| Patent application number | Description | Published |
|---|
| 20090107787 | INSERTS WITH HOLES FOR DAMPED PRODUCTS AND METHODS OF MAKING AND USING THE SAME - One embodiment of the invention includes a frictional damping insert including a body constructed and arranged to be incorporated into a product and to form at least a portion of a frictional damping means, the body including lines of weakness constructed and arranged to segment the body into separate sections upon exposure to a molten material. | 04-30-2009 |
| 20100212854 | HOLLOW SAND CORES TO REDUCE GAS DEFECTS IN CASTINGS - An exemplary method for forming a sand core includes forming a core insert; forming a sand core precursor around the core insert; and creating at least one passage within the sand core precursor by removing or otherwise transforming a portion of the core insert, wherein the at least one passage includes at least one exit point. The sand core may then be utilized in a casting mold assembly to form a cast part. | 08-26-2010 |
| 20100288460 | METHOD OF FORMING A HOLLOW SAND CORE - A method of forming a hollow sand core involves placing a preform into a cavity defined in a mold, where the preform has a predetermined configuration. A granular material is then introduced into the mold cavity and around the preform. The introduced granular material is established around the preform to form the hollow sand core. The preform is deformed in a manner sufficient to enable removal of the preform from inside the hollow sand core, and then is removed from the sand core. The removal of the preform exposes a hollow portion of the sand core. | 11-18-2010 |
| 20110094701 | METHOD AND APPARATUS FOR FORMING A CASTING - A casting chamber configured to form a casting from molten material includes an outer mold, a plurality of inner core elements, and a surface portion of a thermal chill device. The thermal chill device includes first and second interchangeable elements with the surface portion of the thermal chill device including one of a first surface portion of the first interchangeable element and a second surface portion of the second interchangeable element. The first surface portion of the first interchangeable element includes an insulating material and the second surface portion of the second interchangeable element comprising a metallic material. | 04-28-2011 |
| 20110198964 | INVESTMENT CASTING OF INDUCTION MOTOR ROTORS - A procedure for casting a shorted structure around a plurality of induction motor rotors is described. The method comprises forming a wax representation of the shorted structure around a lamination stack; mounting a plurality of such lamination stacks in a mounting fixture and attaching a suitable gating and runner system; forming an investment by coating the structure with refractory followed by melting out the wax; casting molten metal into the investment while it is rotating and aligning the mold to allow the centrifugal force generated to promote mold filling; and, continuing to rotate the investment until solidification is substantially complete. | 08-18-2011 |
| 20110284138 | METHOD, MOLD, AND MOLD SYSTEM FOR FORMING ROTORS - A mold for forming a plurality of rotors includes a plurality of lamination stacks, wherein each lamination stack defines at least one void therethrough; a tube having a central longitudinal axis, wherein each lamination stack is concentrically spaced apart from the tube to define a channel therebetween; a plurality of washers each having a shape defined by a first diameter and a second diameter that is greater than the first diameter, wherein each washer is configured to concentrically abut the tube and define a feed conduit interconnecting with the channel; and a shell disposed in contact with each lamination stack and concentrically spaced apart from each washer to define a plurality of ducts, wherein each duct is interconnected with the at least one void of at least one lamination stack. A mold system and a method of forming a plurality of rotors are also described. | 11-24-2011 |
| 20110291517 | METHOD AND APPARATUS FOR FABRICATING A ROTOR FOR AN INDUCTION MOTOR - A method for forming a rotor for an induction motor includes providing a rotor core including a plurality of conductor bar grooves having first and second ends corresponding to first and second ends of the rotor core wherein the conductor bar grooves are progressively larger closer to the ends of the conductor bar grooves. The rotor core is placed into a casting mold, and molten metal is introduced into a first end of the casting mold. The molten metal flows from the first end of the casting mold through the plurality of conductor bar grooves to a second end of the casting mold. The molten metal solidifies to form conductor bars in the plurality of conductor bar grooves and to form shorting rings across exterior portions of the end elements within the first and second ends of the casting mold. | 12-01-2011 |
| 20110291521 | STATOR FOR AN INDUCTION MOTOR - A substantially hollow cylindrical stator core having a longitudinal axis includes a plurality of winding slots longitudinally parallel with the longitudinal axis each having first and second ends wherein the slots taper progressively larger closer to the ends of the slots. | 12-01-2011 |
| 20110293682 | SELF-TRIGGERED MICROENCAPSULATED BIOCIDES AND/OR FUNGICIDES - One embodiment includes a biocide-containing and/or fungicide-containing microcapsule wherein the microcapsule may be capable of degradation due to the presence of byproducts that are released by a fungi or biological organism. Upon release, the biocide and/or fungicide may then be utilized to eliminate the fungi or biological organism. | 12-01-2011 |
