Rotary valve assembly for use in regulating the flow of molten material
US4557462A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1983 |
| Grant date | Dec 10, 1985 |
| Priority date | — |
| Expiry date | Dec 28, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K5/0242
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A rotary valve assembly for use in regulating the flow of molten material includes a stator member having therethrough a flow opening and adapted to be fixed to a source of molten material with the flow opening communicating with such source. The stator member has therein a rotor-receiving opening interrupting the flow opening and defined by a conical bearing surface. A frusto-conical shaped rotor member extends into the rotor-receiving opening, and the rotor member has an outer surface complementary to the bearing surface of the stator member. The rotor member has extending laterally therethrough a flow opening which, upon rotation of the rotor member with respect to the stator member, may be moved into and out of alignment with the flow opening of the stator member. A power driven device is provided to rotate the rotor member with respect to the stator member, thereby to selectively regulate the relative degree of alignment of the flow openings. A mechanical clutch transmits rotational torque of the power driven device to the rotor member and urges the rotor member toward the stator member to ensure sealing engagement between the outer surface of the rotor member and the sealing …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.