US3390808A - Milk crate - Google Patents

Milk crate Download PDF

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Publication number
US3390808A
US3390808A US576957A US57695766A US3390808A US 3390808 A US3390808 A US 3390808A US 576957 A US576957 A US 576957A US 57695766 A US57695766 A US 57695766A US 3390808 A US3390808 A US 3390808A
Authority
US
United States
Prior art keywords
crate
milk
panel
segment
side panels
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
Application number
US576957A
Other languages
English (en)
Inventor
Rehrig Houston
Richard F Gildart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rehrig Pacific Co Inc
Original Assignee
Rehrig Pacific Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rehrig Pacific Co Inc filed Critical Rehrig Pacific Co Inc
Priority to US576957A priority Critical patent/US3390808A/en
Priority to DE19671586881 priority patent/DE1586881A1/de
Application granted granted Critical
Publication of US3390808A publication Critical patent/US3390808A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B65D1/40—Details of walls
    • B65D1/42—Reinforcing or strengthening parts or members
    • 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

Definitions

  • a molded plastic milk crate having side panels the upper portion of which are formed as an integrally molded open grid providing substantial rigidity in a direction normal to the side panels while permitting differential shrinkage within the plane of the side panels to minimize buckling of the panels upon removal of the crate from the forming mold.
  • the crate is provided with substantially triangular shaped hand-holds having substantially horizontal upper edges and having lower edges inclined downwardly to act as a cam and thereby prevent articles inserted in the crate from engaging and hanging on the lower edge of the hand-hold.
  • This invention relates to material handling crates, and more particularly to crates molded from a synthetic resin material and suitable for handling milk bottles, cartons, or the like.
  • plastic crates are their light weight, the ease with which they may be cleaned, and their neat and attractive appearance which is not materially altered with age.
  • some difficulty has been experienced with the molded plastic crates due, primarily, to the tendency of the plastic material of newly molded crates to shrink and become distorted or warped after the crate is removed from the forming mold.
  • Another object of the invention is to provide a molded plastic milk crate having means for eliminating the tend- ICC ency of articles being dropped into the crate from hanging on the hand-hold provided in the side panels of the crate.
  • an important feature of the invention resides in providing a molded plastic crate in which the upper segment of the side panels of the crate are formed as an open grid, with the thickness of the grid segment in the direction normal to the panel being substantially greater than the transverse dimension of the individual grid elements to provide a relatively rigid lightweight panel having great resistance to buckling.
  • a generally triangular shaped hand-hold is provided in the grid section of the side panel, with one side of the triangle being substantially parallel to the top of the crate and spaced adjacent to and below the conventional metallic reinforcing ring. The remaining two sides of the hand-hold are inclined downwardly at a relatively large angle so that these lower sides of the handhold will act as a cam to deflect falling cartons of milk inwardly when the bottom portion of the handle has buckled inwardly.
  • FIG. 1 is an elevation view of a molded plastic milk crate embodying the present invention.
  • FIG. 2 is a fragmentary sectional view, taken on line 22 of FIG. 1, with a milk carton, shown in phantom, being dropped into the crate.
  • a molded plastic milk crate embodying the invention is illustrated generally by the reference numeral 1, and includes :a generally rectangular bottom panel 2 and side panels 3 extending upwardly from the side edges of the bottom panel 2.
  • Side panels 2 are all identical and therefore only one has been shown or will be described.
  • a pair of vertically spaced flanges 4, 5 are integrally molded around the top of the crate and project outwardly therefrom to define a channel for receiving an endless metallic reinforcing ring 6.
  • a pair of coined lugs 7 extend upwardly from the metallic reinforcing ring and project into the uppermost flange 4 to firmly secure the upward edge of the side panel 3 to the reinforcing ring.
  • the side panel 3 of the crate 1 includes a relatively thin, substantially planar lower segment or panel 10 and an integrally molded open grid upper panel segment 11.
  • the upper panel segment 11 is relatively thick, as compared to the lower panel 10, in the direction normal to the side panel 3, with this thickness ratio being at least 3 to 1 and preferably approximately 4 to 1.
  • the panel segment 11 is relatively thick and therefore rigid in the direction normal to the side panel 3, it is nevertheless relatively light weight, with the transverse thickness of the individual grid segments 12 being substantially equal to the thickness of the panel 10 to thereby provide for relatively uniform cooling of the side panel upon removal from the injection mold.
  • the open grid readily accommodates any differential shrinking or contraction of the material forming the crate. Therefore, any tendency of the side panel to buckle within this area of the open grid due to shrinkage of the plastic is materially reduced or entirely eliminated.
  • an elongated, laterally extending, hand-hold is normally provided adjacent the top edge of each of the side panels of the crate to thereby provide a handle.
  • the hand-hold 15 is generally triangular in shape, as illustrated in FIG.
  • any inward deflection of the side panel 3 in the area of the intersection of sides 17 and 18 will result in sides 17 and 18 being inclined inwardly from side 16 so that a carton being dropped into the milk crate will engage one or both-of the sides 17,
  • a milk crate having a generally rectangular bottom panel and integrally molded plastic side panels extending upwardly from said bottom panel, and an endless reinforcing ring extending around the outer periphery of said crate and attached to said side panels adjacent the top edge thereof, the improvement wherein at least two opposing side panels each comprise a substantially planar lower segment and an integrally molded open grid structure defining an upper segment, the inner surface of said lower and upper segments being substantially co-planar substantially and said side panels being completely unsupported intermediate the side edges thereof and intermediate said bottom panel and said reinforcing ring, the dimension of said upper segment in a direction normal thereto being substantially greater than the thickness of said planar segment, and a generally triangular hand-hold formed in the grid segment to provide, incooperation with said reinforcing ring, a carrying handle adjacent the top of each said panel having a hand-hold formed therein, said handheld having one side extending substantially parallel to and spaced 'from the top edge of the associated side panel, with the remaining two sides of the respective hand
  • each of said side panels includes said grid segment and said triangular shaped hand-hold to provide a carrying handle adjacent the top of each side panel of said crate, said grid structure including a plurality of elongated grid segments each extending generally parallel to one .of said remaining two sides, said grid segments cooperating to define a plurality of generally rectangular openings in said upper segment of said side walls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
US576957A 1966-09-02 1966-09-02 Milk crate Expired - Lifetime US3390808A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US576957A US3390808A (en) 1966-09-02 1966-09-02 Milk crate
DE19671586881 DE1586881A1 (de) 1966-09-02 1967-05-17 Milchkasten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US576957A US3390808A (en) 1966-09-02 1966-09-02 Milk crate

Publications (1)

Publication Number Publication Date
US3390808A true US3390808A (en) 1968-07-02

Family

ID=24306700

Family Applications (1)

Application Number Title Priority Date Filing Date
US576957A Expired - Lifetime US3390808A (en) 1966-09-02 1966-09-02 Milk crate

Country Status (2)

Country Link
US (1) US3390808A (de)
DE (1) DE1586881A1 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997074A (en) * 1974-03-13 1976-12-14 Worldwide Plastics Development Limited Crate
US3999774A (en) * 1975-06-20 1976-12-28 Houston Rehrig Cart with plastic basket
US4520941A (en) * 1984-09-14 1985-06-04 Rehrig Pacific Company Water bottle crate
US4865338A (en) * 1988-04-04 1989-09-12 Rehrig International, Inc. Container with reinforcing ring
US4946059A (en) * 1988-04-04 1990-08-07 Rehrig International, Inc. Reinforced plastic basket
US6981708B1 (en) 2005-01-28 2006-01-03 United Steel & Wire Company Shopping cart basket
US20070095844A1 (en) * 2005-10-31 2007-05-03 Norseman Plastics Ltd. Crate
US20100230318A1 (en) * 2009-03-13 2010-09-16 Stahl Edward L Multiple Cap Size Bottle Crate
US20100288654A1 (en) * 2007-09-27 2010-11-18 Orbis Canada Limited Bottle Crate
US20100300912A1 (en) * 2008-06-18 2010-12-02 Orbis Canada Limited Beverage Crate with Constant-Diameter Pockets
USD749323S1 (en) 2014-11-10 2016-02-16 Orbis Corporation Beverage crate
US20180134438A1 (en) * 2016-11-16 2018-05-17 Francisco Felix Araujo Multipurpose jaba-type agricultural container, and its manufacturing process
US11518044B2 (en) * 2019-07-29 2022-12-06 Shenzhen Dorabot Inc. End effector, robot and package sorting system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530481A (en) * 1945-11-05 1950-11-21 Kaiser Aluminium Chem Corp Milk crate
US2743030A (en) * 1953-02-16 1956-04-24 Gen Tire & Rubber Co Carrying cases
US2970715A (en) * 1958-11-17 1961-02-07 Richardson Co Bottled beverage carrying case

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530481A (en) * 1945-11-05 1950-11-21 Kaiser Aluminium Chem Corp Milk crate
US2743030A (en) * 1953-02-16 1956-04-24 Gen Tire & Rubber Co Carrying cases
US2970715A (en) * 1958-11-17 1961-02-07 Richardson Co Bottled beverage carrying case

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997074A (en) * 1974-03-13 1976-12-14 Worldwide Plastics Development Limited Crate
US3999774A (en) * 1975-06-20 1976-12-28 Houston Rehrig Cart with plastic basket
US4520941A (en) * 1984-09-14 1985-06-04 Rehrig Pacific Company Water bottle crate
US4865338A (en) * 1988-04-04 1989-09-12 Rehrig International, Inc. Container with reinforcing ring
EP0336532A1 (de) * 1988-04-04 1989-10-11 Rehrig International, Inc. Behälter mit einem Verstärkungsring
US4946059A (en) * 1988-04-04 1990-08-07 Rehrig International, Inc. Reinforced plastic basket
US6981708B1 (en) 2005-01-28 2006-01-03 United Steel & Wire Company Shopping cart basket
US20070095844A1 (en) * 2005-10-31 2007-05-03 Norseman Plastics Ltd. Crate
US8607971B2 (en) 2007-09-27 2013-12-17 Orbis Canada Limited Bottle crate
US20100288654A1 (en) * 2007-09-27 2010-11-18 Orbis Canada Limited Bottle Crate
US8328009B2 (en) 2007-09-27 2012-12-11 Orbis Canada Limited Bottle crate
US9174760B2 (en) 2007-09-27 2015-11-03 Orbis Canada Limited Bottle crate
US20100300912A1 (en) * 2008-06-18 2010-12-02 Orbis Canada Limited Beverage Crate with Constant-Diameter Pockets
US8757420B2 (en) 2008-06-18 2014-06-24 Orbis Canada Limited Beverage crate with constant-diameter pockets
US9428321B2 (en) 2008-06-18 2016-08-30 Orbis Canada Limited Beverage crate with constant-diameter pockets
US20100230318A1 (en) * 2009-03-13 2010-09-16 Stahl Edward L Multiple Cap Size Bottle Crate
USD749323S1 (en) 2014-11-10 2016-02-16 Orbis Corporation Beverage crate
US20180134438A1 (en) * 2016-11-16 2018-05-17 Francisco Felix Araujo Multipurpose jaba-type agricultural container, and its manufacturing process
US11518044B2 (en) * 2019-07-29 2022-12-06 Shenzhen Dorabot Inc. End effector, robot and package sorting system

Also Published As

Publication number Publication date
DE1586881A1 (de) 1970-10-22

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