CA992716A - Method for filling thin cup cavities with plastic beads - Google Patents

Method for filling thin cup cavities with plastic beads

Info

Publication number
CA992716A
CA992716A CA137,279A CA137279A CA992716A CA 992716 A CA992716 A CA 992716A CA 137279 A CA137279 A CA 137279A CA 992716 A CA992716 A CA 992716A
Authority
CA
Canada
Prior art keywords
plastic beads
filling thin
thin cup
cup cavities
cavities
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
Application number
CA137,279A
Other languages
English (en)
Other versions
CA137279S (en
Inventor
James M. Harrison
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.)
CREST INTERNATIONAL
Original Assignee
CREST INTERNATIONAL
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 CREST INTERNATIONAL filed Critical CREST INTERNATIONAL
Application granted granted Critical
Publication of CA992716A publication Critical patent/CA992716A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3415—Heating or cooling
    • B29C44/3426—Heating by introducing steam in the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • 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
    • B29L2031/7132—Bowls, Cups, Glasses
    • 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
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/10—Foamed polystyrene mold filling
CA137,279A 1971-03-22 1972-03-16 Method for filling thin cup cavities with plastic beads Expired CA992716A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12662871A 1971-03-22 1971-03-22

Publications (1)

Publication Number Publication Date
CA992716A true CA992716A (en) 1976-07-13

Family

ID=22425873

Family Applications (1)

Application Number Title Priority Date Filing Date
CA137,279A Expired CA992716A (en) 1971-03-22 1972-03-16 Method for filling thin cup cavities with plastic beads

Country Status (15)

Country Link
US (1) US3852390A (enExample)
AT (1) AT343348B (enExample)
AU (1) AU451082B2 (enExample)
BE (1) BE780818A (enExample)
CA (1) CA992716A (enExample)
DE (1) DE2213676B2 (enExample)
DK (1) DK134057B (enExample)
FI (1) FI55623C (enExample)
FR (1) FR2130512B1 (enExample)
GB (1) GB1361747A (enExample)
LU (1) LU65001A1 (enExample)
NL (1) NL7203738A (enExample)
NO (1) NO137580C (enExample)
SE (1) SE402548B (enExample)
ZA (1) ZA721788B (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2052754C (en) * 1991-10-03 1994-11-01 Ken Yamamoto Expansion molding method and apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951260A (en) * 1957-10-01 1960-09-06 Crown Machine And Tool Company Molding mechanism and heating arrangement
US3260781A (en) * 1963-07-02 1966-07-12 Haveg Industries Inc Process for thermoforming a shrinkresistant foamed polystyrene cup

Also Published As

Publication number Publication date
DK134057C (enExample) 1977-03-28
FI55623B (fi) 1979-05-31
BE780818A (fr) 1972-07-17
DE2213676A1 (de) 1972-09-28
NL7203738A (enExample) 1972-09-26
LU65001A1 (enExample) 1972-07-10
NO137580C (no) 1978-03-21
FR2130512A1 (enExample) 1972-11-03
US3852390A (en) 1974-12-03
FR2130512B1 (enExample) 1975-04-25
DK134057B (da) 1976-09-06
FI55623C (fi) 1979-09-10
NO137580B (no) 1977-12-12
AT343348B (de) 1978-05-26
DE2213676B2 (de) 1980-02-14
ATA239772A (de) 1977-09-15
AU3971872A (en) 1973-09-13
AU451082B2 (en) 1974-07-10
GB1361747A (en) 1974-07-30
ZA721788B (en) 1972-12-27
SE402548B (sv) 1978-07-10

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