 give improved rigidity. Cut-outs 38 are generally in the form of parallelograms except about the periphery of the bottom where they are in the form of triangles approximately one-half the size of the parallelograms. The crosses formed by planar portion 4t) comprise at least linear diagonals extending generally across said bottom wall between opposite corners thereof.
In forming such a container and its bottom configuration, plastic material is injected into a mold in equal directions from the center of the bottom through a gate (not shown). The location of the gate is defined in FIG- URE 3 by central aperture 44 which is surrounded by thickened peripheral flange 46. When a case is injection molded, plastic flows from the center portion, under pressure, in a flow pattern substantially as defined by surfaces 40' and ribs 42, which pattern makes the distance from the orifice of the gate to peripheral points around the sides, such as 48, 50, 52, etc., the same. Thus, the distance through which the material must flow, i.e. from the gate to the corners or the side walls, is the same in every instance. Such uniform controlled material distribution in molded cases having square or rectangular bases eliminates the prior problems caused by warping, poor weld lines, packing stress, and all the other inherent characteristics in prior art designs.
That an elongated rectangular base for a'tote case can likewise have uniform material distribution when molded through a central gate is illustrated by FIGURE 5. For example, here the flow distance from central aperture 54 of case 56 to the corners, such as corner 58, is the same as the flow distance to any point on the sides, such as to points 6%) or 62, the distance being defined by ribs 64. Ribs 64 in this instance define cut-outs 66 in the shape of parallelograms about the center and triangles about the periphery of the bottom.
While certain representaive embodiments and details have been shown for the purpose of illustrating the invention, it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention.
Accordingly, What is claimed as new is:
1.- The method of forming a molded plastic tote case 7 having a rectangular bottom, said method comprising the step of injecting thermoplastic material from the center of said bottom along a plurality of flow lines which cross one another and are of the same length to the periphery of said bottom, whereby uniform controlled material distribution is maintainedv 2; The method of claim 1 wherein said flow lines are step of injecting thermoplastic material from at leasta point in a plurality of intersecting flow lines which is substantially equidistant from the furthermost extents said material must travel through said flow lines, said flow lines arranged to define a plurality of like parallelograms in rows.
having a rectangular bottom, said method comprising the References: Cited by. the Examiner.
UNITED STATES PATENTS 3/1940 Tegarty 1830 9/1947 Stacey 1842 1 12/1956 Knieriem 220-97 8/1958 Pollard 264-328 10/1961 Lovell; -2 23097 10/1961 Gustafson 220 10/1963' de Chelbor 220-21 4/ 1964 W0rmer 220-21 5/1964 Peters 264--328 12/1964 Herter 264-328 1/1965 Box- ,22021 FOREIGN PATENTS 8/1960 France.
3/1962 France.
1/ 1957 7 Germany.
ROBERT F. WHITE, 'Primary Examiner.
GEORGE E. LOWRANCE, Examiner.
R; B. MOFFITT; Assistant Examiner.
Claims (1)
1. THE METHOD OF FORMING A MOLDED PLASTIC TOTE CASE HAVING A RECTANGULAR BOTTOM, SAID METHOD COMPRISING THE STEP OF INJECTING THERMOPLASTIC MATERIAL FROM THE CENTER OF SAID BOTTOM ALONG A PLURALITY OF FLOW LINES WHICH CROSS ONE ANOTHER AND ARE OF THE SAME LENGTH TO THE PE-
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US335739A US3264396A (en) | 1964-01-06 | 1964-01-06 | Method of injection molding a tote case |
DED30357U DE1928957U (en) | 1964-01-06 | 1964-12-17 | LOADING BOX AND METHOD OF MANUFACTURING THE LOADING BOX. |
GB51539/64A GB1067738A (en) | 1964-01-06 | 1964-12-18 | Plastics carrying case or crate and method of making the same |
NL6415231A NL6415231A (en) | 1964-01-06 | 1964-12-30 | |
FR895A FR1420818A (en) | 1964-01-06 | 1965-01-05 | Plastic transport box and method of manufacturing the same |
BE657908D BE657908A (en) | 1964-01-06 | 1965-01-05 | |
US544326A US3362576A (en) | 1964-01-06 | 1966-02-23 | Plastic tote case and method of making same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US335739A US3264396A (en) | 1964-01-06 | 1964-01-06 | Method of injection molding a tote case |
Publications (1)
Publication Number | Publication Date |
---|---|
US3264396A true US3264396A (en) | 1966-08-02 |
Family
ID=23313067
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US335739A Expired - Lifetime US3264396A (en) | 1964-01-06 | 1964-01-06 | Method of injection molding a tote case |
US544326A Expired - Lifetime US3362576A (en) | 1964-01-06 | 1966-02-23 | Plastic tote case and method of making same |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US544326A Expired - Lifetime US3362576A (en) | 1964-01-06 | 1966-02-23 | Plastic tote case and method of making same |
Country Status (6)
Country | Link |
---|---|
US (2) | US3264396A (en) |
BE (1) | BE657908A (en) |
DE (1) | DE1928957U (en) |
FR (1) | FR1420818A (en) |
GB (1) | GB1067738A (en) |
NL (1) | NL6415231A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3436446A (en) * | 1966-06-08 | 1969-04-01 | Union Carbide Corp | Molding of foamed thermoplastic articles |
US5560884A (en) * | 1992-11-23 | 1996-10-01 | Esterline Technologies Corporation | Method of producing a molded woven cable |
US5660784A (en) * | 1994-01-27 | 1997-08-26 | Cruce; Christopher J. | Method of making plastic open frame basket construction |
US5690886A (en) * | 1994-04-15 | 1997-11-25 | Nifco, Inc. | Method for molding a speaker grille |
US20050224386A1 (en) * | 2004-04-08 | 2005-10-13 | United States Postal Service | Lightweight interlocking container |
US20130111836A1 (en) * | 2009-10-30 | 2013-05-09 | Macneil Ip Llc | Injection molded floor tiles with drainage vents |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1586624C3 (en) * | 1967-04-19 | 1978-03-09 | Wolfgang E. 4442 Bentheim Friedrich | Collapsible transport box |
US3392875A (en) * | 1967-06-22 | 1968-07-16 | Ms Ind Inc | Stacking tray with 90 u deg. nesting |
US3506154A (en) * | 1968-07-08 | 1970-04-14 | Laidlaw Corp | Plastic case for milk bottles |
US4023680A (en) * | 1971-09-22 | 1977-05-17 | Dare Plastics Inc. | Bakery tray |
US4125187A (en) * | 1974-10-21 | 1978-11-14 | Amerace Corporation | Thermoplastic casing and method of manufacturing same |
USD382405S (en) * | 1995-09-01 | 1997-08-19 | Aberdeen Plastics Co., Inc. | Stackable bin |
US5593037A (en) * | 1995-09-01 | 1997-01-14 | Ohayon; Abraham | Stackable bins |
WO2009075686A1 (en) * | 2007-12-13 | 2009-06-18 | Ropak Corporation | Container apparatus and related methods |
US8256640B2 (en) * | 2007-12-13 | 2012-09-04 | Ropak Corporation | Container apparatus and related methods |
US8540076B2 (en) * | 2011-10-24 | 2013-09-24 | Gary Bucholz | Stackable construction container |
USD771339S1 (en) | 2015-09-30 | 2016-11-08 | Bway Corporation | Round pail |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2199144A (en) * | 1937-05-03 | 1940-04-30 | Standard Products Co | Method of injecting thermoplastic material into a mold |
US2426651A (en) * | 1946-03-04 | 1947-09-02 | French Oil Mill Machinery | Injection molding |
US2773624A (en) * | 1954-09-20 | 1956-12-11 | Calresin Ind Inc | Plastic case for transporting packaged fresh milk |
DE956026C (en) * | 1953-11-21 | 1957-01-10 | Paul Bartkewitz | Container for ink, colors |
US2847712A (en) * | 1952-11-10 | 1958-08-19 | Bristol Aircraft Ltd | Method of molding ribbed structures from thermosetting resin and fibrous material |
FR1240706A (en) * | 1959-07-31 | 1960-09-09 | Crate for the transport and presentation of food and other products | |
US3002650A (en) * | 1959-05-27 | 1961-10-03 | Baker Plastic Containers Inc | Stacking case and tote box of plastic material |
US3005572A (en) * | 1959-09-28 | 1961-10-24 | Prophylactic Brush Co | Plastic case construction |
FR1294166A (en) * | 1960-04-01 | 1962-05-26 | Suisse Horlogerie | Integrated circuit electronic device |
US3107026A (en) * | 1959-11-13 | 1963-10-15 | Novo Ind Corp | Carrying case for soft drinks and the like |
US3129838A (en) * | 1961-04-06 | 1964-04-21 | Iii Clark C Wormer | Beverage bottle case |
US3132197A (en) * | 1961-06-05 | 1964-05-05 | Phillips Petroleum Co | Warp free injection molding |
US3159701A (en) * | 1960-12-12 | 1964-12-01 | George L Herter | Injection molding of plastic ammunition case |
US3186586A (en) * | 1962-11-26 | 1965-06-01 | Box Theodor | Plastic carrying case |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB822309A (en) * | 1956-12-18 | 1959-10-21 | Walter Clare | Improvements in riddles or members having a cylindrical wall |
US3055531A (en) * | 1959-11-13 | 1962-09-25 | Novo Ind Corp | Carrying case with partitions |
FR1271931A (en) * | 1960-10-25 | 1961-09-15 | Plastic bottle crate |
-
1964
- 1964-01-06 US US335739A patent/US3264396A/en not_active Expired - Lifetime
- 1964-12-17 DE DED30357U patent/DE1928957U/en not_active Expired
- 1964-12-18 GB GB51539/64A patent/GB1067738A/en not_active Expired
- 1964-12-30 NL NL6415231A patent/NL6415231A/xx unknown
-
1965
- 1965-01-05 BE BE657908D patent/BE657908A/xx unknown
- 1965-01-05 FR FR895A patent/FR1420818A/en not_active Expired
-
1966
- 1966-02-23 US US544326A patent/US3362576A/en not_active Expired - Lifetime
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2199144A (en) * | 1937-05-03 | 1940-04-30 | Standard Products Co | Method of injecting thermoplastic material into a mold |
US2426651A (en) * | 1946-03-04 | 1947-09-02 | French Oil Mill Machinery | Injection molding |
US2847712A (en) * | 1952-11-10 | 1958-08-19 | Bristol Aircraft Ltd | Method of molding ribbed structures from thermosetting resin and fibrous material |
DE956026C (en) * | 1953-11-21 | 1957-01-10 | Paul Bartkewitz | Container for ink, colors |
US2773624A (en) * | 1954-09-20 | 1956-12-11 | Calresin Ind Inc | Plastic case for transporting packaged fresh milk |
US3002650A (en) * | 1959-05-27 | 1961-10-03 | Baker Plastic Containers Inc | Stacking case and tote box of plastic material |
FR1240706A (en) * | 1959-07-31 | 1960-09-09 | Crate for the transport and presentation of food and other products | |
US3005572A (en) * | 1959-09-28 | 1961-10-24 | Prophylactic Brush Co | Plastic case construction |
US3107026A (en) * | 1959-11-13 | 1963-10-15 | Novo Ind Corp | Carrying case for soft drinks and the like |
FR1294166A (en) * | 1960-04-01 | 1962-05-26 | Suisse Horlogerie | Integrated circuit electronic device |
US3159701A (en) * | 1960-12-12 | 1964-12-01 | George L Herter | Injection molding of plastic ammunition case |
US3129838A (en) * | 1961-04-06 | 1964-04-21 | Iii Clark C Wormer | Beverage bottle case |
US3132197A (en) * | 1961-06-05 | 1964-05-05 | Phillips Petroleum Co | Warp free injection molding |
US3186586A (en) * | 1962-11-26 | 1965-06-01 | Box Theodor | Plastic carrying case |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3436446A (en) * | 1966-06-08 | 1969-04-01 | Union Carbide Corp | Molding of foamed thermoplastic articles |
US5560884A (en) * | 1992-11-23 | 1996-10-01 | Esterline Technologies Corporation | Method of producing a molded woven cable |
US5855834A (en) * | 1992-11-23 | 1999-01-05 | Ysbrand; Floyd | Method of producing a molded woven cable |
US5660784A (en) * | 1994-01-27 | 1997-08-26 | Cruce; Christopher J. | Method of making plastic open frame basket construction |
US5690886A (en) * | 1994-04-15 | 1997-11-25 | Nifco, Inc. | Method for molding a speaker grille |
US20050224386A1 (en) * | 2004-04-08 | 2005-10-13 | United States Postal Service | Lightweight interlocking container |
US20130111836A1 (en) * | 2009-10-30 | 2013-05-09 | Macneil Ip Llc | Injection molded floor tiles with drainage vents |
Also Published As
Publication number | Publication date |
---|---|
BE657908A (en) | 1965-07-05 |
GB1067738A (en) | 1967-05-03 |
NL6415231A (en) | 1965-07-07 |
DE1928957U (en) | 1965-12-09 |
US3362576A (en) | 1968-01-09 |
FR1420818A (en) | 1965-12-10 |
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