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Class 264/318 - Molding trapped undercut article portion


Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes directed to the molding of articles of such irregular
No. of patents: 415
Last issue date: 05/08/2012


1                      
NumberTitleIssue Date
8173057Waste container and related method of manufacture
A method of forming a container includes providing a mold including at least one bulbous protrusion. The mold is closed to form a mold cavity corresponding to the shape of the container, with the bulbous protrusion being positioned in the mold cavity. Material is in...
05/08/2012
8168108Molding apparatus and method of forming undercuts
A molding apparatus can include a primary mold, a stripper, and a swinging member. The swinging member can comprise a molding surface defining an undercut portion of a molded item. The swinging member can directly contact or attached to the stripper and the primary ...
05/01/2012
8133426Injection molding with controlled part flexing
An injection molding process and apparatus are described in which a workpiece is formed using an injection molding tool. The mold composed of a cavity formed by a core and a plurality of cavity sides, wherein the workpiece has a plurality of undercut features formed...
03/13/2012
7939005Apparatuses for forming objects with undercut portions
An apparatus for forming an object from a dose of plastics comprises a die arrangement provided with a cavity for receiving said dose and with at least two parts that are reciprocally movable for shaping an undercut portion of said object, at least one fluid for app...
05/10/2011
7922958Method of making an elongate syringe barrel
A syringe and detachable needle assembly having binary attachment features include an elongate syringe barrel having a longitudinal axis, an open proximal end and an open distal end including a collar. The collar includes the cylindrically shaped sidewall having an ...
04/12/2011
7846370Threaded core, injection molded apparatus method for making lens barrel
A threaded core includes a first half core and a second half core. The first half core includes a core body and a movable core portion. The core body has a body surface and an end face adjacent to the body surface. An outside threaded portion is defined in the end f...
12/07/2010
7790087Apparatus for the fabrication of a lipstick lead with two components
Molding apparatus (1) for molding of materials consisting of at least two components, in particular for molding lipstick leads with at least one mold (2) in which the material to be molded may be poured and with a core (3) which may be inserted ...
09/07/2010
7731886Method of manufacturing a filter cartridge
An injection moulding assembly includes a male moulding member surrounded by a female moulding member forming a void between them that upon injection of molten plastics into the mould a container can be formed. The moulding assembly includes a guide rod and ejection...
06/08/2010
7632447Molding a leaching chamber sidewall
An arch shape cross section thermoplastic leaching chamber, having sidewall slot perforations which flare inwardly, is made using a mold comprised of a mold cavity part and an inwardly retractable mold core part. The core part has opposing side slides with projectio...
12/15/2009
7510677Apparatus and method for removing a molded article from a mold, and a molded article
Injection molding method and apparatus for ejecting a molded plastic article from a mold. A lifting structure and/or step is provided with a lifting portion which is configured to contact substantially one half of an end of the molded plastic article along a line su...
03/31/2009
7442032Injection mold having a cam actuator to move a sliding block
An injection mold includes a first mold part (10), a second mold part (50) mating with the first mold part, a sliding block (20), a cam actuator (30), and a rack (40). The sliding block is movably disposed on the first mold part. T...
10/28/2008
7438845Method for manufacturing article with integrally formed hooks with shear at hook-bearing surface
A molded article having a field of molded hooks formed integrally thereon is made in a mold in which the hook-forming cavities are on a surface of a retractable mold insert. The insert is retracted from the molded article prior to the article's release from the mold...
10/21/2008
7435079Angular ejector mechanism and injection mold with the same
An angular ejector mechanism for ejecting a plastic article with a recess in an inner side includes an angular ejector pin, a sliding pin, an elastic elements and a stopping block. The angular ejector pin includes a molding plate and a supporting plate. A moving hol...
10/14/2008
7410606Methods for manufacturing three-dimensional devices and devices created thereby
A process of making a casting includes the steps of designing a mold (1010), fabricating the layers (or laminations) of the mold (1020), stacking and assembling the laminations into a mold (1030), producing a casting (1060) and demolding ...
08/12/2008
7396495Structural member
A method for producing a block having a flat bottom, a flat top which is parallel to the bottom and sidewalls which extend between the bottom and the top is disclosed. At least three cooperating mold parts are assembled on a first plate to produce assembled mold par...
07/08/2008
7393490Molding method for vehicular lamp part and molding apparatus for vehicular lamp part
A molding method and apparatus includes movable die 30 and fixed die 20 which form cavity 50, and extrusion plate 40 movable in the die closing/opening direction. A die surface 32b corresponding to the undercut portion is fo...
07/01/2008
7378046Method of molding rack-mountable cable manager
An integrally molded rack-mountable manager for managing the routing of cables along a network rack supporting electrical components having distinct rows of ports. The manager includes an integrally molded channel having a base portion and a pair of slotted side wal...
05/27/2008
7364680Method of manufacturing a plurality of common components
A method of forming a plurality of components comprising the steps of: closing a pair of mold halves to define a mold chamber; filling the mold chamber with a material about an armature; curing the material within the mold chamber to create a stack of material; movi...
04/29/2008
7351369Molded twist-on wire connector
A wire connector wherein the wire engaging core and electrically insulated housing are molded with an exterior surface of a molded wire engaging core used as a mold surface as the electrically insulated housing is molded around the wire engaging core to provide a wi...
04/01/2008
7347962Apparatus and method for manufacturing a socket end of a pipe part provided with a sealing ring
Apparatus for manufacturing a socket end (12) which is provided with a sealing ring (9). The apparatus comprises an outer mould (1) for forming the outer contour of the sealing ring (9) and for forming the outer side of the socket end (
03/25/2008
7341444Garment hanger and molding apparatus
An injection molding apparatus 80 has a cavity 64 and core 65 co-operatively defining a void of inverted J-shape transverse cross-section for molding a garment hanger 10. A first leg 115, 127 of the J-shape cross-section forms a fr...
03/11/2008
7338279Air bag cover body forming apparatus
An air bag cover body forming apparatus, comprising forming molds (2A, 2B), groove-forming blades (3), and support rods (4), wherein the forming molds form a cavity (20) for forming a resin air bag cover body (1) having air ...
03/04/2008
7334769Resin molding machine and member for resin molding machine having film in passive state
A member for a resin molding machine wherein it has a face contacting with a molten resin, and at least a part of the face is covered with a film of an oxide of a base material of the face or a component contained in the base material. The use of the member in the m...
02/26/2008
7326045System for releasing molded part from entrapping core rings
Core portion of injection mold forms a central boss. An annular trough surrounds the central boss, the boss forming an inner trough wall. An annular core ring is positioned in the annular trough adjacent the inner trough wall. A plurality of slide segments are attac...
02/05/2008
7313895Molding unit for forming direct injection molded closures
A form, fill and seal packaging machine is configured to mold a closure directly onto a carton. The machine includes a carton erection station to receive and erect a carton and a direct injection molding station. The molding station has an internal mold tool for rec...
01/01/2008
7306759Apparatus for producing fastener assembly with molded internal helical flutes
A mold for producing a product with internal flutes is provided. The mold includes a mold body that defines a cavity and a shaft in proximity to the cavity. A pin assembly is receivably engaged in the shaft of the mold body. The pin assembly includes a pin with a gr...
12/11/2007
7303717Method of forming a thermoformed foam part
A pair of form keys and a method for forming reverse drafts in foam parts are disclosed. A male form key is reciprocally mounted in a first mold half in a retracted position. A female form key is rotatably mounted in a second mold half in a neutral position. The fir...
12/04/2007
7293972Mold for molding electric wire protection cap
The mold for molding an electric wire protection cap includes an outer mold and an inner mold for forming a cap body of the electric wire protection cap, the inner mold including a first mold member and a second mold member, the first mold member including a project...
11/13/2007
7291005Mold for manufacturing housing of hydraulic unit of anti-lock brake system
Disclosed herein is a mold for manufacturing a housing of a hydraulic unit of an anti-lock brake system for vehicles. The housing has a plurality of bores formed therein such that components, such as a plurality of valves, accumulators, hydraulic pumps, and a drivin...
11/06/2007
7276198Method and mold for making tire with tie bar
A tire having an outer surface and plurality of circumferential and lateral grooves formed into the outer surface. The circumferential and lateral grooves extend to at least one groove depth to define a groove bottom surface. The circumferential and lateral grooves ...
10/02/2007
7261853Decelerated ejector pin system and method for operating the same
A decelerated ejector pin system in an ejector half of an injection mold, that molds a molded part. The ejector half has at least one lifter, a core plate, a pin plate, an ejector bar, a base plate, and at least one ejector pin. The decelerated ejector pin system in...
08/28/2007
7255824Apparatus for molding a plastic closure with air-assisted ejection
An apparatus for molding a plastic closure includes a male mold assembly including a forming pin and an outer pin sleeve which cooperate with a female mold for defining a mold cavity. To facilitate mechanical stripping of a molded closure from the forming pin, press...
08/14/2007
7235207Method of making a tamper-indicating closure
A tamper-indicating closure for a beverage package includes a base wall having a peripheral skirt with at least one internal thread for securing the closure to a container. A tamper-indicating band is frangibly connected to an edge of the skirt, and a stop flange ex...
06/26/2007
7232541Method of vacuum thermoforming a container
A method of thermoforming shells so that their cut lips face inward toward the shells permits the production of a number of novel thermoformed products having superior nesting and de-nesting qualities and having the ability to fit together to produce a variety of cl...
06/19/2007
7229542Methods of and apparatus for molding structures using sacrificial metal patterns
Molded structures, methods of and apparatus for producing the molded structures are provided. At least a portion of the surface features for the molds are formed from multilayer electrochemically fabricated structures (e.g. fabricated by the EFABâ„¢ formation proces...
06/12/2007
7214341Method of injection molding a preform including a radially extending element
A method and apparatus for injection molding an article including a radially extending child resistant feature. Finish block halves are provided that include a pocket and that are closable together to form a neck-finish mold cavity. Mold body halves are provided tha...
05/08/2007
7192543Method and mould for manufacturing a moulded article comprising at least an elastomeric polyurethane skin
For manufacturing a moulded article comprising at least an elastomeric polyurethane skin (9) and optionally a structural backing layer (10) and an intermediate foam layer (12) a mould is used having at least a first mould part (1) compris...
03/20/2007
7192548Mold for injection molding of a flexible tube and injection molding method
The invention concerns in particular a mold for injection molding of a flexible tube, said mold comprising as molding tools, a nozzle receptacle, an impression and a core, housed in a stack of plates. The invention is characterized in that said molding tools have pa...
03/20/2007
7186112Injection mold for forming crimp-on pour spouts
An injection mold has first, second and third mold parts. The first mold part defines a void having a front end, a rear end and a central axis. The second mold part includes a plug portion and a protuberant portion. The third mold part has a molding position frontwa...
03/06/2007
7186103Tire tread mould
The invention relates to a tire tread mould comprising a lower molding part (2) and an upper molding part (3) defining respectively the outer surface or the inner surface of a tread, at least one of the parts being movable between two positions corresp...
03/06/2007
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