11/22/2011
8,061,005
Method for employing quick change injection molding tooling
Kipp et al of CareFusion 303, California, developed a tooling module using a  carrier unit fir inserting a mold  into a molding press so that the carrier unit rests on a supporting member of an injection molding press, and closing the molding press until the tooling module is mated to an ejection side of a mold base.  (RDC 11/28/2011)

10/11/2011
8,033,810
Lock for core assembly for injection molding tool
Helenius and Cullison of Progressive Components, Illinois, developed an injection molding tool having a core assembly with a shaft that is lockably or securedly mounted within a bore of a plate or within another suitable lock element.  Rotational or other suitable movement of the lock results in or translates into axial movement of and/or axial forces apply to the core assembly.  A guide ring assembly has a center ring with a non-circular bore and a correspondingly shaped core assembly, to prevent rotational movement of the core assembly with respect to the guide ring assembly.  (RDC 10/13/2011)

10/11/2011
8,033,808
Pressure compensating molding system
Sevigny of Delta, Tennessee, developed a pressure compensating molding system with die faces of thin sheets. A thin die sheet separates a mold cavity from a heating/cooling cavity. A heating system causes a heated fluid to flow through the heating/cooling cavity, thereby preheating the thin sheet. The injection material is forced through a sprue into the mold cavity. Pressure sensors monitor the pressure of the injection material in the mold cavity and in the heating/cooling cavity. A controller varies the pressure in the heating/cooling cavity to equalize a pressure differential across the thin die sheet. A cooling system causes a cooling fluid to flow through the heating/cooling cavity to cool the molded component.  (RDC 10/13/2011)

9/27/2011
8,025,828
Injection molding device with a rotatable central part
Armbruster of Foboha, Germany, developed an injection molding device based on hinge closures with several components can be produced and closed before removal, while further parts are produced in two further mold parting planes.  (RDC 9/29/2011)

9/13/2011
8,017,049
Apparatus and method for producing resin product
Kong of Hyundai Motor, South Korea, molded a product in which a first resin layer partially covered with a second resin layer so that a boundary line between the first and second resin layers is visible from the outside. This includes a first mold side having a recess, a second mold side configured and dimensioned to enclose the recess of the first mold side ,a slide core movably fitted in the recess of the first mold side defining a second cavity into which a second resin is injected to form the second resin layer.  (RDC 9/14/2011)

3/1/2011
7,896,635
Method and apparatus for forming hollow moldings having thin film on inner surface
Nishida of the Japan Steel Works, Japan, has developed a movable mold and a slide mold.  After molding the inner surface of the body is coated a deposition apparatus with an electrode.  After coating, the slide mold is driven so that the cover member may be registered with the deposited body portion. Then, a secondary molding resin is injected to integrate the body portion and the cover member.  (RDC 9/9/2011)

2/22/201
7,891,970
Apparatus and method for manufacturing products from a thermoplastic mass
Hoogland of ECIM Technologies, Netherlands,has developed a mold for an injection molding machine with a slide
within the mold.  After the material is injected the slide pushes the material further into the mold at very high speed so adiabatic heating develops.  (RDC 8/30/2011)

2/15/2011
7,887,318
Mold assembly for molding tapered flange
Tsuyuki,  Sumiya and Onmori of Fujifilm, Japan, have developed a mold for tape reel flanges by injection molding and having a tapered inside surface sloping down at a fixed taper angle from an inside periphery to an outside periphery.  (RDC 8/25/2011)

1/18/2011
7,871,261
Injection-molding apparatus for producing profiled elongated parts
Steiner and Krivec of Germany injection molding machine with clamping plates for producing profiled parts, elongated at least in sections, by means of closure-side components and a slide.  The movement of the slide determines the dimension and shape inside and outside the mold.  (RDC 8/4/2011)

1/11/2011
7,867,430
Injection mold and injection molding method using the same
Shin, Kim and Heo of Samsung, South Korea, developed an injection mold which can reduce the amount of resin that is separated from injection-molded parts and then thrown away. The injection mold includes an extension cylinder coupled to an upper clamp plate and having a nozzle at an end  and a nozzle positioner. (RDC 7/22/2011)

1/4/2011
7,862,752
Apparatus and method for checking mold vent condition
Schwenck, Wisconsin, checked the venting of a mold using a vacuum gauge.

12/28/2010
7,857,612
Molding-system platen having anti-tilt structure
Teng and  Nogueira of Husky Injection Molding Systems, Canada have developed platens for an injection molding machine with anti-tilt structures.  The anti-tilt structures are attached to the mold support.  (RDC 6/29/2011)

10/19/2010
7,815,840
Modular mold system and related method
Welsh and Goodge of Ace Mold Company, China  has developed a modular mold system includes a hot half and a cold half. The hot half has a heated distributor assembly to receive molding material from an injection molding machine.   The cold half includes a mounting plate and a plurality of cold-side units associated with the multi-nozzle units. Each cold-side unit is removably fastened to the mounting plate and engagable with one of the multi-nozzle units to define the one or more mold cavities. (RDC 1/24/2011)

10/5/2010
7,807,080
Offset mold twinning
Hampel has developed a mold with overlapping mold parts so that the parts are later joined by pressing.  (RDC 12/20/2010)

9/28/2010
7,802,982
Grooved-surface air conduit for injection molds
Ciccone et al of Top Grade Molds, Canada has developed an injection mold of two or more sections, with grooved abutment surfaces for air flows.  (RDC 12/7/2010)