• 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"
쳇봇 이모티콘
ScienceON 챗봇입니다.
궁금한 것은 저에게 물어봐주세요.

특허 상세정보


국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F25D-017/04   
미국특허분류(USC) 62/409 ; 98/87 ; 98/119 ; 62/408
출원번호 US-0526265 (1974-11-22)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 14  인용 특허 : 0

The present invention includes a ventilator for use in equalizing pressures within and without an enclosure, such as a coldroom or the like. A heated valve assembly is situated within an enclosure wall opening such that it is freely exposed to both environmental and internal fluid air pressures. A fluid impervious wall formed with inlet and outlet ports therethrough is partially covered by inner and outer closure members, both of which are supported and keyed by a common rod or shaft. These closure members are each biased by a common helical spring towar...


A ventilator for use in controlling the flow of fluid such as air to and from an enclosure or the like, the enclosure including a supporting wall defining a ventilating opening therethrough, the improvement comprising: a valve assembly having portions thereof disposed within said ventilating opening, said valve assembly Including a substantially fluid impervious wall formed with a guide opening therethrough and further defining first and second fluid ports therethrough, a first closure member springbiased toward a normally closed position such that porti...

이 특허를 인용한 특허 피인용횟수: 14

  1. Fiddler R. Charles (Parson TN) Coleman Nathan L. (Parson TN). Door jamb post and valved vent passage with heater. USP1987054662270.
  2. Jones, Timothy M.; Keck, Russell W.. Interlocking vent assembly for equalizing pressure in a compartment. USP2014028651924.
  3. Kordon, Rolf; Pradel, Renate. No-frost refrigerator. USP2010027654106.
  4. Marleau, Jim Antime; Petniunas, Alexander; Dishman, Todd William; Reo, Kenneth Michael. Powered diaphragm air extractor and control system. USP2016089410717.
  5. Weng, Chuan. Pressure equalization port apparatus and method for a refrigeration unit. USP2010057716945.
  6. Carden, Michael Scot; Myers, John Phillip. Pressure relief system for a refrigerator. USP2004016672094.
  7. Kim, Jubaeg. Refrigerator. USP2014128905502.
  8. Diebold, Jürgen; Laible, Karl-Friedrich; Malisi, Michaela. Refrigerator with pressure equalization valve. USP2012018099974.
  9. Cook Sanford L. (Ocean NJ) Molisani Justin J. (Bricktown NJ). Shielded vent port. USP1981034257445.
  10. Allan D. Kelly ; Paul Steinhoff. Ultra-low temperature freezer cabinet utilizing vacuum insulated panels. USP2002066397620.
  11. Perkins Travis M. ; Kelley Brian P. ; Adler Armon A.. Vacuum release valve tube assembly. USP1998115836170.
  12. Bellini,Jacqueline Ferrāo Lampert; Bernardelli,Guido G찼rcia; Souza,Juarez Medeiros de; Silva,Edson Adriano da. Vacuum-breaking valve for a refrigerated compartment. USP2006097107780.
  13. Graham, Thomas. Vent port for a refrigerated cabinet. USP20181210145574.
  14. Finkelstein, Burl. Ventilator. USP2015038992293.