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
NL187491C (en) FORMING MASS BASED ON THERMOPLASTIC POLYMER AND VEGETABLE FIBROUS MATERIALS, METHOD FOR FORMING SHEETS OR PLATES OF SUCH FORM MASS, AND FORMED PRODUCTS PRODUCED FROM SUCH MOLDING MASS.
EP0057483A3 (en) Apparatus and method for debossing and selectively aperturing a resilient plastic web, process of manufacture of such apparatus and a web made therewith
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
KR890003532A (en) Method of manufacturing 2-ply foamed molding
IE45180L (en) Embossed sheet type covering material
JPS61143116A (en) Manufacture of molded sheet
ATE28885T1 (en) PROCESS FOR THE MANUFACTURE OF POLYOLEFIN FOAM.
ES485983A1 (en) Laminating Process and Apparatus
GB1463063A (en) Process for producing moulded expanded urea-formaldehyde products
JPS529071A (en) Process for producing thermoplastic resin foam sheet
NL7612532A (en) PROCESS FOR PREPARING A FLAME RETARDANT HEAT HARDENING VINYL UNSATURATED PRODUCT.
ES2020682B3 (en) METHOD AND APPARATUS FOR THE THERMOFORMING OF SEMI-FINISHED PRODUCTS EXTRUDED IN THE FORM OF SHEETS OR ALVEOLATED PANELS, ESPECIALLY POLYPROPYLENE.
BE847834A (en) FOAM SHEET AND FOAM SHEET PRODUCTION PROCESS,
ES438974A1 (en) Procedure for making thermoconformed objects. (Machine-translation by Google Translate, not legally binding)
FR2328562A1 (en) PROCESS FOR PREPARING AN ARTICLE, IN PARTICULAR A SHEET, OF EXPANDED STYRENE POLYMER
US3573124A (en) Process for the manufacture of multilayer,cold-moldable and thermoformable complex or sandwich
JPS5232060A (en) Process for producing porous plastic sheet laminates
ES2107973A1 (en) Process for the decoration of food products
JPS55158942A (en) Method and apparatus for producing foamed sheet
GB1521037A (en) Manufacture of thin walled plastics articles by thermoforming
JPS5931445B2 (en) Manufacturing method for uneven decorative material
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

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