UST102302I4 - Method for the production of apertures in polystyrene foam sheet - Google Patents

Method for the production of apertures in polystyrene foam sheet Download PDF

Info

Publication number
UST102302I4
UST102302I4 US06/298,709 US29870981A UST102302I4 US T102302 I4 UST102302 I4 US T102302I4 US 29870981 A US29870981 A US 29870981A US T102302 I4 UST102302 I4 US T102302I4
Authority
US
United States
Prior art keywords
foam
apertures
slits
polystyrene foam
production
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.)
Pending
Application number
US06/298,709
Inventor
Nicholas D. Commisso
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 filed Critical
Priority to US06/298,709 priority Critical patent/UST102302I4/en
Application granted granted Critical
Publication of UST102302I4 publication Critical patent/UST102302I4/en
Pending legal-status Critical Current

Links

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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0081—Shaping techniques involving a cutting or machining operation before shaping
    • 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
    • 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
    • B29L2031/737—Articles provided with holes, e.g. grids, sieves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

A method and apparatus for producing apertures such as ventilation holes and the like in a preformed sheet of polystyrene foam which comprises forming slits which extend completely through the foam structure, the slits being arranged in a predetermined pattern, and passing the preslit foam through a heating zone such as a preheat oven used in plastic thermoforming operations. The resultant heated sheet of foam, as it emerges from the oven, is characterized by having a plurality of openings or apertures in locations corresponding to the slits which were made in the foam prior to preheating. The aperture containing sheets may be subsequently subjected to a thermoforming operation whereby thermoformed objects such as produce containers are produced having ventilation openings, i.e. apertures, located in a predetermined disposition around the thermoformed tray structure.
US06/298,709 1975-11-20 1981-09-02 Method for the production of apertures in polystyrene foam sheet Pending UST102302I4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/298,709 UST102302I4 (en) 1975-11-20 1981-09-02 Method for the production of apertures in polystyrene foam sheet

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US63377775A 1975-11-20 1975-11-20
US82912677A 1977-08-30 1977-08-30
US95154778A 1978-10-16 1978-10-16
US8878879A 1979-10-29 1979-10-29
US06/298,709 UST102302I4 (en) 1975-11-20 1981-09-02 Method for the production of apertures in polystyrene foam sheet

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US8878879A Continuation 1975-11-20 1979-10-29

Publications (1)

Publication Number Publication Date
UST102302I4 true UST102302I4 (en) 1982-10-05

Family

ID=27536524

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/298,709 Pending UST102302I4 (en) 1975-11-20 1981-09-02 Method for the production of apertures in polystyrene foam sheet

Country Status (1)

Country Link
US (1) UST102302I4 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5346664A (en) * 1992-05-11 1994-09-13 Harry Lenson Apparatus and method for forming a ribbon of continuously connected dish-shaped sequins
WO2003028965A1 (en) * 2001-09-28 2003-04-10 Sealed Air Limited A thermo-formed container and a method and apparatus for producing the same
US20100330330A1 (en) * 2009-06-26 2010-12-30 Nicholas De Luca Expandable foam sheet that locks in expanded configuration
US20110056886A1 (en) * 2009-06-26 2011-03-10 Nicholas De Luca Oil spill recovery process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5346664A (en) * 1992-05-11 1994-09-13 Harry Lenson Apparatus and method for forming a ribbon of continuously connected dish-shaped sequins
WO2003028965A1 (en) * 2001-09-28 2003-04-10 Sealed Air Limited A thermo-formed container and a method and apparatus for producing the same
US20100330330A1 (en) * 2009-06-26 2010-12-30 Nicholas De Luca Expandable foam sheet that locks in expanded configuration
US20110056886A1 (en) * 2009-06-26 2011-03-10 Nicholas De Luca Oil spill recovery process
US8486507B2 (en) 2009-06-26 2013-07-16 Cryovac, Inc. Expandable foam sheet that locks in expanded configuration

Similar Documents

Publication Publication Date Title
AU572314B2 (en) Embossing microstructure with heating
GB1424338A (en) Moulding device
UST102302I4 (en) Method for the production of apertures in polystyrene foam sheet
ES451832A1 (en) Process for the production of polyolefin foam sheets containing pore regulators
ES8203699A1 (en) A METHOD OF MANUFACTURING A CONTAINER THAT IS RESISTANT TO GRA-SA HOT WHEN HEATED IN A MICROWAVE OVEN
JPS61143116A (en) Manufacture of molded sheet
ATE28885T1 (en) PROCESS FOR THE MANUFACTURE OF POLYOLEFIN FOAM.
JPS529071A (en) Process for producing thermoplastic resin foam sheet
GB2043648B (en) Process for producing a foamed polystrene board
GB1463063A (en) Process for producing moulded expanded urea-formaldehyde products
IL87109A (en) Method and apparatus for thermoforming extruded semifinished products
BE847834A (en) FOAM SHEET AND FOAM SHEET PRODUCTION PROCESS,
JPS5680432A (en) Manufacture of foamed resin container
US3573124A (en) Process for the manufacture of multilayer,cold-moldable and thermoformable complex or sandwich
JPS649186A (en) Food container for cooking by microwave oven
ES2107973A1 (en) Process for the decoration of food products
JPS5759728A (en) Preparation of container
JPS55158942A (en) Method and apparatus for producing foamed sheet
JPS5931445B2 (en) Manufacturing method for uneven decorative material
JPS57176133A (en) Method and apparatus for preexpanding foaming thermoplastic resin grains
JPS55121033A (en) Method of embossing solid pattern on expanded resin layer
FR2439658A1 (en) Vertical path ovens for preheating continuous sheet - approaching thermo-forming press, for ease of removal of volatiles and control of sheet face temp. differentials
JPS5644074A (en) Production of plate for building
JPS5653025A (en) Method and apparatus for producing decorative molding of synthetic resin
JPS56135015A (en) Thermoforming of plastic sheet

Legal Events

Date Code Title Description
STPP Information on status: patent application and granting procedure in general

Free format text: DEFENSIVE PUBLICATION OR SIR FILE