Invention Grant
- Patent Title: Liquid device having filter
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Application No.: US14571033Application Date: 2014-12-15
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Publication No.: US10076784B2Publication Date: 2018-09-18
- Inventor: Paul Anthony Withey , Max Eric Schlienger
- Applicant: Rolls-Royce Corporation
- Applicant Address: US IN Indianapolis
- Assignee: Rolls-Royce Corporation
- Current Assignee: Rolls-Royce Corporation
- Current Assignee Address: US IN Indianapolis
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: B22D37/00
- IPC: B22D37/00 ; C22B9/02 ; C22B21/06

Abstract:
A liquid containing receptacle having a filter is disclosed that in one form includes a nozzle. The filter includes a passage having a portion with a size that restricts the flow of a liquid there through unless sufficient pressure is applied to overcome a liquid and filter property such as surface tension. The pressure in the liquid at the filter can be varied by changing a gas overpressure above a surface of the liquid, changing a head height of the liquid, and/or changing the liquid and filter property, among possible others. In one embodiment the liquid containing receptacle can be used to contain a molten metal that is used in an investment casting mold. The molten metal can be selectively poured into a mold by selectively changing pressure of the molten metal at the filter or by changing the pressure at which molten metal flows through the filter.
Public/Granted literature
- US20150209860A1 LIQUID DEVICE HAVING FILTER Public/Granted day:2015-07-30
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