WO1990010532A1 - Method of attaching appendages to blow moulded products - Google Patents
Method of attaching appendages to blow moulded products Download PDFInfo
- Publication number
- WO1990010532A1 WO1990010532A1 PCT/CA1990/000086 CA9000086W WO9010532A1 WO 1990010532 A1 WO1990010532 A1 WO 1990010532A1 CA 9000086 W CA9000086 W CA 9000086W WO 9010532 A1 WO9010532 A1 WO 9010532A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dowel
- undercut
- parison
- mould
- product
- Prior art date
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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/54—Moulds for undercut articles
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/66—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
- B29C65/665—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined using shrinking during cooling
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
- B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
-
- 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
- B65D25/28—Handles
- B65D25/2802—Handles fixed, i.e. non-swingable, handles
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/54—Moulds for undercut articles
- B29C2049/542—Moulds for undercut articles having means to facilitate the removal of the blow moulded articles
- B29C2049/546—Moulds for undercut articles having means to facilitate the removal of the blow moulded articles by translatorilly actuating an auxiliary mould part while the mould is still in a closed 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
- B29C49/041—Extrusion blow-moulding using an accumulator head
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/126—Tenon and mortise joints
-
- 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
- B29L2031/46—Knobs or handles, push-buttons, grips
- B29L2031/463—Grips, handles
-
- 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
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7172—Fuel tanks, jerry cans
Definitions
- This invention relates in general to blow moulding of plastic products, and more particularly to a method of attaching appendages to blow moulded articles.
- Extrusion blow moulding is a well known process for fabricating plastic products such as containers, fuel tanks, etc.
- a parison is extruded through a die at a given melt temperature appropriate for the raw material.
- a mould is shaped in the form of a negative image of the desired final product outer surface.
- the extruded parison is pinched off at a bottom portion thereof while a narrow blowpipe is inserted from the bottom into the internal cavity of the tube.
- high pressure gas is introduced into the parison (i.e. via a needle or blow pin) such that the extruded parison expands against the mould, for shaping the plastic to the desired product geometry.
- the mould is then opened and the final plastic product is removed therefrom.
- a method for creating a blow moulded product comprising the steps of extruding a parison tube (3) into a cavity formed between opposite halves of a mould (5) , pinching off a topmost portion of said parison via crimping apparatus (7 and 9) , admitting high pressure compressed gas into the inner portion of said parison tube via an gas blow pin (11) for inflating the tube against said opposite halves of said mould and thereby create said blow moulded product, the improvement comprising the steps of projecting an undercut dowel (13) from an inner wall of at least one of said opposite halves of said mould such that said parison forms around and conforms to the shape of said dowel to thereby create said blow moulded product, separating said product from said dowel thereby leaving an undercut in said parison in the shape of said dowel, removing said blow moulded product from said mould and inserting pin portions (19 and 21) of an appendage (17) into said undercut prior to cooling of
- Figure 1 is a cross sectional view of standard extrusion blow processing equipment incorporating a hydraulically retractable dowel in accordance with the present invention
- Figure 2 is an enlarged cross sectional view of the dowel illustrated in Figure 1;
- Figures 3A-3D illustrate a handle for attachment to a plastic product in accordance with the present invention
- Figure 4 is a detailed view of the dowel illustrated in Figures 1 and 2.
- standard extrusion blow processing equipment comprising an accumulator head 1 for extruding a heated fluid plastic parison 3 into a mould 5 consisting of two cavities.
- the parison is pinched off at top and bottom ends thereof via crimping apparatus 7 and 9 (e.g. pinch plates).
- a needle or blow pin 11 extends into the extruded parison for admitting a high pressure flow of compressed gas for inflating the plastic tube against the shaped walls of the mould 5.
- a dowel 13 extends through an aperture in the mould 5 such that the blown plastic tube envelops and conforms to the shape of the dowel, forming an undercut in the surface of the moulded plastic product, as shown best with reference to Figure 2.
- the dowel 13 is hydraulically retracted via a hydraulic cylinder 15, the mould 5 is opened, and the product is removed.
- any appendages such as the handle 17 shown in Figures 3A-3D, may immediately be attached to the plastic product by inserting pin portions 19 and 21 into corresponding positioned undercuts in the product while the plastic is still shrinking.
- the undercut effectively shrinks during cooling around the pins 19 forming a secure connection of the handle or other appendage, without requiring expensive post-mould welding equipment, etc.
- Figures 3A-3D show a preferred form of handle for attachment to a plastic product (e.g. vehicle fuel tank, container, etc.), in accordance with the process of the present invention.
- a plastic product e.g. vehicle fuel tank, container, etc.
- the process and apparatus of the present invention may advantageously be used to attach virtually any other type of appendage such as clips, straps, etc.
- the dowel 13 is shown in Figure 1 as being hydraulically operated, other mechanical or electro-mechanical dowel operation means may be used.
- the process of the present invention makes use of the approximately 2-4% total shrinkage of a blow extruded plastic product during cooling, to implement a process for creating an undercut in the plastic product during blow extrusion and attaching appendages thereto by means of appropriate dimension pins inserted into the undercut while the product is cooling, such that the undercut shrinks around the appendage pin forming a secure connection.
- Other embodiments and variations are contemplated.
- D and B can be greater or less than as discussed with reference to the successful prototype, provided the relation therebetween conforms to the above discussed upper and lower limits.
- one or more ejector pins may be housed within the wall of the moulding and ejected therefrom for forcing the product away from the dowel 13 and the mould wall within the vicinity of the dowel, instead of retracting the dowel into the wall.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
In a method for creating a blow moulded product comprising the steps of extruding a parison tube (3) into a cavity formed between opposite halves of a mould (5), pinching off end portions of the parison via crimping apparatus (7 and 9), admitting high pressure compressed gas into the inner portion of the parison tube via a gas blow pin or needle (11) for inflating the tube against the opposite halves of the mould and thereby create the blow moulded product, the improvement comprising the steps of projecting an undercut dowel (13) from an inner wall of at least one of the opposite halves of the mould such that the parison forms around and conforms to the shape of the dowel, retracting the dowel into the wall thereby leaving an undercut in the parison in the shape of the dowel, removing the blow moulded product from the mould and inserting pin portions (19 and 21) of an appendage (17) into the undercut prior to cooling of the parison whereby the undercut shrinks around the pin portions during cooling to form a secure connection of the appendage to the product.
Description
METHOD OF ATTACHING APPENDAGES TO BLOW MOULDED PRODUCTS
Technical Field
This invention relates in general to blow moulding of plastic products, and more particularly to a method of attaching appendages to blow moulded articles. Background Art
Extrusion blow moulding is a well known process for fabricating plastic products such as containers, fuel tanks, etc. In operation, a parison is extruded through a die at a given melt temperature appropriate for the raw material. A mould is shaped in the form of a negative image of the desired final product outer surface. The extruded parison is pinched off at a bottom portion thereof while a narrow blowpipe is inserted from the bottom into the internal cavity of the tube. Next, high pressure gas is introduced into the parison (i.e. via a needle or blow pin) such that the extruded parison expands against the mould, for shaping the plastic to the desired product geometry.
The mould is then opened and the final plastic product is removed therefrom.
It is often desirable to incorporate one or more appendages such as handles, harness clips, etc., to the extruded plastic product.
According to prior art techniques, such additional appendages have been installed via post- moulding processing steps using expensive dedicated plastic weld machinery. The use of additional down-line processing steps and machinery has been found to be labour intensive, and the cost of a typical down-line plastic welding machine (per weld) can be in the vicinity of $100,000 Cdn (1989). Disclosure of the Invention According to the present invention, a simple and inexpensive process is provided for attaching
appendages such as handles or harness clips, etc. onto extrusion moulded products without additional expensive post-moulding welding equipment. In accordance with an aspect of the present invention, there is provided a method for creating a blow moulded product comprising the steps of extruding a parison tube (3) into a cavity formed between opposite halves of a mould (5) , pinching off a topmost portion of said parison via crimping apparatus (7 and 9) , admitting high pressure compressed gas into the inner portion of said parison tube via an gas blow pin (11) for inflating the tube against said opposite halves of said mould and thereby create said blow moulded product, the improvement comprising the steps of projecting an undercut dowel (13) from an inner wall of at least one of said opposite halves of said mould such that said parison forms around and conforms to the shape of said dowel to thereby create said blow moulded product, separating said product from said dowel thereby leaving an undercut in said parison in the shape of said dowel, removing said blow moulded product from said mould and inserting pin portions (19 and 21) of an appendage (17) into said undercut prior to cooling of said product whereby said undercut shrinks around said pin portions during cooling to form a secure connection of said appendage to said product.
Best Mode of Carrying Out the Invention
Figure 1 is a cross sectional view of standard extrusion blow processing equipment incorporating a hydraulically retractable dowel in accordance with the present invention;
Figure 2 is an enlarged cross sectional view of the dowel illustrated in Figure 1;
Figures 3A-3D illustrate a handle for attachment to a plastic product in accordance with the present invention; and
Figure 4 is a detailed view of the dowel illustrated in Figures 1 and 2. Best Mode For Carrying Out the Invention
Turning to Figure 1, standard extrusion blow processing equipment is shown comprising an accumulator head 1 for extruding a heated fluid plastic parison 3 into a mould 5 consisting of two cavities. The parison is pinched off at top and bottom ends thereof via crimping apparatus 7 and 9 (e.g. pinch plates). A needle or blow pin 11 extends into the extruded parison for admitting a high pressure flow of compressed gas for inflating the plastic tube against the shaped walls of the mould 5.
The above described process and apparatus is well known prior art.
However, in accordance with the present invention, a dowel 13 extends through an aperture in the mould 5 such that the blown plastic tube envelops and conforms to the shape of the dowel, forming an undercut in the surface of the moulded plastic product, as shown best with reference to Figure 2.
Once the parison has been blown against the mould walls and around dowel 13, the dowel 13 is hydraulically retracted via a hydraulic cylinder 15, the mould 5 is opened, and the product is removed.
It is known that blow moulded plastic products shrink approximately 2-4% during cooling. Thus, in accordance with the present invention, upon removal of the plastic product from the mould, any appendages such as the handle 17 shown in Figures 3A-3D, may immediately be attached to the plastic product by inserting pin portions 19 and 21 into corresponding positioned undercuts in the product while the plastic is still shrinking. Thus, the undercut effectively shrinks during cooling around the pins 19 forming a secure connection of the handle or other appendage,
without requiring expensive post-mould welding equipment, etc.
Figures 3A-3D show a preferred form of handle for attachment to a plastic product (e.g. vehicle fuel tank, container, etc.), in accordance with the process of the present invention. However, the process and apparatus of the present invention may advantageously be used to attach virtually any other type of appendage such as clips, straps, etc. Also, whereas the dowel 13 is shown in Figure 1 as being hydraulically operated, other mechanical or electro-mechanical dowel operation means may be used.
With reference to Figure 4, a detailed view of the undercut dowel 13 is shown with optimized undercut forming diameters of B and D in the range of from B = D (upper limit) to D < 4B (lower limit) . For dimensions of B greater than D, there will be no lip on the undercut such that the undercut will be essentially cylindrical and therefore insufficient to retain the associated pins 19 of the appendage after shrinkage. If the dimensions of D are greater than 4B, the lip on the undercut will be too great, resulting in a portion of the product being ripped out upon separation from the dowel 13 within the blow processing equipment. According to a successful prototype, the dimensions were D = 8 mm and B = 6.5 mm. Industrial Applicability
In summary, the process of the present invention makes use of the approximately 2-4% total shrinkage of a blow extruded plastic product during cooling, to implement a process for creating an undercut in the plastic product during blow extrusion and attaching appendages thereto by means of appropriate dimension pins inserted into the undercut while the product is cooling, such that the undercut shrinks around the appendage pin forming a secure connection.
Other embodiments and variations are contemplated.
For example the dimensions of D and B can be greater or less than as discussed with reference to the successful prototype, provided the relation therebetween conforms to the above discussed upper and lower limits.
As a further alternative, one or more ejector pins may be housed within the wall of the moulding and ejected therefrom for forcing the product away from the dowel 13 and the mould wall within the vicinity of the dowel, instead of retracting the dowel into the wall.
All such modifications and embodiments are believed to be within the sphere and scope of the present invention as defined by the claims appended hereto.
Claims
1. In a method for creating a blow moulded product comprising the steps of extruding a parison tube (3) into a cavity formed between opposite halves of a mould (5), pinching off end portions of said parison via crimping apparatus (7 and 9) , admitting high pressure compressed gas into the inner portion of said parison tube via a gas blow pin (11) for inflating the tube against said opposite halves of said mould and thereby creating said blow moulded product, THE IMPROVEMENT COMPRISING THE STEPS OF projecting an undercut dowel (13) from an inner wall of at least one of said opposite halves of said mould such that said parison forms around and conforms to the shape of said dowel, to thereby create said blow moulded product, separating said product from said dowel thereby leaving an undercut in said product in the shape of said dowel, removing said blow moulded product from said mould and inserting pin portions (19 and 21) of an appendage (17) into said undercut during cooling of said product whereby said' undercut shrinks around said pin portions during cooling to form a secure connection of said appendage to said product.
2. The improvement of claim 1 wherein said step of separating comprises retracting said dowel into said wall by hydraulic means.
3. The improvement of claim 1 wherein said step of separating comprises extending one or more ejector pins through said wall adjacent said dowel for forcing said product away from said wall and said dowel.
4. The improvement of claim 1 wherein said dowel is characterized by undercut forming diameters B and D,
where B=D forms an upper diameter limit and D ^ 4B forms a lower diameter limit.
5. The improvement of claim 3 wherein D = 8 mm , and B = 6.5 mm.
6. The improvement of any one of claims 1 to 5 wherein said appendage is one of either a handle or a clip.
7. In a blow moulding apparatus for creating a blow moulded product comprising a cavity formed between opposite halves of a mould (5) , means for extruding a parison tube (3) into said cavity, crimping apparatus (7 and 9) for.pinching off end portions of said parison, a blow pin (11) for admitting high pressure compressed gas into the inner portion of said parison tube for inflating said tube against said opposite halves of said mould and thereby creating said blow moulded product, THE IMPROVEMENT COMPRISING an undercut dowel (13) disposed within an inner wall of at least one of said opposite halves of said mould, and means for selectively projecting and retracting said undercut dowel from said inner wall such that said parison forms around and conforms to the shape of said dowel responsive to projection thereof, and whereby an undercut is formed in said product in the shape of said dowel responsive to retraction thereof for facilitating insertion of pin portions (19 and 21) of an appendage (17) therein.
8. The improvement of claim 7 wherein said dowel is characterized by undercut forming diameters B and D, where B = D forms an upper diameter limit and D <, 4B forms a lower diameter limit.
9. The improvement of claim 8 wherein D = 8mm, and B = 6.5mm.
10. A blow moulded product and connected appendage produced in accordance with the method of claim 1.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8905919.0 | 1989-03-15 | ||
GB898905919A GB8905919D0 (en) | 1989-03-15 | 1989-03-15 | Method of attaching appendages to blow moulded products |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1990010532A1 true WO1990010532A1 (en) | 1990-09-20 |
Family
ID=10653359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA1990/000086 WO1990010532A1 (en) | 1989-03-15 | 1990-03-15 | Method of attaching appendages to blow moulded products |
Country Status (3)
Country | Link |
---|---|
CA (1) | CA2057063A1 (en) |
GB (1) | GB8905919D0 (en) |
WO (1) | WO1990010532A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH682143A5 (en) * | 1990-12-07 | 1993-07-30 | Soplar Sa | Plastic bottle produced by blowing process - comprises two indentations at top acting as link part for rotary pin of flap cover |
US6435856B1 (en) * | 1999-09-24 | 2002-08-20 | Phillips Petroleum Company | Blow molding apparatus with fixedly positioned pin and reciprocating sleeve |
EP1908571A2 (en) | 2006-10-03 | 2008-04-09 | Gino Chiari | Process for forming coupling means on plastic containers obtained by extrusion and blow moulding, and the mould used |
US9221209B2 (en) | 2011-01-14 | 2015-12-29 | The Procter & Gamble Company | Process for the manufacture of a container |
US9346200B2 (en) | 2011-01-14 | 2016-05-24 | The Procter & Gamble Company | Closure for a container |
CN107600666A (en) * | 2017-09-05 | 2018-01-19 | 福建省西海粮油食品有限公司 | One kind can lift plastic containers and its manufacture method |
US9994368B2 (en) | 2012-10-30 | 2018-06-12 | The Procter & Gamble Company | Closure for a container |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR875506A (en) * | 1940-10-02 | 1942-09-25 | Westfalische Metall Ind Aktien | Methods of securing bodies of any shape and composition in molded material sockets |
GB886834A (en) * | 1959-02-27 | 1962-01-10 | Wilkie & Paul Ltd | Improvements in or relating to canisters having carrying handles |
US3140329A (en) * | 1962-05-22 | 1964-07-07 | Beacon Plastics Corp | Attachment means |
FR2053627A5 (en) * | 1969-07-18 | 1971-04-16 | Salvy Ets | Glass plate in injection moulded plastic frame |
FR2149284A1 (en) * | 1971-08-17 | 1973-03-30 | Raffinage Cie Francaise | |
US4363415A (en) * | 1979-09-10 | 1982-12-14 | Rainville Company, Inc. | Blow molded container with separate handle |
DE3145354A1 (en) * | 1981-11-14 | 1983-05-26 | Adolf Illig Maschinenbau Gmbh & Co, 7100 Heilbronn | Process for demoulding containers of thermoplastic sheet and apparatus for carrying out the process |
EP0207764A2 (en) * | 1985-06-29 | 1987-01-07 | Erik Bock | Methods for forming containers |
-
1989
- 1989-03-15 GB GB898905919A patent/GB8905919D0/en active Pending
-
1990
- 1990-03-15 CA CA002057063A patent/CA2057063A1/en not_active Abandoned
- 1990-03-15 WO PCT/CA1990/000086 patent/WO1990010532A1/en active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR875506A (en) * | 1940-10-02 | 1942-09-25 | Westfalische Metall Ind Aktien | Methods of securing bodies of any shape and composition in molded material sockets |
GB886834A (en) * | 1959-02-27 | 1962-01-10 | Wilkie & Paul Ltd | Improvements in or relating to canisters having carrying handles |
US3140329A (en) * | 1962-05-22 | 1964-07-07 | Beacon Plastics Corp | Attachment means |
FR2053627A5 (en) * | 1969-07-18 | 1971-04-16 | Salvy Ets | Glass plate in injection moulded plastic frame |
FR2149284A1 (en) * | 1971-08-17 | 1973-03-30 | Raffinage Cie Francaise | |
US4363415A (en) * | 1979-09-10 | 1982-12-14 | Rainville Company, Inc. | Blow molded container with separate handle |
DE3145354A1 (en) * | 1981-11-14 | 1983-05-26 | Adolf Illig Maschinenbau Gmbh & Co, 7100 Heilbronn | Process for demoulding containers of thermoplastic sheet and apparatus for carrying out the process |
EP0207764A2 (en) * | 1985-06-29 | 1987-01-07 | Erik Bock | Methods for forming containers |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH682143A5 (en) * | 1990-12-07 | 1993-07-30 | Soplar Sa | Plastic bottle produced by blowing process - comprises two indentations at top acting as link part for rotary pin of flap cover |
US6435856B1 (en) * | 1999-09-24 | 2002-08-20 | Phillips Petroleum Company | Blow molding apparatus with fixedly positioned pin and reciprocating sleeve |
US6605247B2 (en) | 1999-09-24 | 2003-08-12 | Phillips Petroleum | Blow molding process |
EP1908571A2 (en) | 2006-10-03 | 2008-04-09 | Gino Chiari | Process for forming coupling means on plastic containers obtained by extrusion and blow moulding, and the mould used |
EP1908571A3 (en) * | 2006-10-03 | 2008-05-07 | Gino Chiari | Process for forming coupling means on plastic containers obtained by extrusion and blow moulding, and the mould used |
US9221209B2 (en) | 2011-01-14 | 2015-12-29 | The Procter & Gamble Company | Process for the manufacture of a container |
US9346200B2 (en) | 2011-01-14 | 2016-05-24 | The Procter & Gamble Company | Closure for a container |
US9994368B2 (en) | 2012-10-30 | 2018-06-12 | The Procter & Gamble Company | Closure for a container |
CN107600666A (en) * | 2017-09-05 | 2018-01-19 | 福建省西海粮油食品有限公司 | One kind can lift plastic containers and its manufacture method |
CN107600666B (en) * | 2017-09-05 | 2023-08-29 | 合发油脂(浙江)有限公司 | Manufacturing method of liftable plastic container |
Also Published As
Publication number | Publication date |
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CA2057063A1 (en) | 1990-09-16 |
GB8905919D0 (en) | 1989-04-26 |
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