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특허 상세정보

Valve assembly

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16L-007/00   
미국특허분류(USC) 137/375 ; 137/315 ; 251/368
출원번호 US-0263240 (1994-06-28)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 9  인용 특허 : 12
초록

Molten metal is delivered from a master furnace to the molten metal holding chamber of a low pressure casting machine by a launder assembly having a unitary, quickly replaceable, valve assembly including a valve which, when closed, prevents flow of the molten metal from the master furnace to the holding vessel. The valve has a plug mounted for rotation in a valve body which may be made from graphite. In a modification, the valve has a port centered in a valve plate and a movable plug which may be made from aluminum titanate. In operation, the valve is op...

대표
청구항

A valve assembly for use in a low pressure casting apparatus, said valve assembly comprising: an elongate housing having a longitudinally-extending through bore; a valve body assembly spanning said through bore and comprising a valve plate made from a non-wetting ceramic material and having a valve port centered about a vertical axis; a valve closure member made from a non-wetting ceramic material and axially movable along said vertical axis to open and close said port; and a valve drive mechanism for moving said valve closure member along said axis.

이 특허에 인용된 특허 (12)

  1. Farmer John Edgar (12034 S. Emerald Ave. Chicago IL 60628). Battery strap mold and anti-drip pouring means. USP1977104053012.
  2. Smith Robert A. (Newbury GBX). Controlling the position of liquid metal in a vessel. USP1991065022458.
  3. Sasaki Masato (Kanagawa JPX) Yamada Yoshihiro (Kanagawa JPX). Die for forming aluminum silicon alloy. USP1994045303764.
  4. Balevski Angel T. (Sofia BGX) Nikolov Ivan D. (Sofia BGX) Antonov Asparuch M. (Sofia BGX). Low-pressure or counterpressure casting apparatus. USP1979054153100.
  5. Kotthoff Winfried (Eversberg DT) Wiedenroth Wolfgang (Meschede (Ruhr) DT). Metering device for metal casting machines, particularly low pressure casting machines. USP1977094047558.
  6. Campbell John (Worcester GBX). Method and apparatus for melting and casting metal. USP1990114967827.
  7. Pereira Joseph A. T. (Weybridge GB2). Method and apparatus for the low-pressure die-casting of metals. USP1989084860820.
  8. Sieurin Sven Ivar (Upplands Vasby SW). Method of distributing molten metal to consumer stations. USP1976023940264.
  9. Belloci Rio (Pont-a-Mousson FRX). Process and device for controlling a vessel for pouring liquid under low pressure in a repeated manner. USP1979034143687.
  10. Keller Hartmut (Selb/Bayern DEX) Krauth Axel (Selb/Bayern DEX) Maier Horst R. (Selb/Bayern DEX) Nink Horst (Selb/Bayern DEX) Pohlmann Hans J. (Selb/Bayern DEX) Reddig Horst (Marktredwitz DEX) Siebels. Refractory articles and composite metal-ceramic articles (cermets) prepared from a silicate-containing aluminum titanate. USP1981074277539.
  11. Weber Udo (Hochheim DEX) Lhrsen Ernst (Bad Schwalbach DEX) Ott Albert (Waldems-Wstems DEX) Lee Steve (Clydebank GB6). Refractory discharge device with separate external reinforcement member. USP1992035092500.
  12. Waltensphl Rolf (Hnenberg CHX). Refractory shutoff assembly and rotor and stator therefor. USP1992025085356.