$\require{mediawiki-texvc}$
  • 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색연산자 기능 검색시 예
() 우선순위가 가장 높은 연산자 예1) (나노 (기계 | machine))
공백 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 예1) (나노 기계)
예2) 나노 장영실
| 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 예1) (줄기세포 | 면역)
예2) 줄기세포 | 장영실
! NOT 이후에 있는 검색어가 포함된 문서는 제외 예1) (황금 !백금)
예2) !image
* 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 예) semi*
"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

System for accurately weighing solids and control mechanism for same

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01G-013/00    G01G-021/30    G05D-016/20   
미국특허분류(USC) 177/116; 222/077; 141/083; 406/014; 406/146
출원번호 UP-0911145 (2006-03-27)
등록번호 US-7683271 (2010-04-21)
국제출원번호 PCT/US2006/011266 (2006-03-27)
§371/§102 date 20071010 (20071010)
국제공개번호 WO06/113065 (2006-10-26)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Woodcock Washburn LLP
인용정보 피인용 횟수 : 3  인용 특허 : 13
초록

A system for accurately weighing a mass of material, including a closed chamber (20) having a gas inlet (22) and a gas outlet (24). A scale (30) is disposed in the closed chamber (20). An inert gas supply, under positive pressure, is connected to the gas inlet (22) and a vacuum powered pressure regulator (100) is connected to the gas outlet (24) to maintain a predetermined pressure level within the closed chamber (20) and to substantially inhibit pressure fluctuations within the chamber (20) that may affect accuracy of the scale (30).

대표
청구항

What is claimed: 1. A system for accurately weighing a mass of material, comprising: a) a closed chamber (20) including a chamber gas inlet (22) and a gas outlet (24); b) an inert gas supply under positive pressure connected to the gas inlet (22); c) a scale (30) disposed in the closed chamber (20) ; and d) a vacuum powered pressure regulator (100) operatively connected to the gas outlet (24) to maintain a predetermined pressure level within the closed chamber (22) and to substantially inhibit pressure fluctuations within the closed chamber (22), wherei...

이 특허에 인용된 특허 (13)

  1. Roettger Belinda F. (Rockford IL). Apparatus for separating and compressing oxygen from an air stream. USP1992075131225.
  2. Hafner Hans Wilhelm (Aichach-Walchshofen DEX). Bulk material weighing container with pressure feedback. USP1997095670751.
  3. Sinha Drew ; Coker Jack Harlan ; Krishnakumar Subramania. Continuously fed single bubbler for epitaxial deposition of silicon. USP2000096123765.
  4. Jones,Philip E.. Cooling system for an on-board inert gas generating system. USP2006026997013.
  5. Flament Grard (Verneuil-en-Halatte FRX) LeCalvez Jean P. (Paris FRX). Device for supplying a powdery product in gravimetrically metered amounts to a pneumatic line. USP1987064669921.
  6. Kobayashi Hisashi (Putnam Valley NY). Direct-fired stratified atmosphere furnace system. USP1997035609481.
  7. Diem Winfried,DEX. Method and apparatus for gravimetric dosing and mixing of at least two components. USP1998055753868.
  8. Persbeck Sven-Eric (Torslanda SEX) Almqvist Bert (Gteborg SEX). Method and arrangement for determination of values relating to the mass of a flow of material. USP1985044513830.
  9. Brett A. Mayes. Point-of-use fluid regulating system for use in the chemical-mechanical planarization of semiconductor wafers. USP2002086431950.
  10. Newby Richard Allen. System and method for generating a gaseous fuel from a solid fuel for use in a gas turbine based power plant. USP1999105964085.
  11. Jones,Philip E.; O'Hara,Michael J.; Greenawalt,Brian P.. System and method for monitoring the performance of an inert gas distribution system. USP2006037013905.
  12. Sayles David C. (Huntsville AL). Thermolysis of tetraalkylammonium borohydrides to bis(tetraalkylammonium) decahydrodecaboranes. USP1983074391993.
  13. Volkmann,Thilo. Vacuum conveying apparatus with a weighing or metering device. USP2008057368671.