US2018147757A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018147757-A1 |
| Application number | US-201615364402-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 30, 2016 |
| Priority date | Nov 30, 2016 |
| Publication date | May 31, 2018 |
| Grant date | — |
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
What the patent document calls the invention.
A short plain-language summary of the technical disclosure.
Who owns or filed the patent and who is credited as inventor.
Filing, priority, publication, and grant dates set the timeline.
The legal scope of protection — read this for what is actually claimed.
Technology tags used to group this patent with similar filings.
Prior art links and similar publications in this corpus.
Official abstract text for this publication.
A system for manufacturing a particulate-binder composite article including a mold defining a mold cavity, a first opening into the mold cavity, and a second opening into the mold cavity, a mass of a particulate material received in the mold cavity, a binder source in selective fluid communication with the mold cavity by way of the first opening, the binder source including a binder material, a first filter disposed across the first opening, the first filter being permeable to the binder material and substantially impermeable to the particulate material, and a second filter disposed across the second opening, the second filter being permeable to air and substantially impermeable to the particulate material.
Opening claim text (preview).
What is claimed is: 1 . A system for manufacturing a particulate-binder composite article, said system comprising: a mold defining a mold cavity, a first opening into said mold cavity, and a second opening into said mold cavity; a mass of a particulate material received in said mold cavity; a binder source in selective fluid communication with said mold cavity by way of said first opening, said binder source comprising a binder material; a first filter disposed across said first opening, said first filter being permeable to said binder material and substantially impermeable to said particulate material; and a second filter disposed across said second opening, said second filter being permeable to air and substantially impermeable to said particulate material. 2 . The system of claim 1 wherein said first opening is opposed from said second opening. 3 . The system of claim 1 wherein said particulate material comprises a metallic powder. 4 . The system of claim 1 wherein said particulate material comprises tungsten powder. 5 . The system of claim 4 wherein said tungsten powder has an average particle size of at most about 30 microns. 6 . The system of claim 1 wherein said binder material comprises a thermosetting polymer. 7 . The system of claim 1 wherein said binder material has a viscosity of at most about 100 centipoise. 8 . The system of claim 1 wherein said second filter is substantially impermeable to said binder material. 9 . The system of claim 1 further comprising a vacuum source in selective fluid communication with said mold cavity by way of said second opening. 10 . The system of claim 1 further comprising a vibrator vibrationally coupled with said mold. 11 . A method for manufacturing a particulate-binder composite article, said method comprising: placing a mass of a particulate material into a mold cavity of a mold, said mold defining a first opening into said mold cavity and a second opening into said mold cavity; positioning a first filter across said first opening, said first filter being substantially impermeable to said particulate material; positioning a second filter across said second opening, said second filter being permeable to air and substantially impermeable to said particulate material; and injecting a binder material into said mold cavity by way of said first opening, said first filter being permeable to said binder material. 12 . The method of claim 11 further comprising selecting a tungsten powder as said particulate material. 13 . The method of claim 12 wherein selecting said tungsten powder comprises selecting a tungsten powder comprising an average particle size of at most about 30 microns. 14 . The method of claim 11 further comprising selecting as said binder material a thermosetting polymer having a viscosity of at most about 100 centipoise. 15 . The method of claim 11 further comprising selecting an epoxy resin as said binder material. 16 . The method of claim 11 further comprising selecting as said second filter a filter that is substantially impermeable to said binder material. 17 . The method of claim 11 further comprising drawing a vacuum in said mold cavity by way of said second opening. 18 . The method of claim 11 further comprising applying vibration to said mold prior to said step of injecting said binder material. 19 . The particulate-binder composite article formed by the method of claim 11 . 20 . A rotor blade comprising a tuning weight formed by the method of claim 11 .
by injection molding · CPC title
Rotors tracking or balancing devices · CPC title
Aspects linked to processes or compositions used in powder metallurgy · CPC title
Blades, e.g. for helicopters · CPC title
Macromolecular compounds · CPC title
Related publications grouped by family.
Answers are generated from the same data shown on this page.